Laminate

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/30 (2006.01) B32B 27/00 (2006.01) C08J 7/04 (2006.01) C08L 33/06 (2006.01) C08L 83/02 (2006.01) C08L 83/04 (2006.01) C09D 133/04 (2006.01) C09D 183/02 (2006.01) C09D 183/04 (2006.01)

Patent

CA 2644773

Disclosed is a multilayer body comprising a base, a first layer obtained by thermally curing an acrylic resin composition, and a second layer obtained by thermally curing an organosiloxane resin composition. This multilayer body is excellent in weather resistance, wear resistance and the like. The first layer mainly contains an acrylic copolymer containing 1-85 mol% of a cycloalkyl group-containing unit, a block polyisocyanate compound, a curing catalyst and a triazine ultraviolet absorbent. The second layer is composed of a colloidal silica and a hydrolysis-condensation product of an alkoxysilane.

La présente invention concerne un corps multicouche comprenant une base, une première couche obtenue par un traitement thermique de durcissement d'une composition de résine acrylique et une seconde couche obtenue par un traitement thermique de durcissement d'une composition de résine organosiloxane. Ce corps multicouche est excellent en termes de résistance aux intempéries, de résistance à l'usure et analogues. La première couche contient principalement un copolymère acrylique contenant de 1 à 85 % en mole d'un motif contenant un groupe cycloalkyle, un composé polyisocyanate séquencé, un catalyseur de durcissement et un absorbant de rayons UV de type triazine. La seconde couche est composée d'une silice colloïdale et d'un produit d'hydrolyse et de condensation d'un alcoxysilane.

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