Production of propylene-based polymers

Details Production of propylene-based polymers Production of propylene-based polymers

2008-01-18

2010-10-12

Lu, Caixia (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S160000, C526S165000, C526S172000, C526S351000, C526S943000, C502S103000, C502S152000, C502S155000

Reexamination Certificate

active

07812104

ABSTRACT:
In a process for producing a propylene-based olefin homopolymer or copolymer, a monomer composition comprising propylene is contacted with a polymerization catalyst system under homogeneous polymerization conditions (such as solution, supersolution or supercritical conditions), wherein the polymerization catalyst system includes an activator and a bridged bis-indenyl transition metal (group 4) compound substituted with a carbazole (unsubstituted or substituted) at the 4 position.

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