Polymerisable mass with cross-linking nanoparticles

Details Polymerisable mass with cross-linking nanoparticles Polymerisable mass with cross-linking nanoparticles

C - Chemistry, Metallurgy

08

F

C08F 220/14 (2006.01) C08F 2/44 (2006.01) C08K 9/06 (2006.01)

Patent

CA 2720385

The invention relates to a polymerisable mass, comprising a) acrylates and/or methacrylates, b) 0.05 to 70 wt. % SiO2-particles with a mean particle size of 1 to 30 nm, with polymerisable groups of the methacryloyl, acryloyl, styryl, itaconyl, crotonyl, vinyl, allyl and/or alkenyl type on the surface, dispersed in the acrylates and/or methacrylates, wherein the SiO2- particles consist of at least 50% of individual non-aggregated or agglomerated primary particles and c) a maximum of 2 wt. % cross-lin-king molecules.

L'invention concerne une matière polymérisable contenant a) des acrylates et/ou des méthacrylates, b) 0,05 à 70 % en poids de particules de SiO2 qui possèdent une taille moyenne de particule comprise entre 1 et 30 nm, présentent sur leur surface des groupes polymérisables du type méthacryloyle, acryloyle, styryle, itaconyle, crotonyle, vinyle, alIyIe et/ou alcényle et sont en dispersion dans les acrylates et/ou les méthacrylates, ces particules de SiO2 se composant à au moins 50% de particules primaires dispersées non agrégées ou agglomérées, c) au maximum 2 % en poids de molécules réticulantes.

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