发明公开
- 专利标题： SURFACE-TREATED STEEL SHEET EXCELLENT IN RESISTANCE TO WHITE RUST AND METHOD FOR PRODUCTION THEREOF
- 专利标题（中）： 表面处理钢板抗白锈性优良及其生产方法
-
申请号： EP03705145.5申请日： 2003-02-14
-
公开(公告)号： EP1524332A1公开(公告)日： 2005-04-20
- 发明人: OKAI, Kazuhisa, c/o Int.Property Department , MATSUZAKI, Akira c/o Int.Property Department , YOSHIMI, Naoto c/o Int.Property Department , KUBOTA, Takahiro c/o Int.Property Department , YAMASHITA, Masaaki c/o Int.Property Department , NORO, Hisato c/o Int.Property Department , NAKACHIMI, Haruo c/o Int.Property Department , SATO, Kaoru c/o Int.Property Department , MATSUKI, Hiroyasu, c/o Kansai Paint Co., Ltd , NISHIDA, Reijiro, c/o Kansai Paint Co., Ltd , MURATA, Masahiro, c/o Kansai Paint Co., Ltd , TANAKA, Shoichi, c/o Kansai Paint Co., Ltd , MOROHOSHI, Yoshikazu, c/o Kansai Paint Co., Ltd , AMAKI, Shingo, c/o Kansai Paint Co., Ltd
- 申请人： JFE Steel Corporation , KANSAI PAINT CO., LTD.
- 申请人地址： 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo, 100-0011 JP
- 专利权人： JFE Steel Corporation,KANSAI PAINT CO., LTD.
- 当前专利权人： JFE Steel Corporation,KANSAI PAINT CO., LTD.
- 当前专利权人地址： 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo, 100-0011 JP
- 代理机构： Heusler, Wolfgang, Dipl.-Ing.
- 优先权： JP2002214579 20020723
- 国际公布： WO2004009870 20040129
- 主分类号： C23C22/07
- IPC分类号： C23C22/07 ; C23C22/36
摘要：
The invention is to provide a surface-treated steel sheet of good white rust resistance with no chromium in its surface treatment film, and it has realized a surface-treated steel sheet of higher-level corrosion resistance by forming a reaction layer of plating metal with a barrier layer effective for anticorrosion not in a two-layered film but in a single-layered film. The surface-treated steel sheet is fabricated by applying a surface-treating composition that contains:
(a) a water-dispersible resin and/or a water-soluble resin obtained through reaction of an epoxy group-containing resin (A) with an active hydrogen-containing compound (B) a part or all of which is an active hydrogen-containing hydrazine derivative and preferably with a hydrophilic organic component (C),
(b) a silane coupling agent,
(c) a phosphoric acid and/or a hexafluoro-metal acid, and
(d) preferably an aqueous dispersion of an urethane resin, to a zinc-plated or aluminium-plated steel sheet followed by drying it to form thereon a surface treatment film having a thickness of from 0.02 to 5 µm. Regarding its film structure, the surface treatment film comprises an amorphous compound layer containing P, Zn and/or Al, and O, and an overlying organic resin matrix layer where the matrix is a hydrazine derivative-modified epoxy group-containing resin or the epoxy group-containing resin and an urethane resin.
(a) a water-dispersible resin and/or a water-soluble resin obtained through reaction of an epoxy group-containing resin (A) with an active hydrogen-containing compound (B) a part or all of which is an active hydrogen-containing hydrazine derivative and preferably with a hydrophilic organic component (C),
(b) a silane coupling agent,
(c) a phosphoric acid and/or a hexafluoro-metal acid, and
(d) preferably an aqueous dispersion of an urethane resin, to a zinc-plated or aluminium-plated steel sheet followed by drying it to form thereon a surface treatment film having a thickness of from 0.02 to 5 µm. Regarding its film structure, the surface treatment film comprises an amorphous compound layer containing P, Zn and/or Al, and O, and an overlying organic resin matrix layer where the matrix is a hydrazine derivative-modified epoxy group-containing resin or the epoxy group-containing resin and an urethane resin.
公开/授权文献
信息查询
IPC分类:
