公开(公告)号：US4371680A

公开(公告)日：1983-02-01

申请号：US708718

申请日：1968-01-22

申请人： Warren N. Baxter ,  Nicholas G. Merckling, deceased ,  by Noelle K. Masukawa, administratrix ,  Ivan M. Robinson ,  Gelu S. Stamatoff

发明人： Warren N. Baxter ,  Nicholas G. Merckling, deceased ,  by Noelle K. Masukawa, administratrix ,  Ivan M. Robinson ,  Gelu S. Stamatoff

IPC分类号： C08F4/64 ,  C08F10/06 ,  C08F4/68 ,  C08F210/02

CPC分类号： C08F10/06

摘要： A process is disclosed for the polymerization and interpolymerization of propylene, either alone or in admixture with ethylene, to produce polymers and copolymers of propylene. The catalyst employed is a coordination complex comprising at least some divalent titanium, or other transition metal element in lower valent state. The catalysts are prepared by mixing a higher valent titanium (or other transition metal) halide or titanate ester with a reducing agent, which can be any organometallic compound, such as a metal alkyl or aryl, including Grignard reagents, a metal hydride, or a metal including zinc and metals above zinc in the electromotive series. Hydrocarbon media can be employed advantageously for the preparation of the cataysts and for the polymerizations. The polymeric products (both homopolymers and copolymers) are linear and of high molecular weight and are useful as plastics, fibers and elastomers and for production of blends with polyethylene.

摘要翻译： 公开了用于单独或与乙烯混合的丙烯的聚合和共聚的方法，以产生丙烯的聚合物和共聚物。 所使用的催化剂是包含至少一些二价钛或其它低价态的过渡金属元素的配位络合物。 通过将较高价的钛（或其它过渡金属）卤化物或钛酸酯与还原剂混合制备催化剂，还原剂可以是任何有机金属化合物，例如金属烷基或芳基，包括格氏试剂，金属氢化物或 金属包括锌和金属以上锌在电动系列。 烃介质可以有利地用于制备催化剂和聚合。 聚合产物（均聚物和共聚物均为线性的和高分子量的），可用作塑料，纤维和弹性体，并用于生产与聚乙烯的共混物。