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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 8956551 B1

PDFFull Text
Date of Patent:
Feb. 17, 2015

Filed:

Jul. 10, 2013

Liquid crystal compound having fluorovinyl group, liquid crystal composition and liquid crystal display device

Applicants:

Yasuyuki Gotoh, Tokyo, JP;

Keiji Kimura, Ichihara, JP;

Inventors:

Yasuyuki Gotoh, Tokyo, JP;

Keiji Kimura, Ichihara, JP;

Assignees:

JNC Corporation, Tokyo, JP;

JNC Petrochemical Corporation, Tokyo, JP;

Attorney:

Hogan Lovells US LLP

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
C09K 19/34 (2006.01); C09K 19/30 (2006.01); C09K 19/02 (2006.01); G02F 1/1333 (2006.01); C07C 43/20 (2006.01); C07D 319/06 (2006.01); C07C 19/08 (2006.01); C09K 19/08 (2006.01); C09K 19/12 (2006.01); C09K 19/06 (2006.01); C09K 19/14 (2006.01); C09K 19/20 (2006.01); C09K 19/32 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C09K 19/08 (2013.01); C09K 19/126 (2013.01); C09K 19/3402 (2013.01); C09K 19/3469 (2013.01); C09K 19/06 (2013.01); C09K 19/3444 (2013.01); C09K 19/3003 (2013.01); C09K 19/14 (2013.01); C09K 19/2007 (2013.01); C09K 19/12 (2013.01); C09K 19/322 (2013.01); C09K 2019/0459 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/123 (2013.01); C09K 2019/2035 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/304 (2013.01); C09K 2019/308 (2013.01); C09K 2019/3422 (2013.01); C09K 2019/3425 (2013.01);
Abstract

A liquid crystal compound having a high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent solubility in other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1): wherein, for example, Ris fluorine or alkyl having 1 to 10 carbons; ring Aand ring Aare 1,4-phenylene, or 1,4-phenylene in which at least one of hydrogen is replaced by fluorine; Z, Zand Zare a single bond; Land Lare hydrogen or fluorine; Xis fluorine or —CF; and m is 1, and n is 0.

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