Thermoset covering composition

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 133/14 (2006.01) C08G 18/62 (2006.01) C08G 18/80 (2006.01) C09D 175/04 (2006.01) C09D 179/02 (2006.01)

Patent

CA 2177483

To provide compositions with which paints which have excellent acid resistance and scratching resistance, and with which a poor appearance can be avoided, can be obtained. A thermoset covering composition comprised of (A) vinyl based copolymer comprised of lactone modified acrylic monomer and other monomer, (B) blocked polyisocyanate compound which has been reacted with a mixture of malonic acid ester and acetoacetic acid ester, and (C) alkyl etherified amino resin.

Cette invention concerne des compositions qu'on peut utiliser avec des peintures présentant une excellente résistance aux acides et aux éraflures, et qui donnent un bon aspect au produit fini. Cette composition de voile protecteur thermodurci est formée (A) d'un copolymère à base de vinyle comportant un monomère acrylique modifié par lactone et un autre monomère, (B) d'un composé de polyisocyanate séquencé qu'on a fait réagir avec un mélange d'ester d'acide malonique et d'ester acétoacétique, et (C) d'une résine aminique éthérifiée par alkyle.

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