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:
Jun. 14, 2022
Filed:
Feb. 19, 2020
Applicant:
Dupont Electronics, Inc., Wilmington, DE (US);
Inventors:
Joseph Casey Johnson, Pickerington, OH (US);
Kostantinos Kourtakis, Media, PA (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/02 (2019.01); C08J 5/18 (2006.01); C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08G 73/1082 (2013.01); C08J 2379/08 (2013.01);
Abstract
In a first aspect, a polyimide film includes a dianhydride, a fluorinated aromatic diamine and an aliphatic diamine. The polyimide film has a b* of less than one for a film thickness of at least 30 microns and a glass transition temperature of less than 300° C. In a second aspect, an electronic device includes the polyimide film of the first aspect.