-
公开(公告)号:US20040156999A1
公开(公告)日:2004-08-12
申请号:US10774559
申请日:2004-02-09
申请人: Pavco, Inc.
IPC分类号: B05D001/18 , C23C018/31 , C23C018/48
CPC分类号: C23C22/53 , C23C22/10 , C23C2222/10
摘要: A composition and method for providing a blank chromate conversion coating is provided. The composition is substantially free of hexavolent chromium and provides a black finish, on zinc or zinc alloy coatings. The composition includes trivalent chromium ions, phosphorous anions, anions selected from the group consisting of sulfate ions, nitrate ions and combinations thereof, at least one of a transition metal or metalloid from Groups III, IVa, Va or VIII, and an organic chelate selected from the group consisting of carboxylic acids, polycarboxylic acids and combinations thereof.
摘要翻译: 提供了一种用于提供空白铬酸盐转化涂层的组合物和方法。 该组合物基本上不含六价铬,并在锌或锌合金涂层上提供黑色整理剂。 组合物包括三价铬离子,磷阴离子,选自硫酸根离子,硝酸根离子及其组合的阴离子,选自第III,IVa,Va或VIII族的过渡金属或准金属中的至少一种,以及选择的有机螯合物 由羧酸,多元羧酸及其组合组成。