发明公开
- 专利标题: AQUEOUS TREATMENT LIQUID FOR Sn-PLATED STEEL SHEET HAVING EXCELLENT CORROSION RESISTANCE AND COATING ADHESION, AND METHOD FOR PRODUCING SURFACE-TREATED STEEL SHEET
- 专利标题(中): 水性处理液具有优良的耐腐蚀性和COVER责任并产生表面处理的钢板方法镀锡钢板
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申请号: EP07807179.2申请日: 2007-09-06
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公开(公告)号: EP2060660A1公开(公告)日: 2009-05-20
- 发明人: YAMAGUCHI, Shinichi , KUROSAKI, Masao , GOTO, Yasuto , KUMAGAI, Manabu , MIZUNO, Kensuke , KOZAKI, Takumi
- 申请人: Nippon Steel Corporation
- 申请人地址: 6-3, Otemachi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 专利权人: Nippon Steel Corporation
- 当前专利权人: Nippon Steel Corporation
- 当前专利权人地址: 6-3, Otemachi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 代理机构: Vossius & Partner
- 优先权: JP2006242221 20060907
- 国际公布: WO2008029953 20080313
- 主分类号: C23C22/48
- IPC分类号: C23C22/48 ; C23C22/07
摘要:
An aqueous treating solution for an Sn-based plated steel sheet, comprising (A) an organic material, (B) a water-soluble chromium compound, (C) a water-dispersible silica, and water, wherein the organic material (A) is at least one member selected from an oxy-acid with the ratio of hydroxyl group/carboxyl group in one molecule being from 3/1 to 10/1, its lactone form and an oxide derivative thereof, the water-soluble chromium compound (B) does not contain hexavalent chromium, and pH is from 0.7 to 6.0.
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