USPC Patent Classifications

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Class 521 synthetic resins or natural rubbers -- part of the class 520 series
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521/25521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing
521/26521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (26) process of regenerating
521/27521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (27) membrane or process of preparing
521/28521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (28) previously formed solid ion-exchange polymer admixed with nonreactive material or ion-exchange polymer
521/29521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (29) polymer characterized by defined size or shape other than bead or pearl
521/30521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer
521/31521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer (31) solid polymer derived from ethylenically unsaturated reactant only
521/32521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer (31) solid polymer derived from ethylenically unsaturated reactant only (32) treated with nitrogen-containing material
521/33521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer (31) solid polymer derived from ethylenically unsaturated reactant only (33) treated with sulfur-containing material
521/34521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer (34) solid polymer derived from at least one 1,2-epoxy containing reactant
521/35521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer (35) solid polymer derived from aldehyde or derivative
521/36521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer (35) solid polymer derived from aldehyde or derivative (36) treated with nitrogen-containing material
521/37521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (30) chemically treated solid polymer (35) solid polymer derived from aldehyde or derivative (37) treated with sulfur-containing reactant
521/38521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (38) from ethylenically unsaturated reactant only
521/39521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (25) ion-exchange polymer or process of preparing (39) from aldehyde or derivative
521/40521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom
521/40.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only
521/41521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties
521/41.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (41.5) treating with organic phosphorus-containing material
521/42521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (42) treating with organic nitrogen-containing material
521/42.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (42.5) treating with organic chalcogen-containing material
521/43521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (42.5) treating with organic chalcogen-containing material (43) containing organic sulfur
521/43.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (42.5) treating with organic chalcogen-containing material (43.5) containing carboxylic acid or anhydride group
521/44521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (42.5) treating with organic chalcogen-containing material (44) containing hydroxyl group
521/44.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (44.5) treating with hydrocarbon or halogenated hydrocarbon material
521/45521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (45) treating with steam or water
521/45.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (41) treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties (45.5) treating with mechanical action and in the absence of a chemically reactive additive or solvent
521/46521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (46) treating polymer derived from a monomer containing only carbon, hydrogen, and halogen or only carbon and halogen; or treating a polymer which has been derived from at least one hydrocarbon and which has been subsequently halogenated
521/46.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (46) treating polymer derived from a monomer containing only carbon, hydrogen, and halogen or only carbon and halogen; or treating a polymer which has been derived from at least one hydrocarbon and which has been subsequently halogenated (46.5) treating polymer derived from vinyl chloride monomer
521/47521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (40.5) process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only (47) treating polymer derived from hydrocarbon monomers only
521/47.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (47.5) treating polysiloxane
521/48521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (48) treating polyester
521/48.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (48) treating polyester (48.5) treating with alcohol
521/49521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (49) treating polyurethane, polyurea (excluding urea-formaldehyde polymers), polyisocyanurate or polycarbodiimide
521/49.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (49) treating polyurethane, polyurea (excluding urea-formaldehyde polymers), polyisocyanurate or polycarbodiimide (49.5) treating with alcohol or amine
521/49.8521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (40) process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom (49.8) treating polycarbonamide
521/50521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc.
521/50.5521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (50.5) compositions to be polymerized by wave energy in order to prepare a cellular product wherein said composition contains a rate-affecting material; or compositions to be modified by wave energy to prepare a cellular product wherein said composition contains a rate-affecting material; or processes of preparing or treating a solid polymer utilizing wave energy in order to prepare a cellular product
521/51521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (51) processes of preparing a cellular product having an integral skin
521/52521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (52) reticulated cellular product or processes of preparing a reticulated cellular product
521/53521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (53) treating a cellular solid polymer by adding a material thereto which reacts with the polymer or forms a composition therewith, or products of said treating process
521/54521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (53) treating a cellular solid polymer by adding a material thereto which reacts with the polymer or forms a composition therewith, or products of said treating process (54) treating a cellular solid polymer by adding a solid polymer or solid polymer-forming composition
521/55521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (53) treating a cellular solid polymer by adding a material thereto which reacts with the polymer or forms a composition therewith, or products of said treating process (55) treating a cellular solid polymer by adding a material thereto which forms a composition therewith
521/56521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (56) particle which is expandible, process of preparing an expandible particle, or process of expanding a particle to form a cellular product
521/57521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (56) particle which is expandible, process of preparing an expandible particle, or process of expanding a particle to form a cellular product (57) including step of surface coating a particle or process of expanding a surface coated particle
521/58521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (56) particle which is expandible, process of preparing an expandible particle, or process of expanding a particle to form a cellular product (58) expanding utilizing plural expansion steps
521/59521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (56) particle which is expandible, process of preparing an expandible particle, or process of expanding a particle to form a cellular product (59) expandible system contains two or more solid polymers or at least one solid polymer and at least one polymer-forming system
521/60521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (56) particle which is expandible, process of preparing an expandible particle, or process of expanding a particle to form a cellular product (60) adding expanding agent subsequent to solid polymer formation
521/61521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (61) process of preparing a cellular product by removal of material from a solid polymer-containing matrix without expanding the matrix; composition which is nonexpandible and is designed to form a cellular product by said process; or process of preparing said composition
521/62521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (61) process of preparing a cellular product by removal of material from a solid polymer-containing matrix without expanding the matrix; composition which is nonexpandible and is designed to form a cellular product by said process; or process of preparing said composition (62) mixture of solid polymers present during cell formation
521/63521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (61) process of preparing a cellular product by removal of material from a solid polymer-containing matrix without expanding the matrix; composition which is nonexpandible and is designed to form a cellular product by said process; or process of preparing said composition (63) cellular product-forming process wherein the removable material is present or is produced in situ during the solid polymer formation step
521/64521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (61) process of preparing a cellular product by removal of material from a solid polymer-containing matrix without expanding the matrix; composition which is nonexpandible and is designed to form a cellular product by said process; or process of preparing said composition (64) removing a liquid to form a cellular product
521/65521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof
521/66521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof (66) treating a latex, dispersions, or emulsion containing a solid polymer at 32 degrees f. or below, e.g., freezing, etc.
521/67521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof (67) adding -n=c=x material to a latex, dispersion, or emulsion containing a solid polymer
521/68521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof (68) adding fibrous material to a latex, dispersion, or emulsion containing a solid polymer
521/69521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof (69) latex, dispersion, or emulsion contains an additional solid polymer-forming system
521/70521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof (70) latex, dispersion, or emulsion contains two or more solid polymers
521/71521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof (71) solid polymer is derived from a conjugated diene monomer
521/72521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (65) process of forming a cellular product from an aqueous latex, aqueous dispersion, or aqueous emulsion containing a solid polymer; process of preparing a latex, dispersion, or emulsion containing a solid polymer which is designed to be formed into a cellular product, or composition thereof (72) utilizing cell forming agent other than air
521/73521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (73) process of preparing a cellular product of a plastisol of a solid polymer derived solely from ethylenically unsaturated monomers; forming a plastisol of a solid polymer derived solely from an ethylenically unsaturated monomer which is designed to be formed into a cellular product, or composition thereof
521/74521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (73) process of preparing a cellular product of a plastisol of a solid polymer derived solely from ethylenically unsaturated monomers; forming a plastisol of a solid polymer derived solely from an ethylenically unsaturated monomer which is designed to be formed into a cellular product, or composition thereof (74) by incorporation of material in gaseous state
521/75521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (73) process of preparing a cellular product of a plastisol of a solid polymer derived solely from ethylenically unsaturated monomers; forming a plastisol of a solid polymer derived solely from an ethylenically unsaturated monomer which is designed to be formed into a cellular product, or composition thereof (75) system contains two or more solid polymers or contains at least one solid polymer and at least one polymer-forming system
521/76521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (76) preparing a cellular product utilizing a stated ingredient which is surface coated or is a discrete solid particle containing a fluid encapsulated therein, processes of forming an expandible composition, containing said stated ingredient or composition therefrom
521/77521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (77) preparing a cellular product by decomposition of a solid polymer; or process of forming a composition containing a solid polymer which decomposes so as to subsequently form a cellular polymer, or composition therefrom
521/78521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (78) preparing a cellular product by spraying a solid polymer containing material
521/79521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (79) extruding a solid polymer containing material to form a cellular product
521/80521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (79) extruding a solid polymer containing material to form a cellular product (80) including solid polymer formation in or during extruding step
521/81521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (79) extruding a solid polymer containing material to form a cellular product (81) system contains a mixture of solid polymer or at least one solid polymer and at least one solid polymer-forming system
521/82521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same
521/83521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (83) ingredient is asphaltic, bituminous, or water settable inorganic material, e.g., cement, plaster of paris, etc.
521/84.1521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (84.1) ingredient is protein, carbohydrate, or natural resin
521/85521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (85) ingredient contains a boron or phosphorus atom
521/86521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (86) ingredient is organic silicon compound
521/87521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (87) ingredient is aldehyde or ketone
521/88521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (88) ingredient is ether, alcohol, or inorganic alcoholate, e.g., phenol, etc.
521/89521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (89) ingredient contains a sulfur atom
521/90521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (90) ingredient is a heterocyclic compound
521/91521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (91) ingredient contains a silicon atom
521/92521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (92) ingredient contains a metal atom
521/93521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (92) ingredient contains a metal atom (93) metal atom is part of an organic compound
521/94521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (94) ingredient is a nitrogen containing compound
521/95521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (94) ingredient is a nitrogen containing compound (95) nitrogen compound contains a nitrogen atom bonded to a nitrogen or oxygen atom
521/96521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (96) ingredient contains an -o-o- group
521/97521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (97) ingredient contains a carbon atom double-bonded to oxygen, e.g., carbon dioxide, carboxylic acid, etc.
521/98521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (82) process of forming a cellular product subsequent to solid polymer formation in the presence of a stated ingredient, noncellular composition capable of forming a cellular product and containing a stated ingredient, or process of preparing same (98) ingredient contains only c and h atoms, only c and halogen atoms, or only c, h, and halogen atoms
521/99521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water
521/100521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (100) ingredient is water settable inorganic composition
521/101521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (101) ingredient is bituminous or asphaltic material
521/102521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (102) ingredient is a protein containing material
521/103521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (103) ingredient contains a boron atom
521/104521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (103) ingredient contains a boron atom (104) boron trihalide or complex thereof
521/105521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (103) ingredient contains a boron atom (105) boron atom is part of an organic compound
521/106521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (106) ingredient contains a phosphorus atom
521/107521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (106) ingredient contains a phosphorus atom (107) phosphorus atom is part of an organic compound
521/108521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (106) ingredient contains a phosphorus atom (107) phosphorus atom is part of an organic compound (108) organic phosphorus compound contains a phosphorus atom bonded to an atom other than oxygen
521/109.1521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (109.1) ingredient is carbohydrate, or natural resin
521/110521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (110) ingredient contains a silicon atom as part an organic compound
521/111521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (110) ingredient contains a silicon atom as part an organic compound (111) organic silicon atom compound contains an atom other than oxygen, hydrogen, silicon, or carbon
521/112521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (110) ingredient contains a silicon atom as part an organic compound (112) organic silicon compound contains an ether group
521/113521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (113) ingredient is aldehyde or ketone
521/114521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (114) ingredient contains a -c-x-c- group wherein x is a chalcogen atom and none of the c atoms bonded to the chalcogen are double-bonded to an additional chalcogen atom
521/115521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (114) ingredient contains a -c-x-c- group wherein x is a chalcogen atom and none of the c atoms bonded to the chalcogen are double-bonded to an additional chalcogen atom (115) -c-x-c- compound contains a nitrogen atom
521/116521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (114) ingredient contains a -c-x-c- group wherein x is a chalcogen atom and none of the c atoms bonded to the chalcogen are double-bonded to an additional chalcogen atom (116) -c-x-c- compound contains a -c-xh group wherein x is a chalcogen atom
521/117521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (117) ingredient contains a -c-xh group wherein x is a chalcogen atom and the carbon atom is not double-bonded to a chalcogen atom, phenol, etc.
521/118521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (117) ingredient contains a -c-xh group wherein x is a chalcogen atom and the carbon atom is not double-bonded to a chalcogen atom, phenol, etc. (118) -c-xh ingredient contains a nitrogen atom
521/119521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (119) ingredient is inorganic halogen containing material
521/120521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (120) ingredient contains a sulfur atom
521/121521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (120) ingredient contains a sulfur atom (121) sulfur atom is part of an organic compound
521/122521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (122) ingredient contains a silicon atom
521/123521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (123) ingredient contains a metal atom
521/124521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (123) ingredient contains a metal atom (124) metal atom is part of an organic compound
521/125521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (123) ingredient contains a metal atom (124) metal atom is part of an organic compound (125) organic metal compound contains a group i or group ii metal atom
521/126521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (123) ingredient contains a metal atom (124) metal atom is part of an organic compound (126) organic metal compound contains tin
521/127521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (123) ingredient contains a metal atom (124) metal atom is part of an organic compound (126) organic metal compound contains tin (127) tin compound is dibutyl tin dilaurate or stannous octoate
521/128521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (128) ingredient is a nitrogen containing compound
521/129521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (128) ingredient is a nitrogen containing compound (129) nitrogen compound contains a nitrogen atom bonded to three carbon atoms and wherein none of the carbon atoms are double-bonded to oxygen
521/130521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (130) ingredient contains a carbon atom double bonded to oxygen, e.g., carboxylic acid, etc.
521/131521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (131) ingredient contains only carbon and hydrogen atoms, only c and halogen atoms, or only c, h, and halogen atoms
521/132521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (131) ingredient contains only carbon and hydrogen atoms, only c and halogen atoms, or only c, h, and halogen atoms (132) said ingredient is substantially nonvolatile material, e.g., hydrocarbon waxes, greases, etc.
521/133521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (99) cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water (133) ingredient is gaseous at ambient conditions, e.g., air, oxygen, etc.
521/134521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (134) cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system
521/135521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (134) cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system (135) at least one polymer is derived from reactant containing two or more three membered heterocyclic rings having two carbon atoms and one chalcogen atom or polymer-forming system contains the same type of reactant
521/136521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (134) cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system (136) at least one polymer is derived from an aldehyde or derivative or wherein the polymer-forming system contains the same type of reactant
521/137521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (134) cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system (137) at least one polymer is derived from a -n=c=x reactant wherein x is a chalcogen atom or wherein the polymer-forming system contains the same type of reactant
521/138521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (134) cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system (138) at least one polymer is derived from a polycarboxylic acid or derivative and a polyol or wherein the polymer-forming system containing the same type of reactants
521/139521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (134) cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system (139) at least one polymer is derived from an ethylenically unsaturated aromatic reactant or wherein the polymer-forming system contains the same type of reactant
521/140521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (134) cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system (140) at least one polymer is derived from reactant containing two or more ethylenic groups or wherein the polymer-forming system contains the same type of reactant
521/141521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (141) cellular vinyl alcohol polymer
521/142521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only
521/143521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (143) from acyclic mono-unsaturated hydrocarbon as only reactant
521/144521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (143) from acyclic mono-unsaturated hydrocarbon as only reactant (144) interpolymer
521/145521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (145) from acyclic mono-unsaturated halogenated reactant
521/146521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (146) from aromatic reactant
521/147521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (146) from aromatic reactant (147) with oxygen or nitrogen containing reactant
521/148521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (146) from aromatic reactant (148) with conjugated diene reactant
521/149521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (149) from oxygen containing reactant
521/150521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (142) cellular product derived from ethylenically unsaturated reactants only (150) from reactant containing two or more ethylenic unsaturated groups
521/151521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (151) cellular polymer derived from tar, pitch, bitumen, asphalt, or plant material of unknown constitution, e.g., nut shell liquor, etc.
521/152521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (152) cellular product derived from boron containing reactant
521/153521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (153) cellular product derived from aluminum or heavy metal containing reactant
521/154521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (154) cellular product derived from silicon containing reactant
521/155521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom
521/156521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (156) with three-membered heterocyclic reactant containing two carbon atoms and a hetero atom (i.e., nitrogen or a chalcogen atom)
521/157521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (157) with a c-c(=x)-xh or c-c(=x)-x-c(=x)-c- reactant wherein x is a chalcogen atom, e.g., carboxylic acid or anhydride, etc.
521/158521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (158) with ketone, aldehyde, or aldehyde derivative
521/159521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (159) n=c=x reactant having at least two c-nh-c(=x)- groups, e.g., prepolymers, etc.
521/160521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (160) two or more n=c=x reactants
521/161521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (161) n=c=x reactant contains a heterocyclic ring
521/162521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (162) n=c=x reactant contains atoms other than carbon and hydrogen and other than nitrogen and chalcogen as part of the n=c=x group
521/163521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (163) with nitrogen containing reactant
521/164521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (163) with nitrogen containing reactant (164) nitrogen reactant contains a c-xh group wherein x is a chalcogen atom and wherein the c atom is not double-bonded to a chalcogen atom
521/165521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (163) with nitrogen containing reactant (164) nitrogen reactant contains a c-xh group wherein x is a chalcogen atom and wherein the c atom is not double-bonded to a chalcogen atom (165) phosphorus containing reactant
521/166521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (163) with nitrogen containing reactant (164) nitrogen reactant contains a c-xh group wherein x is a chalcogen atom and wherein the c atom is not double-bonded to a chalcogen atom (166) nitrogen reactant contains a nitrogen containing heterocyclic ring
521/167521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (163) with nitrogen containing reactant (164) nitrogen reactant contains a c-xh group wherein x is a chalcogen atom and wherein the c atom is not double-bonded to a chalcogen atom (167) nitrogen reactant contains a n-(c-c-o)-group
521/168521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (168) with phosphorus containing reactant
521/169521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (168) with phosphorus containing reactant (169) phosphorus reactant contains a -o-(c-c-o-)-group
521/170521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom
521/171521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom (171) -xh reactant contains a halogen atom
521/172521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom (172) -xh reactant contains a c=x group, e.g., carboxylic acid ester, etc.
521/173521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom (172) -xh reactant contains a c=x group, e.g., carboxylic acid ester, etc. (173) with non -c=x containing reactant
521/174521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom (174) -xh reactant contains a c-x-c group
521/175521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom (174) -xh reactant contains a c-x-c group (175) c-x-c reactant contains a carbohydrate group
521/176521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom (174) -xh reactant contains a c-x-c group (176) with non -c-x-c- containing reactant
521/177521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (155) cellular product derived from a -n=c=x containing reactant wherein x is a chalcogen atom (170) with -xh reactant wherein x is a chalcogen atom (174) -xh reactant contains a c-x-c group (177) c-x-c reactant contains a carbocyclic ring, e.g., aromatic, etc.
521/178521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (178) cellular product derived from a reactant containing two or more three membered heterocyclic rings wherein two of the ring members are carbon atoms and the remaining ring member is a chalcogen atom
521/179521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (178) cellular product derived from a reactant containing two or more three membered heterocyclic rings wherein two of the ring members are carbon atoms and the remaining ring member is a chalcogen atom (179) with -c(=x)-x containing reactant wherein x is a chalcogen atom
521/180521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (180) cellular product derived from a phenol, phenol ether, or inorganic phenolate reactant
521/181521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (180) cellular product derived from a phenol, phenol ether, or inorganic phenolate reactant (181) with reactant which is an aldehyde or aldehyde derivative
521/182521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (182) cellular product derived from a -c-c(=x)-x containing reactant wherein x is a chalcogen atom, e.g., phthalic acid, etc.
521/183521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (182) cellular product derived from a -c-c(=x)-x containing reactant wherein x is a chalcogen atom, e.g., phthalic acid, etc. (183) nitrogen containing reactant
521/184521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (182) cellular product derived from a -c-c(=x)-x containing reactant wherein x is a chalcogen atom, e.g., phthalic acid, etc. (183) nitrogen containing reactant (184) nitrogen reactant contains at least two amino nitrogen atoms
521/185521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (182) cellular product derived from a -c-c(=x)-x containing reactant wherein x is a chalcogen atom, e.g., phthalic acid, etc. (183) nitrogen containing reactant (184) nitrogen reactant contains at least two amino nitrogen atoms (185) carbocyclic reactant containing -c-c(=x)-x, e.g., containing carboxyl, etc.
521/186521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (186) cellular product derived from reactant which is an aldehyde or aldehyde derivative
521/187521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (186) cellular product derived from reactant which is an aldehyde or aldehyde derivative (187) nitrogen containing reactant
521/188521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (186) cellular product derived from reactant which is an aldehyde or aldehyde derivative (187) nitrogen containing reactant (188) nitrogen reactant contains a -n-c(=x)-n group wherein x is a chalcogen atom, e.g.,urea, etc.
521/189521 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (50) cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. (189) cellular product derived from reactant containing a carbon to chalcogen bond
521/901521 synthetic resins or natural rubbers -- part of the class 520 series/(901) cellular polymer containing a carbodiimide structure
521/902521 synthetic resins or natural rubbers -- part of the class 520 series/(902) cellular polymer containing an isocyanurate structure
521/903521 synthetic resins or natural rubbers -- part of the class 520 series/(903) cellular polymer having reduced smoke or gas generation
521/904521 synthetic resins or natural rubbers -- part of the class 520 series/(904) polyurethane cellular product having high resiliency or cold cure property
521/905521 synthetic resins or natural rubbers -- part of the class 520 series/(905) hydrophilic or hydrophobic cellular product
521/906521 synthetic resins or natural rubbers -- part of the class 520 series/(906) polyurethane cellular product containing unreacted flame-retardant material
521/907521 synthetic resins or natural rubbers -- part of the class 520 series/(907) nonurethane flameproofed cellular product
521/908521 synthetic resins or natural rubbers -- part of the class 520 series/(908) nucleating agent for cellular product
521/909521 synthetic resins or natural rubbers -- part of the class 520 series/(909) blowing-agent moderator, e.g., kickers, etc.
521/910521 synthetic resins or natural rubbers -- part of the class 520 series/(910) plural blowing agents for producing nonpolyurethane cellular products
521/911521 synthetic resins or natural rubbers -- part of the class 520 series/(911) surfactant for other than polyurethane cellular product
521/912521 synthetic resins or natural rubbers -- part of the class 520 series/(912) separated reactive materials utilized in preparing cellular product
521/913521 synthetic resins or natural rubbers -- part of the class 520 series/(913) cell forming in absence of external heat
521/914521 synthetic resins or natural rubbers -- part of the class 520 series/(914) polyurethane cellular product formed from a polyol which has been derived from at least two 1,2 epoxides as reactants
521/915521 synthetic resins or natural rubbers -- part of the class 520 series/(915) utilizing electrical or wave energy during cell forming process
521/916521 synthetic resins or natural rubbers -- part of the class 520 series/(916) cellular product having enhanced degradability
521/917521 synthetic resins or natural rubbers -- part of the class 520 series/(917) specialized mixing apparatus utilized in cell forming process
521/918521 synthetic resins or natural rubbers -- part of the class 520 series/(918) physical aftertreatment of a cellular product
521/919521 synthetic resins or natural rubbers -- part of the class 520 series/(919) sintered product
521/920521 synthetic resins or natural rubbers -- part of the class 520 series/(920) cellular product containing a dye or pigment
521/921521 synthetic resins or natural rubbers -- part of the class 520 series/(921) preparing a nonpolyurethane cellular particle from a nonparticulate material

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