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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 9458125 B1

PDFFull Text
Date of Patent:
Oct. 04, 2016

Filed:

Dec. 12, 2013

Octahydro binaphthyl-based chiral compound-containing liquid-crystal composition and optical element

Applicants:

Jnc Corporation, Tokyo, JP;

Jnc Petrochemical Corporation, Tokyo, JP;

Inventors:

Koki Sago, Chiba, JP;

Shin-Ichi Yamamoto, Chiba, JP;

Assignees:

JNC CORPORATION, Tokyo, JP;

JNC PETROCHEMICAL CORPORATION, Tokyo, JP;

Attorney:

Jianq Chyun IP Office

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C07D 317/10 (2006.01); C07D 319/06 (2006.01); C07D 321/00 (2006.01); G02F 1/137 (2006.01); C09K 19/58 (2006.01); C07D 239/26 (2006.01); C09K 19/54 (2006.01); C07D 309/04 (2006.01); C07D 317/12 (2006.01); C07D 405/12 (2006.01); C07D 407/12 (2006.01); C07D 493/18 (2006.01); C09K 19/20 (2006.01); C09K 19/32 (2006.01); C09K 19/34 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C07D 317/10 (2013.01); C07D 239/26 (2013.01); C07D 309/04 (2013.01); C07D 317/12 (2013.01); C07D 319/06 (2013.01); C07D 321/00 (2013.01); C07D 405/12 (2013.01); C07D 407/12 (2013.01); C07D 493/18 (2013.01); C09K 19/20 (2013.01); C09K 19/34 (2013.01); C09K 19/542 (2013.01); C09K 19/586 (2013.01); C09K 19/588 (2013.01); G02F 1/137 (2013.01); C09K 2019/0411 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/323 (2013.01); C09K 2019/325 (2013.01); C09K 2019/3422 (2013.01); C09K 2019/3427 (2013.01); C09K 2019/3433 (2013.01); G02F 2001/13793 (2013.01);
Abstract

A liquid-crystal composition is composed of at least one chiral compound represented by general formula (K1) or (K2) and at least one achiral liquid-crystal component: (wherein, in formulas (K1) and (K2), Ris, for example, alkyl having 1 to 5 carbons, Ris, for example, alkyl having 1 to 20 carbons, ring Ais, for example, 1,4-phenylene, Xis, for example, a single bond, Yis, for example, —(CH)—, n is an integer from 0 to 20, Zis, for example, a single bond, mk1 is, for example, an integer from 2 to 4, and nk1 and nk2 are, for example, an integer from 0 to 2).

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