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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 11549013 B1

PDFFull Text
Date of Patent:
Jan. 10, 2023

Filed:

Jul. 17, 2018

Polyimide copolymer and polyimide film using same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Cheolmin Yun, Daejeon, KR;

Kyungjun Kim, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Rothwell, Figg, Ernst & Manbeck, P.C.

Primary Examiner:

Ana L Woodward

Int. Cl.
CPC ...
C08L 79/08 (2006.01); C08G 73/10 (2006.01); C08G 77/26 (2006.01); C08G 77/00 (2006.01); C08K 5/20 (2006.01); C08K 5/3415 (2006.01);
U.S. Cl.
CPC ...
C08L 79/08 (2013.01); C08G 73/106 (2013.01); C08G 73/1032 (2013.01); C08G 73/1039 (2013.01); C08G 73/1067 (2013.01); C08G 77/26 (2013.01); C08G 77/80 (2013.01); C08K 5/20 (2013.01); C08K 5/3415 (2013.01); C08L 2201/08 (2013.01); C08L 2201/10 (2013.01); C08L 2203/16 (2013.01); C08L 2203/20 (2013.01);
Abstract

A polyimide copolymer according to the present invention has a particular structure in which siloxane structures are distributed in a nanosize in a polymer and thus enables excellent transparency, heat resistance, mechanical strength and flexibility and effective reduction of residual stress, and thus can be used in various fields such as a substrate for a device, a cover substrate for a display, an optical film, an integrated circuit (IC) package, an adhesive film, a multi-layer flexible printed circuit (FPC), tape, a touch panel and a protective film for an optical disk.

Find Patent Forward Citations

Yun, Cheolmin. (2023). Polyimide copolymer and polyimide film using same (U.S. Patent No. 11549013). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11549013

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

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