Olefin polymerization process

Details Olefin polymerization process Olefin polymerization process

2007-09-04

2010-02-23

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S161000, C526S160000, C526S170000, C526S348000, C526S348200, C526S348500, C526S348600, C526S352000

Reexamination Certificate

active

07666961

ABSTRACT:
A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin and a catalyst comprising an activator and a supported bridged bis-indeno[2,1-b]indolyl zirconium complex. The process uses a highly active catalyst and provides polyethylene characterized by a high level of long-chain branching.

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Stadler, et al., “Influence of Type and Content of Various Comonomers on Long-Chain Branching of Ethene/α-Olefin Copolymers”,Macromolecules39 (2006) 1474-1482.

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