公开(公告)号：US10801112B2

公开(公告)日：2020-10-13

申请号：US16471126

申请日：2017-12-15

Applicant: MEC COMPANY LTD.

Inventor： Daisaku Akiyama ,  Itsuro Tomatsu ,  Yasutaka Amitani ,  Keisuke Joko ,  Tokuya Satomi

IPC: C23C22/05 ,  B32B15/08 ,  B32B15/20 ,  B32B37/12 ,  C08J5/12 ,  C23C22/18

Abstract: 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.

公开(公告)号：US10329453B2

公开(公告)日：2019-06-25

申请号：US16096827

申请日：2017-03-13

Applicant: MEC COMPANY LTD.

Inventor： Daisaku Akiyama ,  Yoichi Sengoku ,  Itsuro Tomatsu ,  Masao Okada ,  Ryoko Mitani ,  Keisuke Joko ,  Yasutaka Amitani ,  Tokuya Satomi ,  Masaru Takahashi

IPC: C09D183/04 ,  B32B15/08 ,  C09J11/08 ,  C09J183/04 ,  C09D7/63

Abstract: 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.