Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1996-12-20
1998-12-15
Bell, Mark L.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502127, 5261253, B01J 3100, B01J 3700, C08F 402, C08F 460
Patent
active
058496556
ABSTRACT:
A method of forming a polyolefin catalyst component which includes chlorinating magnesium ethoxide, and then treating the product first with an electron donor, particularly diethyl phthalate or di-isobutyl phthalate, at a relatively low donor level, and then second with a titanating agent, such as titanium tetrachloride, to produce a catalyst component. The catalyst component is activated with an aluminum alkyl cocatalyst. An external electron donor, such as an organosilane compound, is added for stereoselectivity control. The activated catalyst is used in the polymerization of olefins, particularly propylene, to obtain a polymer product with a broad molecular weight distribution.
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Bauch Christopher Garland
Rauscher David John
Shamshoum Edwar Shoukri
Bell Mark L.
Cheairs M. Norwood
Fina Technology, Inc.
Pasterczyk J.
Wheelington Jim
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