发明名称 |
PASSIVATED SUPPORTS FOR USE WITH OLEFIN POLYMERIZATION CATALYSTS |
摘要 |
A phosphinimine catalyst immobilized on a passivated inorganic oxide support, had high activity at low co-catalyst concentrations and gave, under gas phase polymerization conditions, ethylene copolymer with a high molecular weight. A method of making a passivated silica support involves treatment of silica with an organoaluminum compound, a diorganomagnesium compound and a source of chloride (to make MgCl2) under anhydrous conditions and in the absence of polar solvents. |
申请公布号 |
EP2788390(A4) |
申请公布日期 |
2015.07.29 |
申请号 |
EP20120854891 |
申请日期 |
2012.11.07 |
申请人 |
NOVA CHEMICALS (INTERNATIONAL) S.A. |
发明人 |
MORRISON, DARRYL, J.;BALTIMORE, AMY, MARIE;CARTER, CHARLES ASHTON GARRET |
分类号 |
C08F4/02;C08F2/34;C08F4/6592;C08F210/16 |
主分类号 |
C08F4/02 |
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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