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    • 8. 发明授权
    • Method for forming coating film on plastic substrate
    • 在塑料基材上形成涂膜的方法
    • US07150899B2
    • 2006-12-19
    • US10694057
    • 2003-10-28
    • Hiroyuki OnoyamaYasuyuki KataokaShuichi NakaharaYoshizumi Matsuno
    • Hiroyuki OnoyamaYasuyuki KataokaShuichi NakaharaYoshizumi Matsuno
    • B05D1/04B05D1/38
    • B05D7/572B05D1/045B05D2201/02Y02P20/582
    • The present invention provides a method for forming a coating film on a plastic substrate which comprises: (1) coating the plastic substrate with an aqueous white primer (A) having a water content of 15 to 48 wt. % to form a coating film having an L* value of 80 or more, (2) heating the coating film of the primer (A) to adjust the water content of the film to 1 to 10 wt. % and the surface electrical resistivity value of the film to less than 109 Ω/square, (3) electrostatically coating the coating film of the primer (A) with a thermosetting clear colored coating composition (B), (4) electrostatically coating the uncured coating film of the coating composition (B) with a thermosetting clear coating composition (C), and (5) baking the three-layer coating film to obtain a cured multilayer coating film having an N value of 8.5 or more.
    • 本发明提供一种在塑料基材上形成涂膜的方法,该方法包括:(1)用水含量为15〜48重量%的水性白底漆(A)涂布塑料基材。 %以形成L *值为80以上的涂膜,(2)加热底漆(A)的涂膜以将膜的水分调节至1〜10重量%。 %,膜的表面电阻率值小于10欧/平方,(3)用热固性透明有色涂料组合物(B)静电涂布底漆(A)的涂膜, ,(4)用热固性透明涂料组合物(C)将涂料组合物(B)的未固化涂膜静电涂覆,(5)烘烤三层涂膜,得到N值为 8.5以上。