Sequential coupling in formation of resinous block copolymers

Details Sequential coupling in formation of resinous block copolymers Sequential coupling in formation of resinous block copolymers

C - Chemistry, Metallurgy

08

F

400/2002

C08F 297/04 (2006.01) C08F 295/00 (2006.01) C08G 81/02 (2006.01)

Patent

CA 2039379

A method for preparing resinous copolymers by sequential charge copolymerization of at least two charges, at least one being a conjugated diene and at least one being a monovinylarene; followed by a charge of a polyfunctional coupling agent; and the final charge being an essentially difunctional coupling agent.

Méthode pour préparer des copolymères résineux par copolymérisation séquentielle d'au moins deux charges, l'une au moins étant une diène conjuguée et au moins une autre du monovinylarène, suivie par une charge d'un agent de combinaison polyfonctionnel, la charge finale étant constituée principalement d'un agent de combinaison difonctionnel.

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