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1. (WO2017038431) SURFACE TREATMENT AGENT, SURFACE TREATMENT METHOD, AND SURFACE-TREATED METAL MATERIAL

Pub. No.:    WO/2017/038431    International Application No.:    PCT/JP2016/073728
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 13 01:59:59 CEST 2016
IPC: C23C 22/34
C23C 22/12
C23C 22/50
C23C 22/78
Applicants: NIHON PARKERIZING CO., LTD.
日本パーカライジング株式会社
Inventors: FUKUSHI, Hidekazu
福士 英一
TAKAMI, Atsushi
高見 淳
SAKO, Ryosuke
迫 良輔
Title: SURFACE TREATMENT AGENT, SURFACE TREATMENT METHOD, AND SURFACE-TREATED METAL MATERIAL
Abstract:
[Problem] To provide a novel surface treatment agent capable of forming a film having excellent corrosion resistance and coating adhesiveness on the surface of a metal material, a surface treatment method for forming a film on the surface of the metal material using the surface treatment agent, and a surface-treated metal material having a film formed by said method on the surface. [Structure] The problem can be solved by a surface treatment agent having a pH of 2-6 and containing at least one species of an anionic fluoroferrite (III) complex compound ion (A) represented by the formula (I): FeFn[H2O]mXi -(n-3) (I) (where 3 < n ≦ 6, 0 ≦ m < 3, I = [6 - (n + m)]/Z, i ≧ 0, X is a ligand capable of ligation to iron, and Z is the number of conformations of the ligand X).