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1. 发明授权

US5318640A Surface treatment method and composition for zinc coated steel sheet 失效
标题翻译：镀锌钢板的表面处理方法和组成
公开(公告)号：US5318640A
公开(公告)日：1994-06-07
申请号：US916096
申请日：1992-07-28
申请人： Hitoshii Ishii , Kazuhiko Mori , Toshi Miyawaki , Shizuo Shima
发明人： Hitoshii Ishii , Kazuhiko Mori , Toshi Miyawaki , Shizuo Shima
IPC分类号： C23C22/60 , C23C22/78 , C23C18/46
CPC分类号： C23C22/60 , C23C22/78
摘要： A nickel and/or cobalt deposition process which can be run at a nearly neutral pH and which rapidly deposits nickel and/or cobalt in quantities large enough to improve the paint adhesion and post coating corrosion resistance, and which has a good solution stability, is achieved by treating zinc coated sheet steel with an aqueous solution that has a pH between 5 and 10 inclusive and comprises (A) a total of at least 0.01 g/L of metal ions selected from the group consisting of Ni.sup.2+ and Co.sup.2+ ions and (B) a sufficient amount to fully complex the metal ions recited in part (A) of complexing agents selected from the group consisting of ammonia and organic compounds having at least one amino group in the neutral region.The substitution precipitation reaction of nickel and cobalt is substantially accelerated by the presence, as a third component in addition to the metal ion and complexing agent, of at least one ionic species or compound selected from the nitrite ion, nitrate ion, thiocyanate ion, thiosulfate ion, thiourea, phosphite ion, hypophosphite ion, and perchlorate ion.
摘要翻译： PCT No.PCT / US91 / 00531 Sec。 371日期：1992年7月28日 102（e）日期1992年7月28日PCT 1991年1月25日PCT PCT。出版物WO91 / 11542 日期：1991年8月8日。镍和/或钴沉积方法，其可以在接近中性的pH下运行，并且以足够大的量快速沉积镍和/或钴以改善涂料粘附性和后涂层耐腐蚀性，以及哪些具有良好的溶液稳定性，通过用pH为5〜10的水溶液处理镀锌钢板而实现，其包含（A）总计至少0.01g / L的金属离子，所述金属离子选自 Ni2 +和Co2 +离子和（B）足够的量使得在中性区域中具有至少一个氨基的氨和有机化合物中选择的一组络合剂部分（A）中所述的金属离子完全复合。作为除了金属离子和络合剂之外的至少一种离子种类或选自亚硝酸根离子，硝酸根离子，硫氰酸根离子，硫代硫酸盐的化合物的第三成分，镍和钴的取代沉淀反应基本上加快离子，硫脲，亚磷酸根离子，次磷酸根离子和高氯酸根离子。

2. 发明授权

US4931317A Composition and process for the formation of a black coating on surfaces of materials 失效
标题翻译：在材料表面形成黑色涂层的组成和工艺
公开(公告)号：US4931317A
公开(公告)日：1990-06-05
申请号：US330557
申请日：1989-03-30
申请人： Shizuo Shima , Soei Koizumi
发明人： Shizuo Shima , Soei Koizumi
IPC分类号： C23C22/30 , C23C22/74
CPC分类号： C23C22/74 , C23C22/30
摘要： A deeply and uniformly black coating with excellent adhesion and corrosion resistance can be formed on a wide variety of substrates by coating them with an aqueous composition containing an amount of chromium trioxide to give a stoichiometric equivalent of from about 30 to about 150 g/L of Cr.sup.6+ ; from about 20 to about 100 g/L of Cr.sup.3+ ; a component to provide a stoichiometrically equivalent amount of from about 0.5 to about 50 g/L of total Fe, Co, and Ni ions; from about 5 to about 200 g/L of dispersed or dissolved organic film forming polymer; and the balance water, with a weight ratio of Cr.sup..alpha.6 to Cr+3 between about 5 and about 1; and heating the coated substrate to a temperature between 100.degree. and 350.degree. C. for 5 seconds to 10 minutes.
摘要翻译：通过用含有一定量的三氧化铬的水性组合物涂布，可以在各种基材上形成具有优异的粘合性和耐腐蚀性的深层均匀的黑色涂层，得到化学计量当量为约30至约150g / L的 Cr6 +; 约20至约100g / L的Cr 3+; 提供约0.5至约50g / L的总Fe，Co和Ni离子的化学计量当量的组分; 约5至约200g / L的分散或溶解的有机成膜聚合物; 和平衡水，重量比Crα6至Cr + 3约5至约1; 并将涂覆的基材加热至100℃至350℃的温度5秒至10分钟。

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