发明名称 |
High efficiency, high temperature catalyst for polymerizing olefins |
摘要 |
Compositions exhibiting high catalytic activity in the polymerization of alpha -olefins at temperatures above 140 DEG C. are provided by reacting a transition metal compound such as tetra(isopropoxy)titanium, an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum, e.g., di-n-butylmagnesium.x triethylaluminum and a hydrogen halide or an active hydrocarbyl halide such as t-butyl chloride. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics.
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申请公布号 |
US4314912(A) |
申请公布日期 |
1982.02.09 |
申请号 |
US19800187676 |
申请日期 |
1980.09.16 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
LOWERY, JR., KIRBY;KNIGHT, GEORGE W.;MAY, JR., JAMES A. |
分类号 |
C08F10/00;(IPC1-7):C08F4/64 |
主分类号 |
C08F10/00 |
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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