AQUEOUS SURFACE-TREATING AGENT FOR METAL MATERIAL AND SURFACE-COATED METAL MATERIAL
申请人:NIHON PARKERIZING CO., LTD.
公开号:EP1959030A2
公开(公告)日:2008-08-20
An aqueous surface-treating agent for metallic materials wherein (A) a water dispersible urethane resin having a glass transition temperature of more than 50°C and a minimal coating-forming temperature of 40°C or less; (B) at least one organic compound selected from methylolated phenols and their condensates, carbodiimide resins, epoxy resins, silane coupling agents, organic phosphonic acids and their partial alkali metal salts/ ammonium salts/ esters with alkanols having 1 to 4 carbon atoms, organic phosphinic acids, phosphoric esters of polyols, amine compounds, isocyanate compounds, aldehyde compunds, carboxylic acids, amino resins and urethane prepolymers whose isocyanato groups are protected by addition reacting an alkali metal bisulfite thereto; and (C) a zirconium compound are compounded in water. By the invention, there are provided the agent capable of forming a coating excellent in corrosion resistance, formability, chemical resistance and moisture resistance; and a surface coated metallic material.
一种用于金属材料的水性表面处理剂,其中 (A) 水分散性聚氨酯树脂,其玻璃化转变温度大于 50°C,最低涂层形成温度为 40°C 或更低;(B) 至少一种有机化合物,选自甲醇化酚及其缩合物、碳化二亚胺树脂、环氧树脂、硅烷偶联剂、有机膦酸及其部分碱金属盐/铵盐/具有 1 至 4 个碳原子的烷醇的酯、有机膦酸、多元醇的磷酸酯、胺化合物、异氰酸酯化合物、醛复合物、羧酸、氨基树脂和异氰酸基通过与碱金属亚硫酸氢盐加成反应而得到保护的聚氨酯预聚物;和 (C) 锆化合物在水中复合。本发明提供了能够形成耐腐蚀性、成型性、耐化学性和防潮性优良涂层的制剂,以及表面涂层金属材料。