Pure tungsten oxyphenolate complexes as DCPD polymerization cata

Details Pure tungsten oxyphenolate complexes as DCPD polymerization cata Pure tungsten oxyphenolate complexes as DCPD polymerization cata

1991-10-18

1994-06-07

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526126, 526128, 526139, 526141, 526142, 526161, 526163, 526166, 526 77, 526281, 526282, 526283, 502102, 502117, 2643282, C08F 478, C08G 6108

Patent

active

053190424

ABSTRACT:
This invention relates to a two component catalyst system for the polymerization of metathesis polymerizable cycloolefins, comprising (a) a tungsten compound of the formula WOX.sub.4-x (OAr).sub.x where X is chlorine, bromine or fluorine, Ar is a hindered phenyl ring having 1-5 specified substituents and x = 1, 2 or 3; and (b) an activator compound.
Among the preferred molecules or groups that are substituted on the phenyl ring of the tungsten compound are phenyl, chlorine, bromine, methoxy and isopropyl groups. Ar can also represent a multi-substituted phenyl group such as 2,4-dichloro-6-methylphenyl.

REFERENCES:
patent: 4239874 (1980-12-01), Ofstead et al.
patent: 4550216 (1985-10-01), Basset et al.
patent: 4727125 (1988-02-01), Nelson
patent: 4729976 (1988-03-01), Sjardijn et al.
patent: 4748216 (1988-05-01), Tom
patent: 4810762 (1989-03-01), Sjardijn et al.
patent: 4861848 (1989-08-01), Basset et al.
patent: 4994426 (1991-02-01), Sjardijn et al.
patent: 5028672 (1991-07-01), Sjardijn et al.
patent: 5071812 (1991-12-01), Kelsey
patent: 5081208 (1992-01-01), Sjardijn
patent: 5082909 (1992-01-01), Bell
patent: 5093441 (1992-03-01), Sjardijn et al.
patent: 5095082 (1992-03-01), Kelsey

Affiliated with

Also associated with

Rating

Pure tungsten oxyphenolate complexes as DCPD polymerization cata does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pure tungsten oxyphenolate complexes as DCPD polymerization cata, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pure tungsten oxyphenolate complexes as DCPD polymerization cata will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-793407