The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2018
Filed:
May. 17, 2012
Takeshi Yatsuka, Otake, JP;
Chiho Ito, Otake, JP;
Yasuo Kakihara, Otake, JP;
Hirotoshi Kizumoto, Ohtsu, JP;
Koji Shoki, Ohtsu, JP;
Takeshi Yatsuka, Otake, JP;
Chiho Ito, Otake, JP;
Yasuo Kakihara, Otake, JP;
Hirotoshi Kizumoto, Ohtsu, JP;
Koji Shoki, Ohtsu, JP;
TODA KOGYO CORPORATION, Hiroshima, JP;
TOYOBO CO., LTD., Osaka, JP;
Abstract
An object of the present invention is to provide a conductive coating film formed on a polyimide-based insulating substrate by using a metal powder paste which can exhibit a good conductivity and good adhesion to the insulating substrate. By forming a resin cured layer having a solvent-soluble content of not more than 20% by weight and a thickness of not more than 5 μm on a polyimide-based insulating substrate; forming a metal powder-containing coating layer on the resin cured layer by using a metal powder paste; and then subjecting the resulting coating layer to heat treatment with superheated steam, it is possible to obtain a conductive coating film which can exhibit a good conductivity and good adhesion to the insulating substrate.