In-mold coating compositions suitable as is for an end use...

C - Chemistry – Metallurgy – 09 – D

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C09D 175/16 (2006.01) B29C 37/00 (2006.01) B29C 45/14 (2006.01) C08F 290/06 (2006.01) C08G 18/67 (2006.01) C09D 151/08 (2006.01)

Patent

CA 2224779

An in-mold coating composition for a fiber reinforced plastic comprises an aliphatic resin such as a saturated aliphatic ester intermediate polyurethane having terminal acrylate end groups, a saturated (cyclo)aliphatic (meth)acrylate such as isobornyl acrylate, a hydroxyl alkyl (meth)acrylate, a polyacrylate ester of an alkylene polyol, and a vinyl substituted aromatic. The in-mold coating compositions have good end use weather-resistant properties so that there is no need for a subsequent paint coat thereon which heretofore has been required. The paint-free coating compositions can be either clear or pigmented and can contain various additives such as lubricants, adhesion aids, hardeners, and the like.

Divulgation d'une composition de revêtement surmoulé pour un plastique renforcé de fibres, comprenant une résine aliphatique, comme un polyuréthane intermédiaire d'ester aliphatique saturé comportant des groupements terminaux acrylates, un (méth)acrylate (cyclo)aliphatique saturé, comme l'acrylate d'isobornyle, un (méth)acrylate d'hydroxyalkyle, un ester polyacrylique de polyol alkylénique et un composé aromatique substitué par un groupement vinyle. Les compositions de revêtement surmoulé permettent de faire des produits ayant de bonnes propriétés de résistance aux intempéries, faisant qu'ils ne nécessitent pas d'être peints comme cela était le cas autrefois. Les compositions de revêtement sans peinture peuvent être transparentes ou colorées et peuvent contenir divers additifs comme des lubrifiants, des produits facilitant l'adhésion, des durcisseurs, etc.

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