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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.:

US 10647920 B1

PDFFull Text
Expired
Date of Patent:
May. 12, 2020

Filed:

Dec. 14, 2016

Liquid crystalline composition, liquid crystal cured layer, method for producing same, and optical film

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:

Kenjia IP Law PC

Primary Examiner:

Vu A Nguyen

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.

Find Patent Forward Citations

Nakajima, Shunpei. (2020). Liquid crystalline composition, liquid crystal cured layer, method for producing same, and optical film (U.S. Patent No. 10647920). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10647920

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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