Dual donor catalyst system for the polymerization of olefin

Details Dual donor catalyst system for the polymerization of olefin Dual donor catalyst system for the polymerization of olefin

1996-12-19

2000-08-29

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 90, 526116, 5261231, 5261245, 5261253, 5263483, 5263484, 5263486, 526351, 526352, 525268, 525270, C08F 4616

Patent

active

061110396

ABSTRACT:
The present invention provides a catalyst system that exhibits unexpected control of desired properties in polyolefin products. The catalyst system includes a titanium-supported catalyst in combination with a mixture of tetraethoxysilane (TEOS) and dicyclopentyldimethoxy-silane (DCPMS). This catalyst system has been found to be effective in making polypropylene and polypropylene copolymers having relatively high melt flow rates and moderately broad molecular weight distribution.

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