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. 25, 2025
Filed:
Sep. 30, 2022
Applicants:
SK Innovation Co., Ltd., Seoul, KR;
SK IE Technology Co., Ltd., Seoul, KR;
Inventors:
Hyun Kyu Cho, Daejeon, KR;
Jin Hyung Park, Daejeon, KR;
Hyo Shin Kwak, Daejeon, KR;
Seung Min Jeon, Daejeon, KR;
Jong Chan Kim, Daejeon, KR;
Joo Hyun Lee, Daejeon, KR;
Assignees:
SK Innovation Co., Ltd., Seoul, KR;
SK ie technology Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 237/40 (2006.01); C08G 69/32 (2006.01); C08G 73/10 (2006.01); C08G 73/14 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C07C 237/40 (2013.01); C08G 69/32 (2013.01); C08G 73/1039 (2013.01); C08G 73/1042 (2013.01); C08G 73/1067 (2013.01); C08G 73/1078 (2013.01); C08G 73/14 (2013.01); C08J 5/18 (2013.01); C08J 2377/10 (2013.01); C08J 2379/08 (2013.01);
Abstract
The present invention relates to a diamine, and a polymer and film produced using the same. Specifically, the diamine may be significantly effectively used as a monomer for producing a polyimide-based film that is colorless and transparent and has improved mechanical strength.