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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/087475
Kind Code:
The present invention addresses the problem of providing: a metal surface treatment agent capable of exhibiting excellent corrosion resistance and excellent coating adhesion in coated metal materials; and a method for treating a metal surface by using the metal surface treatment agent. The problem can be resolved by a pretreatment agent which is used for pretreatment in a chemical conversion treatment for forming a chemical conversion coating on the surface of a metal material and obtained by mixing a metal alkoxide (A) containing at least one metal element selected from among zirconium, titanium, vanadium, and aluminum, and at least one sulfonic acid (B) selected from among methanesulfonic acid, ethanesulfonic acid, hydroxymethanesulfonic acid, and hydroxyethanesulfonic acid. The problem can also be resolved by a chemical conversion treatment agent which is obtained by mixing a zirconium alkoxide (a) and a source of zirconium-containing ions (b), and has a pH of 1.5-6.5.

SUZUKI, Amane (15-1, Nihonbashi 1-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
IKO, Tomohiro (15-1, Nihonbashi 1-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
FUKUSHI, Hidekazu (15-1, Nihonbashi 1-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
Application Number:
Publication Date:
May 09, 2019
Filing Date:
July 20, 2018
Export Citation:
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NIHON PARKERIZING CO., LTD. (15-1, Nihonbashi 1-chome Chuo-k, Tokyo 27, 〒1030027, JP)
International Classes:
C23C22/80; B05D3/10; B05D7/14; C23C22/06; C23C22/78
Attorney, Agent or Firm:
SANUKI, Shinichi et al. (Acropolis 21 Building 8th floor, 4-10 Higashi Nihonbashi 3-chome, Chuo-k, Tokyo 04, 〒1030004, JP)
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