Patent ID: 6689839
Filing Date: 2004-02-10
Classification: C08G,C09D

Abstract:
A thermoset paint composition, comprising:(a) from 20 to 70% by weight of a fluorine containing copolymer comprising the result of copolymerizing at least one fluoro-olefin monomer, at least 10% by weight of one or more hydroxy group containing vinyl monomer having at least four atoms between a vinyl group and a hydroxy group, and a terminal hydroxy group, the percent by weight based on the total weight of copolymer (a), and one or more other vinyl monomer, the fluorine containing copolymer (a) having a solubility parameter from 9.0 to 10.5 and a hydroxy group value from 60 to 150 mgKOH/g2 (b) from 20-70% by weight of a vinyl (co)polymer comprising the result of copolymerizing at least one vinyl monomer, said at least one vinyl monomer comprising at least 10% by weight of one or more monomers represented by the general formula 1 wherein R1 to R5 each independently represent H or methyl group, i is 0-2, j is 0 or 1, k is 0-3, mis 0-3 and n is 0-10, the vinyl (co)polymer (b) having a solubility parameter from 9.0 to 10.5 and a hydroxy group value from 60 to 150 mgKOH/g, (c) from 5 to 40% by weight of alkyl etherified melamine resin, and (d) from 2 to 40% by weight of blocked polyisocyanate compound, wherein all percents by weight are based on the total weight of the resin components (a) to (d), the thermoset paint composition providing a paint film having a glass transition temperature after hardening of at least 50Â° C.