Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1990-10-01
1992-09-01
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...
502120, 526119, C08F 4654
Patent
active
051438836
ABSTRACT:
The present invention relates to a silica supported magnesium-containing catalytic precursor of reduced SiOH content for reaction with a titanium halide to form a catalyst for the production of a stereospecific alpha olefin polymer characterized in that prior to reacting with titanium halide the magnesium-containing silica is reacted with at least one titanium compound having the formula Ti(R).sub.n X.sub.m or Ti(OR).sub.n X.sub.m where R is aryl, alkyl, alkaryl, or mixtures thereof; X is halogen; n is an integer of 1 to 4, and m is 0 or an integer of 1 to 3 with the provision that the sum of n and m is 4. It also relates to preparing the catalyst from the precursor.
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Ser. No. 498,308 Buehler (pending) Mar. 23, 1990.
Ser. No. 569,688 Buehler et al. (pending) Aug. 20, 1990.
Buehler Charles K.
Fries Richard W.
Pullukat Thomas J.
Garvin Patrick P.
Jackson Richard G.
Quantum Chemical Corporation
Tremain Kenneth D.
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