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:
Dec. 14, 2016
Applicant:
Zeon Corporation, Chiyoda-ku, Tokyo, JP;
Inventors:
Shunpei Nakajima, Tokyo, JP;
Akira Ikeda, Tokyo, JP;
Masakazu Saito, Tokyo, JP;
Manabu Ito, Tokyo, JP;
Assignee:
ZEON CORPORATION, Chiyoda-ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/38 (2006.01); C08F 222/32 (2006.01); G02F 1/13363 (2006.01); G02F 1/13 (2006.01); G02B 5/30 (2006.01); C09K 19/54 (2006.01); C08F 222/24 (2006.01);
U.S. Cl.
CPC ...
C09K 19/3861 (2013.01); C08F 222/24 (2013.01); C09K 19/38 (2013.01); C09K 19/54 (2013.01); G02B 5/30 (2013.01); G02B 5/3016 (2013.01); G02F 1/13 (2013.01); G02F 1/13363 (2013.01); C08F 2800/20 (2013.01);
Abstract
A liquid crystal composition including: a polymerizable liquid crystal compound capable of expressing birefringence with inverse wavelength dispersion; and a (meth)acrylate compound containing two or more (meth)acryloyl groups per one molecule, wherein: an amount of the (meth)acrylate compound is 8 parts by weight or less, the amount being relative to 100 parts by weight of a sum total of the polymerizable liquid crystal compound and the (meth)acrylate compound.