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:
May. 12, 2020
Filed:
Oct. 31, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Cheolmin Yun, Daejeon, KR;
BoRa Shin, Daejeon, KR;
Hye Won Jeong, Daejeon, KR;
Kyungjun Kim, Daejeon, KR;
HangAh Park, Daejeon, KR;
Assignee:
LG CHEM. LTD., Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
C09D 179/08 (2006.01); C08G 73/10 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
C09D 179/08 (2013.01); C08G 73/1003 (2013.01); C08G 73/1032 (2013.01); C08G 73/1039 (2013.01); C08G 73/1053 (2013.01); C08G 73/1071 (2013.01); C08G 73/1078 (2013.01); C08J 5/18 (2013.01); C08J 2379/08 (2013.01);
Abstract
The present invention relates to a polyimide-based solution that can be used to produce an isotropic transparent polyimide-based film with high heat resistance and excellent mechanical properties as well as high transmittance. A coating of the polyimide-based solution on a substrate has a haze of 1% or less after storage at a temperature of 30° C. and a humidity of 70% for 30 minutes.