Mec Company Ltd.

Tokuya Satomi

Daisaku Akiyama

Itsuro Tomatsu

Keisuke Joko

Yasutaka Amitani

Yoichi Sengoku

Masao Okada

Masaru Takahashi

Ryoko Mitani

The coating film-forming composition is a solution of pH 4 to 10 and includes an aromatic compound having an amino group and an aromatic ring in one molecule, a polybasic acid having two or more carboxy groups, and an oxidizing agent. As the oxidizing agent, hypochlorous acid, chlorous acid, chloric acid, perchloric acid, persulfuric acid, percarbonic acid, hydrogen peroxide, organic peroxides, or the like is used. The aromatic compound preferably contains a nitrogen-containing aromatic ring, and more preferably contains a primary amino group or a secondary amino group. The coating film-forming composition is used for, for example, forming a coating film on surface of a metal member.

Composition for forming coating, production method for surface-treated metal member, and production method for metal-resin composite

The coating film-forming composition is a solution of pH 6 to 9 and includes an aromatic compound having an amino group and an aromatic ring in one molecule, a polybasic acid having two or more carboxy groups, and a halide ion. The content of polybasic acid in the coating film-forming composition is 0.05 to 10 times the content of aromatic compound, and the halide ion concentration is 5 to 600 mM. A coating film with excellent adhesion to a resin can be formed on a surface of a metal member by bringing the coating film-forming composition into contact with the surface of the metal member.

Film-forming composition, method for producing surface-treated metal member, and method for producing metal-resin composite

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Hyogo, Japan

Tokuya Satomi