Cross-linkable vinylester-copolymers and use thereof as...

C - Chemistry – Metallurgy – 08 – F

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C08F 8/46 (2006.01)

Patent

CA 2707131

The invention relates to cross-linkable vinylester-copolymers obtained by means of radically initiated polymerisation of a) one or more vinyl esters and b) one or more ethylenically unsaturated, epoxy functional monomers, and by a subsequent reaction that is analogous to polymerisation of the thus obtained base polymers with one or more ethylenically unsaturated acids g), such that at least one ethylenically unsaturated, polymerizable group is introduced into each base polymer. Said invention is characterised in that the cross-linkable vinylester-copolymers have molecular weights of Mn of >= 6.500 g/mol.

L'invention concerne des copolymères d'ester de vinyle réticulables obtenus par polymérisation radicalaire de a) un ou plusieurs esters de vinyle et de b) un ou plusieurs monomères éthyléniquement insaturés à fonctionnalité époxy, et par réaction subséquente de type polymérique des polymères de base ainsi obtenus avec un ou plusieurs acides éthyléniquement insaturés, de manière qu'au moins un groupe polymérisable éthyléniquement insaturé soit introduit dans chaque polymère de base. L'invention est caractérisée en ce que les copolymères d'ester de vinyle réticulables ont des poids moléculaires Mn = 6.500 g/mol.

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