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:
Mar. 01, 2022
Filed:
Jul. 19, 2017
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Aoi Daito, Kanagawa, JP;
Shinji Sekiguchi, Kanagawa, JP;
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); B05D 3/02 (2006.01); C08K 5/13 (2006.01); C08L 79/08 (2006.01); G02B 1/10 (2015.01); C08G 73/10 (2006.01); C08K 5/37 (2006.01); C08K 5/524 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B05D 3/0254 (2013.01); C08G 73/1042 (2013.01); C08G 73/1046 (2013.01); C08G 73/1078 (2013.01); C08K 5/13 (2013.01); C08L 79/08 (2013.01); G02B 1/10 (2013.01); B05D 2505/50 (2013.01); C08J 2379/08 (2013.01); C08K 5/37 (2013.01); C08K 5/524 (2013.01); C08L 2203/16 (2013.01);
Abstract
A method for producing a polyimide resin film, including: a coating step of forming a coated film by coating a polyimide resin composition containing a polyimide resin, an antioxidant, and a solvent on a substrate; and a drying step of drying the coated film in air at 180° C. or more, the antioxidant being a phenol-based antioxidant, and a content of the phenol-based antioxidant being 0.05 part by mass or more per 100 parts by mass of the polyimide resin.