Description: 522 synthetic resins or natural rubbers -- part of the class 520 series / 522 synthetic resins or natural rubbers -- part of the class 520 series/() synthetic resins (class 520, subclass 1) (1) compositions to be polymerized by wave energy wherein said composition contains a rate-affecting material; or compositions to be modified by wave energy wherein said composition contains a rate-affecting material; or processes of preparing or treating a solid polymer utilizing wave energy (6) compositions to be polymerized or modified by wave energy wherein said composition contains at least one specified rate-affecting material; or processes of preparing or treating a solid polymer utilizing wave energy in the presence of at least one specified rate-affecting material; e.g., nitrogen containing photosensitizer, oxygen containing photoinitiator, etc. wave energy in order to prepare a cellular product (7) contains two or more rate-affecting materials, at least one of which is specified (8) at least two specified rate-affecting materials containing keto group not part of a ring; or contains a nonspecified photoinitiator or photosensitizer and specified ketone containing material wherein the keto group is not part of a ring (10) with a tertiary amine specified rate-affecting material
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