公开(公告)号：US20190127606A1

公开(公告)日：2019-05-02

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 ,  C09D7/63 ,  C09J183/04

CPC classification number: C09D183/04 ,  B32B15/08 ,  B32B2255/06 ,  B32B2255/24 ,  C08K3/16 ,  C08K5/092 ,  C08K5/17 ,  C09D5/00 ,  C09D5/002 ,  C09D7/40 ,  C09D7/61 ,  C09D7/63 ,  C09D177/00 ,  C09J11/04 ,  C09J11/06 ,  C09J11/08 ,  C09J183/04 ,  C23C26/00 ,  H05K3/38

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.

公开(公告)号：US20170167033A1

公开(公告)日：2017-06-15

申请号：US15323856

申请日：2015-06-05

Applicant: MEC COMPANY LTD.

Inventor： Yoichi SENGOKU ,  Mina RAIJO ,  Daisaku AKIYAMA

IPC: C23F1/28

CPC classification number: C23F1/28

Abstract: Disclosed is an etching agent for steel. The etching agent is an acidic aqueous solution including ferrous ions, ferric ions, and an acetylene group-containing water-soluble compound. The concentration of ferrous ion A % by weight and the concentration of ferric ion B % by weight in the etching agent is preferably from 0.1 to 2.5. Also disclosed is a replenishing liquid that is added to the etching agent when the etching agent is continuously or repeatedly used. The replenishing liquid is an aqueous solution including an acetylene group-containing water-soluble compound.