Supported catalysts for manufacture of polymers
AssigneeDow Global Technologies LLC
InventorsJoseph N. Coalter, III, Jan W. Van Egmond, Lewis J. Fouts, Jr., Roger B. Painter, Paul C. Vosejpka
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Abstract
A supported catalyst composition and process for preparing high molecular weight polymers of one or more addition polymerizable monomers, especially propylene, said composition comprising: 1) a substrate comprising the reaction product of a solid, particulated, high surface area, metal oxide, metalloid oxide, or a mixture thereof and an organoaluminum compound, 2) a Group 4 metal complex of a polyvalent, Lewis base ligand; and optionally, 3) an activating cocatalyst for the metal complex.
Claims12
A supported, heterogeneous catalyst composition for use in polymerization of addition polymerizable monomers, comprising:
- 1) a substrate comprising the reaction product of a solid, particulated, high surface area, metal oxide, metalloid oxide, or a mixture thereof and an organoaluminum compound,
- 2) a Group 4 metal complex of a polyvalent, Lewis base ligand selected from the group consisting of:
- wherein X each occurrence is halide, N,N-dimethylamido, or C1-4 alkyl;
- and optionally,
- 3) an activating cocatalyst for the metal complex.
Dependencies are inferred from the claim text.