High unsaturation isobutylene-isoprene-cyclopentadiene...

Details High unsaturation isobutylene-isoprene-cyclopentadiene... High unsaturation isobutylene-isoprene-cyclopentadiene...

C - Chemistry, Metallurgy

08

F

400/1125, 402/33

C08F 210/12 (2006.01) C08F 8/34 (2006.01)

Patent

CA 1130047

ABSTRACT OF THE DISCLOSURE Substantially gel-free, high unsaturation copolymers of isobutylene and isoprene and high unsaturation terpolymers of iso- butylene, isoprene and cyclopentadiene having a number average molecular weight of at least about 90,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100°C.

301212

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