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. 31, 2020
Filed:
Apr. 11, 2016
Applicant:
Jfe Chemical Corporation, Tokyo, JP;
Inventors:
Youhei Inoue, Chiba, JP;
Hiroaki Mori, Chiba, JP;
Assignee:
JFE CHEMICAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
C08G 73/1067 (2013.01); C08G 73/1007 (2013.01); C08G 73/1042 (2013.01); C08G 73/1057 (2013.01);
Abstract
A polyamide acid composition and a polyimide composition are obtained from a tetracarboxylic acid compound containing an aromatic tetracarboxylic acid compound having a naphthalene skeleton and a diamine compound containing an aromatic diamine compound having a biphenyl skeleton.