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:
Oct. 27, 2020
Filed:
May. 29, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Byoung Jun Mun, Daejeon, KR;
Joong Hoon Lee, Daejeon, KR;
Sung Ho Hwang, Daejeon, KR;
Sei Jung Park, Daejeon, KR;
Heon-Sik Song, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 1/14 (2015.01); B29D 11/00 (2006.01); B29C 55/12 (2006.01); C08J 5/18 (2006.01); C08F 220/14 (2006.01); B29C 55/00 (2006.01); F21V 8/00 (2006.01); C08L 33/12 (2006.01); B29L 11/00 (2006.01); B29K 33/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3075 (2013.01); B29C 55/005 (2013.01); B29C 55/12 (2013.01); B29D 11/00 (2013.01); B29D 11/00788 (2013.01); C08F 220/14 (2013.01); C08J 5/18 (2013.01); G02B 1/14 (2015.01); G02B 5/30 (2013.01); G02B 5/305 (2013.01); G02B 6/0056 (2013.01); B29D 11/0073 (2013.01); B29D 11/00644 (2013.01); B29K 2033/12 (2013.01); B29L 2011/00 (2013.01); C08J 2333/12 (2013.01); C08L 33/12 (2013.01);
Abstract
The optical film according to the present invention uses polymethylmethacrylate that does not comprise cyclic monomers, but has excellent dimensional stability and optical properties, and thus, can be usefully used as a protection film of a polarization plate.