Process for producing polybutadiene

Details Process for producing polybutadiene Process for producing polybutadiene

C - Chemistry, Metallurgy

08

F

C08F 136/06 (2006.01) C08F 4/70 (2006.01)

Patent

CA 2208669

A high cis-1,4-polybutadiene is produced, with a reduced gel formation, by preparing a catalyst from (A) a cobalt compound, (B) a trialkyl (C1-10) aluminum compound, (C) a halide compound selected from those of the formulae (1) and (2): AlR2m X3-m(1), R3-X(2), wherein R2 = C1-10 hydrocarbon, X = halogen, m = 0 to 2, R3 = C1-40 hydrocarbon, and (D) water in an amount of 0.77 to 1.45 moles per mole of total A1 in the component (B) and (C); and polymerizing 1,3-butadiene in the presence of the resultant catalyst in a polymerization medium including an alkane, cycloalkane and/or olefin hydrocarbon.

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