Process and catalyst for the preparation of syndiotactic...

Details Process and catalyst for the preparation of syndiotactic... Process and catalyst for the preparation of syndiotactic...

C - Chemistry, Metallurgy

08

F

252/102, 402/440

C08F 136/06 (2006.01) C08F 4/62 (2006.01)

Patent

CA 1276621

Process and catalyst for the preparation of syndiotactic 1,2-polybutadiene A b s t r a c t Syndiotactic 1,2-polybutadiene of high quality may be obtained in excellent yield by solution polymerisation of butadiene-(1,3) in hydrocarbons, using organometallic mixed catalysts composed of trialkylaluminium, hydrocarbon- soluble chromium-III compounds and a dialkylphosphite corresponding to the formula Image wherein R denotes straight chained or branched C1-C8-alkyl and R1, R2 and R3 denote methyl or ethyl or R and R1 together form a methylene group.

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