Acrylic compositions

C - Chemistry – Metallurgy – 08 – L

Patent

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C08L 33/12 (2006.01) C08F 265/04 (2006.01) C08F 265/06 (2006.01)

Patent

CA 2235158

Acrylic compositions are provided which comprise a matrix of polymethyl methacrylate having dispersed within it particles comprising 75 to 90 weight percent of polymethyl methacrylate and greater than 10 to 25 weight percent of a comonomer comprising an ethylenically unsaturated monomer that copolymerizes with methyl methacrylate, wherein the particles further comprise more than 0.4 weight percent of a cross-linker.

L'invention concerne des compositions acryliques comprenant une matrice de polyméthyle méthacrylate dans laquelle sont dispersées des particules comportant 75 à 90 % en poids de polyméthyle méthacrylate et une quantité supérieure à 10-25 % en poids d'un comonomère composé d'un monomère éthyléniquement insaturé effectuant une copolymérisation avec le méthyle méthacrylate, ces particules comportant, de plus, une quantité supérieure à 0,4 % en poids d'un agent de réticulation.

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