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. 10, 2019
Filed:
Apr. 24, 2017
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Masao Morimoto, Osaka, JP;
Noriyuki Hida, Osaka, JP;
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C07D 513/04 (2006.01); C08F 222/20 (2006.01); C09B 31/14 (2006.01); C09B 33/16 (2006.01); C09B 35/34 (2006.01); C09K 19/38 (2006.01); C09K 19/60 (2006.01); G02B 1/08 (2006.01); G02B 5/30 (2006.01); C09K 19/30 (2006.01); C09B 31/043 (2006.01); C08F 222/10 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C07D 513/04 (2013.01); C08F 222/1006 (2013.01); C08F 222/20 (2013.01); C09B 31/043 (2013.01); C09B 31/14 (2013.01); C09B 33/16 (2013.01); C09B 35/34 (2013.01); C09K 19/3068 (2013.01); C09K 19/3809 (2013.01); C09K 19/3852 (2013.01); C09K 19/601 (2013.01); G02B 1/08 (2013.01); G02B 5/3016 (2013.01); C08F 2800/20 (2013.01); C09K 2019/0448 (2013.01);
Abstract
Provided is an optical film which has a maximum absorption at a wavelength in the range of 600 to 680 nm, has a high dichroic ratio, and is excellent in light resistance. The optical film includes: a polymer of a polymerizable liquid crystal compound; and a compound represented by the following general formula (1).