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21.Process for preparing isoolefindiolefin copolymers of uniform average composition 失效
Title translation: 制备均匀平均组成的异吲哚二烯共聚物的方法公开(公告)号:US2583504A
公开(公告)日:1952-01-22
申请号:US68214446
申请日:1946-07-08
Applicant: STANDARD OIL DEV CO
Inventor: YOUNG DAVID W , SPARKS WILLIAM J , GARBER JOHN D
IPC: C08F36/04