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公开(公告)号:US08026323B2
公开(公告)日:2011-09-27
申请号:US11788258
申请日:2007-04-19
Applicant: Sudhin Datta , Bruce A. Harrington , Weiguo Hu , Periagaram S. Ravishankar , George Rodriguez
Inventor: Sudhin Datta , Bruce A. Harrington , Weiguo Hu , Periagaram S. Ravishankar , George Rodriguez
IPC: C08F4/52 , C08F4/64 , C08F4/76 , C08F201/06
CPC classification number: C08F210/16 , C08F4/65908 , C08F4/65912 , C08F210/06 , Y10S526/941 , Y10S526/943 , C08F2/06 , C08F4/65927 , C08F2500/21 , C08F2500/20 , C08F2500/15 , C08F2500/17
Abstract: Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolymers are made in the presence of a metallocene catalyst.
Abstract translation: 描述了基本上不含二烯的乙烯丙烯共聚物。 共聚物在共聚物链之间具有均匀分布的立构规整度和共聚单体。 此外,共聚物将显示统计学上不明显的立构规整度的分子内差异。 共聚物在茂金属催化剂的存在下制备。