Supported catalysts for manufacture of polymers

Details Supported catalysts for manufacture of polymers Supported catalysts for manufacture of polymers

2006-06-22

2009-10-06

Wu, David (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S172000, C526S160000, C526S170000, C526S351000, C526S348000, C502S103000, C502S152000, C502S155000

Reexamination Certificate

active

07598328

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 hafnium complex of a polyvalent, Lewis base ligand; and optionally,3) an activating cocatalyst for the metal complex.

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