Copolymers of norbornene-type cycloolefins

Details Copolymers of norbornene-type cycloolefins Copolymers of norbornene-type cycloolefins

C - Chemistry, Metallurgy

08

G

402/440

C08G 61/08 (2006.01)

Patent

CA 1281497

CYCLOOLEFIN COPOLYMERIZATION METHOD, REACTANT COMPOSITION, AND POLYMER Abstract of the Disclosure The glass transition temperature of thermoset polymers of norbornene type monomers--particularly those of dicyclo- pentadiene is improved by copolymerizing the monomer with a functional comonomer. The functional comonomer can be one having a polar substituent, one that has four or more rings in the monomer structure, or one that would ordinarily homo- polymerize to a polymer having a higher glass transition. Such monomers can also act as polymerization inhibitors to delay the onset of cross-linking to allow for easier handling of the monomers after combining them with polymerization acti- vators and catalysts.

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