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    • 8. 发明授权
    • Fluorine-containing copolymer and curable composition containing the same
    • 含氟共聚物和含有该共聚物的可固化组合物
    • US5216081A
    • 1993-06-01
    • US953792
    • 1992-09-30
    • Haruhiko MohriYoshiki ShimizuHideya SaitoAkira Chida
    • Haruhiko MohriYoshiki ShimizuHideya SaitoAkira Chida
    • C08F210/00C08F214/18C08L27/12C08L33/06
    • C08F214/186C08F210/00C08L27/12C08L33/06
    • A fluorine-containing copolymer comprising 20 to 60% by mole of the fluoroolefin unit (1), 5 to 45% by mole of the .beta.-methyl substituted .alpha.-olefin unit (2), 1 to 45% by mole of the unit (3) derived from a monomer having a chemically curable functional group, 1 to 45% by mole of the unit (4) derived from a monomer having ester moieties in the side chains and 0 to 45% by mole of the unit (5) derived from a copolymerizable monomer other than the above monomers, if necessary, 0.1 to 15% by mole of the unit (6) derived from a monomer having carboxyl groups. The copolymer can provide a curable composition alone or with an acrylic polymer. The fluorine-containing copolymer is excellent in solvent-solubility, compatibility with curing agents, additives and other polymers, pigment dispersibility, curing reactivity, dispersibility to water, pot life, film forming ability, coating properties, and the like. The coating film prepared from the copolymer has a high weatherability and is excellent in film properties such as stain resistance, heat-yellowing resistance, dechlorination resistance, optical properties, adhesion to a substrate, mechanical properties, heat resistance, chemical resistance, solvent (gasoline) resistance, water resistance and good appearance of finished products.
    • 含有20〜60摩尔%的氟代烯烃单元(1)的含氟共聚物,5〜45摩尔%的β-甲基取代的α-烯烃单元(2),1〜45摩尔%的单元( 3)衍生自具有化学上可固化的官能团的单体,1〜45摩尔%的由侧链中具有酯部分的单体衍生的单元(4)和0〜45摩尔%的单元(5)得自 从除了上述单体以外的共聚单体,如果需要,由具有羧基的单体衍生的单元(6)为0.1〜15摩尔%。 共聚物可单独提供可固化组合物或与丙烯酸聚合物一起提供。 含氟共聚物的溶剂溶解性,与固化剂,添加剂等聚合物的相容性,颜料分散性,固化反应性,水分散性,适用期,成膜性,涂布性等优异。 由共聚物制备的涂膜具有高的耐候性,并且具有优异的耐污性,耐黄变性,耐脱氯性,光学性能,对基材的粘附性,机械性能,耐热性,耐化学性,溶剂(汽油 )阻力,耐水性和成品外观好。