Title:
ELETROLYTIC TREATMENT METAL SURFACE TREATMENT AGENT
Document Type and Number:
WIPO Patent Application WO/2018/016251
Kind Code:
A1
Abstract:
[Problem] To provide an electrolytic treatment metal surface treatment agent that is capable of imparting not only can-making workability, film adhesiveness, paint adhesiveness, corrosion resistance, sulfide blackening resistance, etc. but also the property of color fastness on Sn-based plating materials and that is suitable for practical use in terms of depositability of a Zr-P film in a short time, stability of the metal surface treatment agent to Sn contamination, stability of the metal surface treatment agent over time, etc. [Solution] An electrolytic treatment metal surface treatment agent that contains a dissolved Zr component, a dissolved F component, a dissolved P component, and at least one kind of anion selected from a group consisting of nitrate ions, chloride ions and sulfate ions. The ratio (Pw/Zrw) of the mass (Pw) of the dissolved P component calculated as elemental P to the mass (Zrw) of the dissolved Zr component calculated as elemental Zr is in the range of 0.04 to 0.5. The concentration of a component calculated as hydrogen peroxide calculated by redox titration is in the range of 100 mg/L to 1500 mg/L.
Inventors:
UENO KEIICHI (JP)
KITAMURA KAZUYA (JP)
ISHIWADA MIDORI (JP)
KITAMURA KAZUYA (JP)
ISHIWADA MIDORI (JP)
Application Number:
PCT/JP2017/022331
Publication Date:
January 25, 2018
Filing Date:
June 16, 2017
Export Citation:
Assignee:
NIHON PARKERIZING (JP)
International Classes:
C25D9/08
Domestic Patent References:
| WO2012002360A1 | 2012-01-05 | |||
| WO2011126137A1 | 2011-10-13 |
Foreign References:
| JPH07310189A | 1995-11-28 | |||
| JP2016037620A | 2016-03-22 |
Attorney, Agent or Firm:
ITOH, Atsushi (JP)
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