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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 10927300 B1

PDFFull Text
Date of Patent:
Feb. 23, 2021

Filed:

Oct. 17, 2017

Spontaneous alignment assistant for liquid crystal compositions

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Masaomi Kimura, Kita-adachi-gun, JP;

Yuuichi Inoue, Kita-adachi-gun, JP;

Hidenari Akiyama, Kita-adachi-gun, JP;

Masanao Hayashi, Kita-adachi-gun, JP;

Tetsuo Kusumoto, Kita-adachi-gun, JP;

Assignee:

DIC CORPORATION, Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Ruiyun Zhang

Int. Cl.
CPC ...
C09K 19/56 (2006.01); C07C 69/54 (2006.01); C07C 69/612 (2006.01); C07D 317/64 (2006.01); C07D 319/06 (2006.01); C09K 19/20 (2006.01); C09K 19/34 (2006.01); C09K 19/14 (2006.01); G02F 1/139 (2006.01); C07D 309/30 (2006.01); G02F 1/13 (2006.01); C07D 309/32 (2006.01); C07D 305/06 (2006.01); C09K 19/12 (2006.01); C09K 19/30 (2006.01); G02F 1/1337 (2006.01); C07D 309/06 (2006.01); G02F 1/1362 (2006.01);
U.S. Cl.
CPC ...
C09K 19/56 (2013.01); C07C 69/54 (2013.01); C07C 69/612 (2013.01); C07D 305/06 (2013.01); C07D 309/06 (2013.01); C07D 309/30 (2013.01); C07D 309/32 (2013.01); C07D 317/64 (2013.01); C07D 319/06 (2013.01); C09K 19/12 (2013.01); C09K 19/14 (2013.01); C09K 19/2007 (2013.01); C09K 19/30 (2013.01); C09K 19/3402 (2013.01); C09K 19/3405 (2013.01); G02F 1/13 (2013.01); G02F 1/139 (2013.01); G02F 1/1337 (2013.01); C09K 2019/3422 (2013.01); C09K 2323/00 (2020.08); C09K 2323/02 (2020.08); G02F 1/1362 (2013.01);
Abstract

The spontaneous orientation aid for a liquid crystal composition provides storage stability and allows liquid crystal molecules to be vertically aligned without a PI layer when added to a liquid crystal composition. The spontaneous orientation aid for a liquid crystal composition includes a compound having a partial structure represented by formula (i), particularly in which Kis represented by one of formula (K-1) to formula (K-11). When used in a liquid crystal composition, the spontaneous orientation aid can adsorb to substrates sandwiching a liquid crystal composition (liquid crystal layer) and keep the liquid crystal molecules aligned in a vertical direction. The spontaneous orientation aid makes it possible to align liquid crystal molecules without a PI layer (to induce vertical alignment of liquid crystal molecules under no applied voltage and to achieve horizontal alignment of the liquid crystal molecules under an applied voltage).

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