Process for the preparation of ethylene-propylene-butadiene...

Details Process for the preparation of ethylene-propylene-butadiene... Process for the preparation of ethylene-propylene-butadiene...

C - Chemistry, Metallurgy

08

F

402/419

C08F 210/16 (2006.01) C08F 210/02 (2006.01) C08F 210/06 (2006.01)

Patent

CA 1046196

ABSTRACT OF THE DISCLOSURE This invention relates to the preparation of ethylene-propylene-butadiene terpolymers and more particularly to the catalyst system as used in the polymerization reaction, this system consisting of a mixture comprising: a) one or more vanadium compounds soluble in the polymerization solvent medium b) one or more halogenated organic-aluminium com- pounds c) one or more Lewis or Bronsted compounds d) one or more compounds amongst organic compounds containing the group CX3, thionyl chloride and hexachlorocyclopentadiene. By using said catalyst system amorphous or sub- stantially amorphous terpolymers are obtained in a very high yield, which renders any purification step superfluous.

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