发明名称 |
alpha -olefins and olefin polymers and processes therefor |
摘要 |
Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microsructure, which give some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear alpha -olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected alpha -diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected alpha -diimine nickel complexes with ethylene.
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申请公布号 |
US5891963(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19970891442 |
申请日期 |
1997.07.10 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY;UNIVERSITY OF NORTH CAROLINA |
发明人 |
BROOKHART, MAURICE S.;JOHNSON, LYNDA KAYE;KILLIAN, CHRISTOPHER MOORE;ARTHUR, SAMUEL DAVID;MCCORD, ELIZABETH FORRESTER;MCLAIN, STEPHAN JAMES |
分类号 |
B01J31/00;B01J37/00;C07C2/32;C07C69/52;C07C251/08;C07F7/00;C07F15/00;C07F19/00;C08F4/02;C08F4/06;C08F4/60;C08F4/70;C08F4/80;C08F10/00;C08F10/02;C08F10/06;C08F10/08;C08F12/30;C08F20/06;C08F110/02;C08F110/06;C08F110/14;C08F132/04;C08F210/02;C08F210/14;C08F210/16;C08F220/10;C08F232/00;C08F232/04;C08F255/00;C08L23/02;(IPC1-7):C08F255/00 |
主分类号 |
B01J31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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