发明名称 |
Catalyst precursor production. |
摘要 |
<p>Normally sparingly soluble magnesium alkoxide is solubilized in alkanol by the additional presence of certain acidic materials. The resulting solution is used to prepare a mixture of substantially spherical particles, substantially free of fines, containing an adduct magnesium alkoxide. The particles are converted by conventional methods to a procatalyst precursor of an olefin polymerization catalyst of high activity and high selectivity to stereoregular polymer whenever appropriate.</p> |
申请公布号 |
EP0461775(A2) |
申请公布日期 |
1991.12.18 |
申请号 |
EP19910304680 |
申请日期 |
1991.05.23 |
申请人 |
SHELL OIL COMPANY |
发明人 |
JOB, ROBERT CHARLES;ZILKER, DANIEL PAUL, JR.;CHADWICK, JOHN CLEMENT |
分类号 |
C08F4/02;C07C31/30;C08F4/00;C08F4/60;C08F4/654;C08F4/658;C08F10/00 |
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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