Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1990-04-30
1992-06-30
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502115, 502119, 502120, 526125, C08F 464
Patent
active
051263025
ABSTRACT:
A solid catalyst component, a method of making the same, a catalyst system incorporating the solid catalyst component, and a method of polymerizing one or more 1-olefins using the catalyst system are disclosed wherein the catalyst component is prepared by contacting, in the presence of an inert liquid hydrocarbon, silica, a soluble organomagnesium compound, an SiCl.sub.4 magnesium fixing agent, an alcohol, TiCl.sub.4, a carboxylic acid derivative, followed by extraction with a TiCl.sub.4 -containing extraction liquid. The inventive catalyst system allows ready control of product molecular weight by control of hydrogen concentration in the reactor, and allows the production of high MI or MF polymers at high productivities.
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Garvin Patrick P.
Peebles Brent M.
Quantum Chemical Corporation
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