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公开(公告)号:US5895803A
公开(公告)日:1999-04-20
申请号:US881844
申请日:1997-06-25
IPC分类号: C08F210/06 , C08F210/16 , C08F210/08 , C08F210/02
CPC分类号: C08F210/06 , C08F210/16
摘要: Statistical propylene copolymer containing 0.2-0.9% by weight monomeric units derived from ethylene; 13-21% by weight monomeric units derived from .alpha.-olefin having 4-10 carbon atoms, and 78.1-86.8% by weight monomeric units derived from propylene. The copolymer has a melting point of 115-125.degree. C.; a proportion of polymer soluble in boiling heptane greater than or equal to 95% by weight, and a proportion of polymer soluble in cold xylene (25.degree. C.) greater than 40% by weight.
摘要翻译: 含有0.2-0.9重量%衍生自乙烯的单体单元的统计丙烯共聚物; 13-21重量%衍生自具有4-10个碳原子的α-烯烃的单体单元和78.1-86.8重量%衍生自丙烯的单体单元。 该共聚物的熔点为115-125℃。 可溶于沸腾庚烷的聚合物的比例大于或等于95重量%,可溶于冷二甲苯(25℃)的聚合物的比例大于40重量%。