C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/2004, 402/40
C08F 210/02 (2006.01) C08F 232/08 (2006.01) C08F 255/02 (2006.01) C08F 277/00 (2006.01)
Patent
CA 1278899
Abstract of the Disclosure A random copolymer characterized in that (A) the copolymer comprises polymerized units from ethylene and polymerized units from at least one cycloolefin, (B) the mole ratio of the polymerized units from the cycloolefin to the polymerized units from ethylene is from 3:97 to 60:40, (C) the cycloolefin is incorporated in the polymer chain without ring opening, (D) the copolymer has an intrinsic viscosity of 0.01 to 20 dl/g, (E) the copolymer has a molecular weight distribution (Mw/Mn) of not more than 4, and (F) the copolymer has a crystallinity of 0 to 10%. The random copolymer may be grafted by (a) alpha, beta-unsaturated carboxylic acids and/or their deriv- atives, (b) styrenes, (c) organic silicon compounds having an olefinically unsaturated bond and a hydrolyzable group, or (d) unsaturated epoxy monomers. The random copolymer is produced by continuously copolymerizing ethylene with at least one cycloolefin in a hydrocarbon medium in the presence of a catalyst formed from a soluble vanadium compound and an organoaluminum compound while maintaining the atomic ratio of vanadium atoms to aluminum atoms in the reaction system, V/Al, at 2 or higher.
509694
Kajiura Hirokazu
Minami Syuji
Oda Hidekuni
Yamaguchi Hideaki
Mitsui Chemicals Inc.
Smart & Biggar
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