Method of preparing syndiotactic 1,2-polybutadiene with a...

Details Method of preparing syndiotactic 1,2-polybutadiene with a... Method of preparing syndiotactic 1,2-polybutadiene with a...

C - Chemistry, Metallurgy

08

F

C08F 4/69 (2006.01) C08F 136/06 (2006.01)

Patent

CA 2286494

A process for polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene is described using a catalyst system comprising (a) a chromium-containing compound, (b) an organoaluminum hydride, and (c) a hydrogen phosphite. The use of the catalyst system avoids the use of environmentally detrimental components such as carbon disulfide and halogenated solvents. The syndiotactic 1,2-polybutadiene can be used as a plastic or as an additive for rubber compositions wherein it can crosslink with conventional rubbers using conventional crosslinking agents.

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