Process for the copolymerization of ethylene

Details Process for the copolymerization of ethylene Process for the copolymerization of ethylene

2003-02-10

2009-08-04

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, C526S352000, C526S348600, C526S348500, C526S348200

Reexamination Certificate

active

07569648

ABSTRACT:
A process for producing a polymer of ethylene containing from 0.1 to 50% by weight of one or more derived units of alpha-olefins fo formula CH2═CHR, wherein R is a C2-C20alkyl radical, comprising contacting, under polymerization conditions, ethylene and one or more alpha-olefins in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I) wherein: M is zirconium titanium or hafminum, X, equal to or different from each other, is hydrogen halogen or an hydrocarbyl radical, R1, R2, R3, R4, R5, R6, R7, R8and R9, equal to or different from each other are hydrogen atoms, halogen atoms, or hydrocarbyl radicals; and b) an alumoxane or a compound capable of forming an alkyl metallocene cation.

REFERENCES:
patent: 5698487 (1997-12-01), Sacchetti et al.
patent: 6399533 (2002-06-01), Sacchetti et al.
patent: 6423660 (2002-07-01), Albizzati et al.
patent: 6444604 (2002-09-01), Albizzati et al.
patent: 6559252 (2003-05-01), Horton et al.
patent: 6608224 (2003-08-01), Resconi et al.
patent: 6627710 (2003-09-01), Sacchetti et al.
patent: 6774194 (2004-08-01), Albizzati et al.
patent: 6787619 (2004-09-01), Dall'Occo et al.
patent: 6822106 (2004-11-01), Dall'Occo et al.
patent: 6841501 (2005-01-01), Resconi et al.
patent: 6864333 (2005-03-01), Dall'Occo et al.
patent: 6878786 (2005-04-01), Resconi et al.
patent: 6953829 (2005-10-01), Kratzer et al.
patent: 7002031 (2006-02-01), Resconi et al.
patent: 7041750 (2006-05-01), Covezzi et al.
patent: 7101940 (2006-09-01), Schottek et al.
patent: 7112638 (2006-09-01), Nifant'ev et al.
patent: 7141527 (2006-11-01), Van Baar et al.
patent: 2003/0008984 (2003-01-01), Kratzer et al.
patent: 2003/0013913 (2003-01-01), Schottek et al.
patent: 2006/0235173 (2006-10-01), Resconi
patent: 19962814 (2001-06-01), None
patent: 19962910 (2001-07-01), None
patent: 0633272 (1995-01-01), None
patent: 1173445 (2002-01-01), None
patent: 9102012 (1991-02-01), None
patent: 9200333 (1992-01-01), None
patent: 9532995 (1995-12-01), None
patent: 9921899 (1999-05-01), None
patent: 0078820 (2000-12-01), None
patent: 0121674 (2001-03-01), None
patent: 0144319 (2001-06-01), None
patent: 0147939 (2001-07-01), None
patent: 0148039 (2001-07-01), None
patent: 0148040 (2001-07-01), None
patent: WO 01/47939 (2001-07-01), None
patent: 03/057705 (2003-07-01), None
patent: 2004/099269 (2004-11-01), None
patent: 2005/095468 (2005-10-01), None
patent: 2005/095473 (2005-10-01), None
patent: 2005/095474 (2005-10-01), None
patent: 2006/005648 (2006-01-01), None

Affiliated with

Also associated with

Rating

Process for the copolymerization of ethylene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the copolymerization of ethylene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the copolymerization of ethylene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4096034