Patent ID: 6166141
Filing Date: 2000-12-26
Classification: C08F,C08L,C09D

Abstract:
A fluorine-containing resin used for preparing a paint, said resin being soluble in an organic solvent, said resin being prepared by a graft copolymerization of 100 parts by weight of a fluorine-containing copolymer with 1-200 parts by weight of a fluorine-containing copolymer with 1-200 parts by weight of a first monomer composition, said graft copolymerization being conducted in a manner that said first monomer composition is polymerized at a position of a peroxy group which is contained in said fluorine-containing copolymer, said fluorine-containing copolymer being prepared by copolymerizing a second monomer composition comprising (a) 20-70 mol % of a fluoroolefin; (b) 0.01-15 mol % of a monomer having said peroxy group; and (c) 20-70 mol % of a comonomer which is at least one of a carboxylic acid vinyl ester and a first monomer,wherein said carboxylic acid vinyl ester is represented by a general formula ofR--C(.dbd.O)OCH.dbd.CH.sub.2where R is a first group which is an alkyl group, a cycloalkyl group or an aromatic group, said first group having a carbon atom number of from 1 to 22, said alkyl group having an optional branch, each of said cycloalkyl group and said aromatic group having an optional alkyl substituent, said first group having at least one substituent which has been substituted for at least one hydrogen atom of said first group, said at least one optional substituent being selected from the group consisting of hydroxyl group, epoxy groups, amino group and alkoxysilyl groups,wherein said first monomer is at least one compound selected from the group consisting of vinyl ethers and allyl ethers, said first monomer being represented by a general formula ofR--O--(CH.sub.2)n-CH.dbd.CH.sub.2where R is defined as above, and n is 0 or 1,wherein said first monomer composition contains a second monomer which is at least one compound selected from the group consisting of methacrylic acid esters and acrylic esters, said second monomer being represented by a general formula ofCH.sub.2 .dbd.C(--R')C(.dbd.O)O--Rwhere R is defined as above, and R' is hydrogen atom or methyl group.