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:
Dec. 02, 2025
Filed:
Sep. 14, 2020
Applicant:
Kolon Industries, Inc., Seoul, KR;
Inventors:
Hyo Jun Park, Seoul, KR;
Jong Won Yang, Seoul, KR;
Assignee:
KOLON INDUSTRIES, INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08G 73/1078 (2013.01); C08J 2379/08 (2013.01);
Abstract
Disclosed are a polyimide-based film and a method of producing the same, and more particularly, a polyimide-based film having excellent surface evenness and suppressed waviness due to low Kc of 1.55 or less and a method of producing the same.