Silico-acrylic compositions: method for their preparation...

Details Silico-acrylic compositions: method for their preparation... Silico-acrylic compositions: method for their preparation...

C - Chemistry, Metallurgy

08

F

C08F 230/08 (2006.01) C08F 222/10 (2006.01) C08F 290/14 (2006.01) C09D 4/00 (2006.01) C09D 4/06 (2006.01) C09D 143/04 (2006.01)

Patent

CA 2337569

Fluid silico-acrylic compositions, stable in the long term, polymerizable thermally and by radiatiion, by mechanism giving rise to free radicals, with a very low water (less than 1 %) and volatile solvent content, containing silica, a silane, and a multifunctional acrylic monomer, in which the silica is in the form of indivualised particles with an average diameter with the range 9 amd 100 nm, not interconnected by siloxane bonds, the silane is a vinyl silane with the formula (I) H2C=CH - Si(OR)3 (I) in which R represents a methyl or ethyl radical, and the multifunctional (meth)acrylic monomer is an alkoxylated (meth)acrylate, method for preparation and use for the development of anti-scratch transparent and uncoloured varnishes, obtained by polymerization giving rise to free radicals by radiation (UV, electron bundles) or thermally.

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