Organophosphonium and organoarsonium metathesis catalysts

Details Organophosphonium and organoarsonium metathesis catalysts Organophosphonium and organoarsonium metathesis catalysts

C - Chemistry, Metallurgy

08

G

402/570

C08G 61/08 (2006.01)

Patent

CA 2008778

ABSTRACT OF THE DISCLOSURE This invention pertains to the use of organophosphonium and organoarsonium molybdates and tungstates as catalysts in a metathesis catalyst system in polymerization of cycloolefin monomers by ring opening polymerization. Polymerization can be by reaction injection molding in absence of a solvent whereby a thermoset polymer is produced or by solution polymerization in presence of a suitable solvent whereby a thermosetting or a thermoplastic polymer is produced. The cycloolefin monomers are polycycloolefins containing at least one norbornane group, and mixtures thereof. 0669E/la

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