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    • 1. 发明授权
    • Electrodeposition coating composition, electrodeposition process and
electrodeposited article
    • 电沉积涂料组合物,电沉积工艺和电沉积制品
    • US4842940A
    • 1989-06-27
    • US935418
    • 1986-11-26
    • Tatsushiro YoshimuraNobuyuki TomihashiTsutomu Terada
    • Tatsushiro YoshimuraNobuyuki TomihashiTsutomu Terada
    • C09D5/44C09D127/12C25D13/06
    • C09D5/4407Y10S524/901Y10T428/31544
    • An electrodeposition coating composition comprising a fluorine-containing copolymer having an anionic functional group, a curing agent and water, said copolymer comprising:(a) 20 to 80% by mole of the structural unit of the formula (1):--CFX--CF.sub.2 -- (1)(b) 5 to 60% by mole of the structural unit of the formula (2): ##STR1## (c) 0 to 40% by mole of the structural unit of the formula (3): ##STR2## (d) 0 to 40% by mole of the structural unit of the formula (4): ##STR3## the total amount of the structural units (a), (b), (c) and (d) being 100% by mole. The composition of the invention can be baked to substrates at a low temperature in comparison with compositions containing conventional fluorine-containing copolymers, and the films obtained by electrodepositing the composition are excellent in gloss, weatherability, adhesion to the substrates, alkali resistance and smoothness.
    • 一种电沉积涂料组合物,其包含具有阴离子官能团的含氟共聚物,固化剂和水,所述共聚物包含:(a)20至80摩尔%的式(1)的结构单元:-CFX-CF 2 - (1)(b)式(2)的结构单元为5〜60摩尔%:(2)(c)式(3)的结构单元为0〜40摩尔% (3)(d)式(4)的结构单元为0〜40摩尔%:(4)结构单元(a),(b),(c)的总量, (d)为100摩尔%。 与含有常规含氟共聚物的组合物相比,本发明的组合物可以在低温下烘烤至基材,并且通过电沉积该组合物获得的膜具有优异的光泽度,耐候性,对基材的粘附性,耐碱性和平滑性。