发明申请
- 专利标题： SURFACE TREATMENT LIQUID FOR ZINC OR ZINC ALLOY COATED STEEL SHEET, ZINC OR ZINC ALLOY-COATED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME
- 专利标题（中）： 锌或锌合金涂层钢板，锌或锌合金涂层钢板的表面处理液及其制造方法
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申请号： US13820869申请日： 2011-09-20
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公开(公告)号： US20130171468A1公开(公告)日： 2013-07-04
- 发明人: Toru Imokawa , Takahiro Kubota , Etsuo Hamada , Masayasu Nagoshi
- 申请人： Toru Imokawa , Takahiro Kubota , Etsuo Hamada , Masayasu Nagoshi
- 申请人地址： JP Tokyo
- 专利权人： JFE Steel Corporation
- 当前专利权人： JFE Steel Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2010214500 20100924
- 国际申请： PCT/JP2011/005288 WO 20110920
- 主分类号： C09D5/08
- IPC分类号： C09D5/08
摘要：
The present invention provides a chromium-free surface treatment liquid which enables forming, on a metal material surface, a film excellent in corrosion resistance at bent portions of a steel sheet, solvent resistance, coating properties after alkaline degreasing, and sweat resistance. The surface treatment liquid contains a resin compound having a specific bisphenol skeleton, a cationic urethane resin emulsion, a silane coupling agent, an organic titanium chelate compound, a quadrivalent vanadyl compound, a molybdate compound, a fluorine compound, and water at predetermined proportions. The pH of the surface treatment liquid is in the range of 4 to 5.
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