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.

Date of Patent:
Nov. 22, 2016

Filed:

Jun. 11, 2015
Applicants:

Jnc Corporation, Tokyo, JP;

Jnc Petrochemical Corporation, Tokyo, JP;

Inventors:

Takahiro Kobayashi, Ichihara, JP;

Takahiro Kubo, Ichihara, JP;

Yasuyuki Sasada, Ichihara, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/40 (2006.01); C09K 19/34 (2006.01); C07D 309/22 (2006.01); C07D 309/18 (2006.01); C09K 19/32 (2006.01);
U.S. Cl.
CPC ...
C09K 19/3402 (2013.01); C07D 309/18 (2013.01); C07D 309/22 (2013.01); C09K 19/32 (2013.01); C09K 19/3447 (2013.01); C09K 19/3455 (2013.01); C09K 19/3458 (2013.01); C09K 19/406 (2013.01); C09K 2019/3422 (2013.01); C09K 2019/3425 (2013.01);
Abstract

A liquid crystal compound is provided that satisfies at least one physical property, including high stability to ultraviolet light and heat, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the compound, and a liquid crystal display device including the composition is also provided. The composition contains the compound, and the liquid-crystal display device includes the composition: wherein, for example, Rand Rare alkyl; rings A, A, Aand Aare 1,4-cyclohexylene or 1,4-phenylene; and P is a divalent group represented by formula (pr-1) or (pr-2): wherein, for example, Z, Z, Zand Zare a single bond or alkylene; and a, b, c and d are 0, 1 or 2, and a sum of a, b, c and d is 5 or less.


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