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. 19, 2023
Filed:
Jan. 09, 2020
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/28 (2006.01); B29C 48/00 (2019.01); B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 27/08 (2006.01); B32B 37/15 (2006.01); B32B 38/10 (2006.01); C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
B32B 27/281 (2013.01); B29C 48/0021 (2019.02); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/08 (2013.01); B32B 37/15 (2013.01); B32B 38/10 (2013.01); B32B 2250/03 (2013.01); B32B 2250/04 (2013.01); B32B 2457/08 (2013.01); C08G 73/1067 (2013.01);
Abstract
Provided is a film including a matrix layer formed with polyimide for a matrix obtained from pyromellitic dianhydride and m-tolidine, a first adhesive layer formed on one surface of the matrix layer and formed with first thermoplastic polyimide, and a second adhesive layer formed on the other surface of the matrix layer and formed with second thermoplastic polyimide, wherein maximum height roughness of a first interface between the matrix layer and the first adhesive layer and maximum height roughness of a second interface between the matrix layer and the second adhesive layer are 1.0 μm or less.