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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.:

US 12404371 B1

PDFFull Text
Date of Patent:
Sep. 02, 2025

Filed:

Jan. 09, 2020

Poly(amide-imide) copolymer, composition and polymer film comprising thereof

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Tae Seob Lee, Daejeon, KR;

Yoon Bin Lim, Daejeon, KR;

Jae Gu Lim, Daejeon, KR;

Seung Joon Lim, Daejeon, KR;

Se Jeong Kim, Daejeon, KR;

Woo Han Kim, Daejeon, KR;

Gieun Park, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

ROTHWELL, FIGG, ERNST & MANBECK, P.C.

Primary Examiner:

David J Buttner

Assistant Examiner:

Surbhi M Du

Int. Cl.
CPC ...
C08G 73/14 (2006.01); C08F 290/14 (2006.01); C08G 73/10 (2006.01); C08G 73/12 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C08G 73/14 (2013.01); C08F 290/145 (2013.01); C08G 73/1039 (2013.01); C08G 73/1042 (2013.01); C08G 73/12 (2013.01); C08G 73/123 (2013.01); C08G 73/126 (2013.01); C08J 5/18 (2013.01); C08L 2203/16 (2013.01);
Abstract

The present disclosure relates to a poly(amide-imide) copolymer in which each of at least one of imide repeating units and at least one of amide repeating units is substituted with a functional group including Chemical Formula 1, wherein, Ris hydrogen or an alkyl group having 1 to 10 carbon atoms, and L is a single bond or an alkylene having 1 to 10 carbon atoms, and a composition and a polymer film comprising the same.

Find Patent Forward Citations

Lee, Tae. (2025). Poly(amide-imide) copolymer, composition and polymer film comprising thereof (U.S. Patent No. 12404371). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12404371

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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