Cycloolefin (co)polymers with a narrow molecular weight distribu

Details Cycloolefin (co)polymers with a narrow molecular weight distribu Cycloolefin (co)polymers with a narrow molecular weight distribu

1993-11-22

1995-06-06

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526127, 526133, 526134, 526160, 526165, 526308, 525210, 525216, C08F 3208, C08F 3204, C08L 4500

Patent

active

054224098

ABSTRACT:
Polymers of polycyclic olefins such as, for example, norbornene or tetracyclododecene, or copolymers of polycyclic olefins with cycloolefins and/or 1-olefins with a very narrow molecular weight distribution are obtained without ring opening by a polymerization in which a catalyst which is composed of an aluminoxane and of a stereorigid, chiral metallocene compound of an element of groups IVb to VIb is used, and in which the reaction is stopped at a time when the molecular weight distribution Mw/Mn of the polymer formed is <2.

REFERENCES:
patent: 4178424 (1979-12-01), Tenney et al.
patent: 4918133 (1990-04-01), Moriya et al.
patent: 5008356 (1991-04-01), Ishimaru et al.
patent: 5087677 (1992-02-01), Brekner et al.
Patent Abstracts of Japan, vol. 11, No. 60 (C-405)(2507) 24 Feb. 1987 and JP-A-61 221 206 (Mitsui Petrochemical Industries) 1 Oct. 1986.

Affiliated with

Also associated with

Rating

Cycloolefin (co)polymers with a narrow molecular weight distribu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cycloolefin (co)polymers with a narrow molecular weight distribu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cycloolefin (co)polymers with a narrow molecular weight distribu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-988354