Patent ID: 6825239
Filing Date: 2004-11-30
Classification: C08F,C09D

Abstract:
Fluid silica-acrylic compositions, stable in the long term, polymerizable thermally and by radiation, by mechanism giving rise to free radicals, with a very low water and volatile solvent content, containing silica, a silane and a multlfunctional acrylic monomer, wherein the silica is in the form of individualised particles with an average diameter in the range 9 to 100 nm, not interconnected by siloxane bonds, and the silane is a vinyl silane of the formula (I)H2C&boxH;CHâ€”Si (OR)3(I) in which R represents a methyl or ethyl radical, and the multifunctional (meth)acrylic monomer is an alkoxylated (meth)acrylate not soluable in water, where the fluid silico-acrylic compositions have a Brookfield viscosity after manufacture below 1500 mPa.s.