Gel reduction in high cis-1,4-polybutadiene production process

Details Gel reduction in high cis-1,4-polybutadiene production process Gel reduction in high cis-1,4-polybutadiene production process

C - Chemistry, Metallurgy

08

F

C08F 136/06 (2006.01)

Patent

CA 2342184

A process for the production of cis-1,4-polybutadiene having a low level of gel content is described. The process comprises polymerizing 1,3-butadiene in the presence of a catalyst and a polymerization diluent. The polymerization diluent comprises an organic solvent and water particles having a median particle size less than or equal to about 10 µm. By controlling the mean particle size of the water present in the diluent, the level of gel content in the polymer product may be reduced.

L'invention porte sur un procédé de production de cis-1,4-polybutadiène ayant une faible teneur en gel. Ce procédé consiste à polymériser 1,3 butadiène en présence d'un catalyseur et d'un diluant de polymérisation. Le diluant de polymérisation comprend un solvant organique et des particules d'eau dont la taille moyenne est inférieure ou égale à environ 10µm. En régulant la taille moyenne des particules de l'eau présente dans le diluant, la teneur en gel du produit polymère peut être réduite.

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