发明名称 |
Catalysts for the preparation of elastomeric olefinic copolymers |
摘要 |
Catalysts for the preparation of copolymers of ethylene and/or alpha-olefins and optionally dienes, are obtained by reacting an Al-alkyl with a solid catalytic component comprising: (A) a magnesium compound containing at least an Mg-halogen bond; (B) a halogenated compound of at least partly trivalent Ti or V, containing at least a Ti-OR or V-OR bond, wherein the Mg/Ti(V), halogen/Ti(V), halogen/Mg and OR/Ti(V) atomic ratios are within determined ranges; and (C) an electron-donor compound. Elastomeric copolymers endowed with improved tension set values are obtained with said catalysts.
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申请公布号 |
US4886770(A) |
申请公布日期 |
1989.12.12 |
申请号 |
US19870103176 |
申请日期 |
1987.09.30 |
申请人 |
AUSIMONT SPA |
发明人 |
CUFFIANI, ILLARO;FABBRI, ROBERTO;MARGELLI, GIAN F.;ZUCCHINI, UMBERTO |
分类号 |
C08F4/62;C08F4/60;C08F4/639;C08F4/64;C08F210/16 |
主分类号 |
C08F4/62 |
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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