Catalyst mixture and polymerisable composition

Details Catalyst mixture and polymerisable composition Catalyst mixture and polymerisable composition

C - Chemistry, Metallurgy

08

G

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

Patent

CA 2247630

A mixture of at least one thermal carbene-free ruthenium catalyst A and at least one thermal ruthenium carbene catalyst B, both of which initiate the ring-opening metathesis polymerisation on their own, said catalysts being present in a weight ratio of A to B from 10:1 to 1:10. By adding this mixture even in small amounts, the ring-opening metathesis polymerisation of strained cycloolefins can be effectively catalysed.

Mélange d'au moins un catalyseur A thermique ruthénium exempt de carbène et d'au moins un catalyseur B thermique carbène de ruthénium, les deux catalyseurs déclenchant seuls la polymérisation par métathèse d'ouverture de cycle et étant présents selon un rapport de poids entre A et B de 10:1 à 1:10. L'apport de ce mélange, même en petites quantités, permet de catalyser efficacement la polymérisation par métathèse d'ouverture de cycle de cyclooléfines filtrées.

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