C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 53/02 (2006.01) C08F 236/10 (2006.01) C08L 9/06 (2006.01)
Patent
CA 2051921
Elastomer compositions comprising (A) ultra high molecular weight copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 1,000,000 and (B) oil are described. The ultra high molecular weight copolymer compositions which are also characterized as having an intrinsic viscosity in tetrahydrofuran of at least about 4.0 may be obtained by a process which comprises polymerizing a 1,3-conjugated diene and a vinyl aromatic compound in a hydrocarbon solvent in the presence of a trimetalated 1-alkyne catalyst which comprises the reaction product of a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound R°M and a 1,3-conjugated diene wherein R° is a hydrocarbyl group, M is an alkali metal, the mole ratio of R°M to 1-alkyne is about 3:1 and the mole ratio of conjugated diene to 1-alkyne is from about 2:1 to about 30:1. The oil extended elastomer compositions of the present invention preferably contain large amounts of oil such as 80 parts or higher per 100 parts of copolymer.
Hashimoto Takatsugu
Kang Jung W.
Seaver Gary B.
Bridgestone Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
Oil extended ultra high molecular weight elastomers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oil extended ultra high molecular weight elastomers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil extended ultra high molecular weight elastomers will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1631850