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US3476720A Vulcanizable copolymers of at least one of monoalkenyl cyclopentenes,monoalkenyl cycloalkenyloctenes and their alkyl derivatives 失效
单烯醇环戊二烯,单烷基环己烯酮和它们的衍生物的单体共聚物

Vulcanizable copolymers of at least one of monoalkenyl cyclopentenes,monoalkenyl cycloalkenyloctenes and their alkyl derivatives
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