Precipitation of polymeric cycloolefins

Details Precipitation of polymeric cycloolefins Precipitation of polymeric cycloolefins

C - Chemistry, Metallurgy

08

F

402/398

C08F 6/12 (2006.01) C08G 61/08 (2006.01)

Patent

CA 1222595

ABSTRACT OF THE DISCLOSURE Process for precipitating a polycycloolefin from polymer cement comprising mixing said cement with a sufficient amount of a lower alcohol and water precipi- tant to cause said polymer to precipitate, and separating said polymer from the remaining liquid phase, the polymer cement having about 15 to 80% solids concentration and being a honey-like solution in a nonpolar hydrocarbon solvent of a polymer formed by ring opening polymeriza- tion of at least one monomer containing at least one norbornene group. The precipitation process can be either batch or continuous throughout.

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