Propylene polymerization cocatalyst containing silane and result

Details Propylene polymerization cocatalyst containing silane and result Propylene polymerization cocatalyst containing silane and result

1991-11-22

1993-03-09

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...

502125, 502127, 526125, C08F 4656

Patent

active

051927322

ABSTRACT:
A cocatalyst for use in association with a catalytic component comprising a titanium compound and an internal electron donor on a magnesium halide support for the polymerization of propylene alone or propylene with ethylene or a C.sub.4 to C.sub.12 alpha-olefin, said cocatalyst consisting essentially of an organic aluminum compound and an external electron donor consisting essentially of a non-aromatic silane with two Si--O--C bonds and a monoether and/or a silane with a single Si--O--C bond and the resultant catalyst wherein such cocatalyst is combined with a catalytic component known for use in polymerizing propylene.

REFERENCES:
patent: 4814314 (1989-03-01), Matsuura et al.
patent: 4829038 (1989-05-01), Hoppin et al.
patent: 5023223 (1991-06-01), Ebara et al.
patent: 5066737 (1991-11-01), Job
patent: 5077357 (1991-12-01), Job
patent: 5082907 (1992-01-01), Job

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