Surface treatment composition
    7.
    发明专利

    公开(公告)号:JP5570452B2

    公开(公告)日:2014-08-13

    申请号:JP2011024777

    申请日:2011-02-08

    IPC分类号: C23C26/00

    摘要: The object is to provide a surface-treated plate which has excellent properties such as good processability, high corrosion resistance, high dew condensation/whitening resistance and so on. Provided is a surface-treating agent which comprises a water-dispersible polyurethane resin (A) together with, per 100 parts by mass of the total solid matters in the water-dispersible polyurethane resin (A), 5-50 parts by mass of a rust-preventive agent (B), 10-150 parts by mass of colloidal silica (C) having been treated with a silane coupling agent, and 30-110 parts by mass of a basic alkali silicate (D), wherein the rust-preventive agent (B) comprises a titanium compound (b1), an organic phosphoric acid compound (b2) and, in addition thereto, at least one member selected from among a vanadium compound (b3) and a zirconium compound (b4).