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公开(公告)号:US4634741A
公开(公告)日:1987-01-06
申请号:US806552
申请日:1985-12-09
摘要: Improved halogenated butyl rubbers are prepared by isomerizing the polymers so that a significant mole fraction of the halogen is in the primary allylic position. The isomerization is carried out utilizing as a catalyst either a Friedel Crafts catalyst or HBr.
摘要翻译: 改进的卤代丁基橡胶通过使聚合物异构化制备,使得卤素的显着摩尔分数处于初级烯丙基位置。 使用Friedel Crafts催化剂或HBr作为催化剂进行异构化。
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公开(公告)号:US4632963A
公开(公告)日:1986-12-30
申请号:US597187
申请日:1984-04-05
申请人: Irwin J. Gardner , James V. Fusco , Neil F. Newman , Ronald C. Kowalski , William M. Davis , Francis P. Baldwin
发明人: Irwin J. Gardner , James V. Fusco , Neil F. Newman , Ronald C. Kowalski , William M. Davis , Francis P. Baldwin
IPC分类号: C08L23/28 , C08F8/00 , C08F8/18 , C08F8/20 , C08F8/48 , C08L1/00 , C08L21/00 , C08L23/00 , C08L23/26 , C08L27/00 , C08L101/00 , C08F8/22
摘要: An improved halogenated butyl rubber wherein the polymer has a conjugated diene content of less than 0.25 mole % and a halogen content of at least 0.6 wt. %; at least 20 mole % of the halogen being in a primary allylic configuration.
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