C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
117/185, 402/9,
C08J 7/04 (2006.01) C08G 77/20 (2006.01) C08L 83/06 (2006.01) C09D 183/06 (2006.01)
Patent
CA 1142682
Abstract of the Disclosure: Curable coating agents, a process for the production of scratch-resistant coat- ings on plastics, and articles coated by this process. The coating agents are polycondensates of a reaction product, containing two or more carbon-carbon double bonds and one or more hydroxyl or alkoxy groups per molecule, obtained from an olefinic- ally unsaturated silane containing 2 or more hydroxyl or alkoxy groups, whose olefinically unsaturated org- anic radical is bonded via a C-Si bond, and a hydroxyl- containing .beta.,.beta.-olefinically unsaturated monomer, an olefinically unsaturated silane of the general formula R1-Si(OR2)3 where R1 is a vinyl radical or an alkyl acrylate or alkyl methacrylate radical bonded to the Si atom via a C-Si bond and R2 is hydrogen or a saturated hydrocarbon radical, and a saturated silane of the general formula Image where R3 and R4 are saturated or aromatic hydrocarbon- radicals, with or without an epoxide-containing silane which also contains hydroxyl or alkoxy groups; the polycondensate may additionally contain an olefinic- ally unsaturated reaction product of acrylic or methacrylic acid and a polyalcohol or polyether-ol. The costing agent is used to produce scratch- resistant coatings on the surface of plastics.
362963
Heil Guenter
Jaeckel Klaus-Peter
Spoor Herbert
Basf Aktiengesellschaft
Robic Robic & Associes/associates
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