Process for preparing copolymers

Details Process for preparing copolymers Process for preparing copolymers

C - Chemistry, Metallurgy

08

F

402/444, 402/465

C08F 4/70 (2006.01) C08F 236/04 (2006.01) C08F 236/06 (2006.01) C08F 238/00 (2006.01) C08F 238/02 (2006.01)

Patent

CA 1210196

PROCESS FOR PREPARING COPOLYMERS Abstract of the Disclosure: The invention provides a process for preparing copolymers of acetylene and conjugated diene compounds by copolymerization in the presence of a catalyst composition in a reactor. The catalyst composition comprises a dialkyl aluminum halide, an organic nickel compound and an active hydrogen compound, of which the molar concen- trations have the following relationships: [Al] = 2[Ni] + [H] [Al]/[Ni]>4 wherein [Al], [Ni] and [H] represent respectively the molar concentrations of the dialkyl aluminum halide, of the organic nickel compound and of the active hydrogen compound. Using this catalyst copolymers can be obtained in a good yield without the by-production of any gel material.

378985

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