Olefin polymerization process

Details Olefin polymerization process Olefin polymerization process

2007-09-04

2010-02-02

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...

C526S161000, C526S348000, C526S348500, C526S348600, C526S134000, C526S130000, C526S126000, C526S127000, C526S905000

Reexamination Certificate

active

07655740

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 indeno[1,2-b]indolyl zirconium complex. The process produces polyethylene characterized by good incorporation of the α-olefin and moderate long-chain branching. The process is capable of forming high molecular weight polyethylene and has good catalyst activity.

REFERENCES:
patent: 5153157 (1992-10-01), Hlatky et al.
patent: 5198401 (1993-03-01), Turner et al.
patent: 5241025 (1993-08-01), Hlatky et al.
patent: 5414180 (1995-05-01), Geerts et al.
patent: 5648440 (1997-07-01), Sugano et al.
patent: 6211311 (2001-04-01), Wang et al.
patent: 6232260 (2001-05-01), Nagy et al.
patent: 6451724 (2002-09-01), Nifant'ev et al.
patent: 6559251 (2003-05-01), Mack et al.
patent: 6838410 (2005-01-01), Wang et al.
patent: 6908972 (2005-06-01), Tsuie et al.
patent: 7196147 (2007-03-01), Wang et al.
patent: 2007/0293639 (2007-12-01), Nagy et al.
patent: 2009/0061135 (2009-03-01), Wang et al.
patent: WO 2005/000920 (2005-01-01), None
patent: WO 2005/005499 (2005-01-01), None
Stadler, et al., “Influence of Type and Content of Various Comonomers on Long-Chain Branching of Ethene/α-Olefin Copolymers”,Macromolecules 39(2006) 1474-1482.

Affiliated with

Also associated with

Rating

Olefin polymerization process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Olefin polymerization process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Olefin polymerization process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4160954