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:
Apr. 01, 2025
Filed:
May. 29, 2020
Applicants:
SK Innovation Co., Ltd., Seoul, KR;
SK IE Technology Co., Ltd., Seoul, KR;
Inventors:
Sangyoon Park, Daejeon, KR;
Hye Ri Kim, Daejeon, KR;
Hyejin Kim, Daejeon, KR;
Seungmin Jeon, Daejeon, KR;
Jisang Jeong, Daejeon, KR;
Assignees:
SK Innovation Co., Ltd., Seoul, KR;
SK ic technology Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/3472 (2006.01); C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
C08K 5/3472 (2013.01); C08G 73/1007 (2013.01);
Abstract
Provided is a polyamide-imide film including: a polyamide-imide resin and a porphyrin-based dye. The polyamide-imide film has excellent optical properties, and, in particular, may maintain an excellent yellow index even in a repeated temperature change environment.