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:
Sep. 01, 2026
Filed:
Nov. 30, 2022
Applicant:
Ube Corporation, Ube, JP;
Inventors:
Assignee:
UBE Corporation, Ube, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01); C08J 5/18 (2006.01); H05K 1/02 (2006.01); H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
C08G 73/1042 (2013.01); C08G 73/1071 (2013.01); C08J 5/18 (2013.01); H05K 1/0346 (2013.01); C08J 2379/08 (2013.01); H05K 1/0237 (2013.01); H05K 2201/0154 (2013.01);
Abstract
A polyimide film including a polyimide prepared by reacting a tetracarboxylic acid component with a diamine component containing 4,4″-diamino-p-terphenyl, wherein the polyimide film has a glass transition temperature of higher than 290° C., and has a coefficient of linear expansion in the temperature range of 50° C. to 200° C. of 10 ppm/K or less.