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. 10, 2026
Filed:
Jan. 18, 2023
Dongwoo Fine-chem Co., Ltd., Jeollabuk-do, KR;
Ecoprohn Co., Ltd., Chungcheongbuk-do, KR;
Dong Ki Kim, Jeollabuk-do, KR;
Young Chul Park, Jeollabuk-do, KR;
Eun Sang Lee, Daejeon, KR;
Sung Mook Choi, Gyeonggi-do, KR;
DONGWOO FINE-CHEM CO., LTD., Jeollabuk-do, KR;
EcoProHN Co., LTD., Chungcheongbuk-do, KR;
Abstract
A polyimide precursor composition according to an exemplary embodiment includes an imide precursor having an organic group derived from a cyclic ether group-containing compound. A polyimide film formed using the polyimide precursor composition has improved heat resistance and mechanical properties, and has high absorbance in a wavelength range in an ultraviolet region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile