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Invention Publication
CN101542018A 环保型预涂金属材料用水性表面处理剂、以及表面处理金属材料和环保型预涂金属材料 失效 - 权利终止

环保型预涂金属材料用水性表面处理剂、以及表面处理金属材料和环保型预涂金属材料
Abstract:
本发明提供作为用于制作耐腐蚀性、涂装粘附性(T弯曲试验中的涂装一次粘附性和涂装二次粘附性)和耐硬币刮擦性优良的预涂金属材料的基底处理剂有用的无铬水性表面处理剂等。一种环保型预涂金属材料用水性表面处理剂、以及具有由该表面处理剂形成的被膜的金属材料和无铬预涂金属材料，所述表面处理剂含有硅烷偶联剂和/或硅烷偶联剂的缩合物(A)、金属氧化物溶胶(B)、金属化合物(C)和水分散性二氧化硅(D)，金属化合物(C)为选自V、W、Mo、Al、Sn、Nb、Hf、Y、Ho、Bi、La、Ce和Zn的化合物的至少一种，(B)/(A)质量比为1/50～10/1，(C)/(A)质量比为1/1000～4/10，(D)/(A)质量比为1/50～10/1。
Abstract(English):

The invention provides a chromium-free aqueous surface treatment useful as primer in producing precoated metal materials which are excellent in corrosion resistance, tight adhesion of coat (primary adhesiveness and secondary adhesiveness of coat in T-bend test), and coin scratch resistance. An aqueous surface treatment for environment-friendly precoated metal materials which contains (A) a silane coupling agent and/or a condensate of a silane coupling agent, (B) a metal oxide sol, (C) a metal compound, and (D) water-dispersible silica, wherein the metal compound (C) is at least one member selected from among compounds of V, W, Mo, Al, Sn, Nb, Hf, Y, Ho, Bi, La, Ce and Zn, and the (B)/(A) mass ratio is 1/50 to 10/1, the (C)/(A) mass ratio is 1/1000 to 4/10, and the (D)/(A) mass ratio is 1/50 to 10/1; and metal materials and chromium-free precoated metal materials, which have films made from the surface treatment.

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