Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1988-04-25
1989-09-12
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...
502118, 502121, 502122, 502123, 502124, 502125, 502126, 502127, 502133, C08F 464
Patent
active
048660221
ABSTRACT:
A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonate or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing solution by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic ether; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor.
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Arzoumanidis Gregory G.
Johnson Bryce V.
Karayannis Nicholas M.
Khelghatian Habet M.
Lee Sam S.
Amoco Corporation
Garvin Patrick P.
Magidson William H.
Medhurst Ralph C.
Oliver Wallace L.
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