Title:
PHOTOACTIVE AGENT, METHOD FOR MANUFACTURING SAME, AND METHOD FOR MANUFACTURING LIQUID CRYSTAL ALIGNING AGENT COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/142952
Kind Code:
A1
Abstract:
Disclosed are a photoactive agent, a method for manufacturing the photoactive agent, and a method for manufacturing a liquid crystal aligning agent, wherein the photoactive agent has a N-O-C=O-C band and is mixed with a liquid crystal aligning agent, the method for manufacturing the photoactive agent comprises: a primary solution preparation step of mixing and dissolving cyclohexanone oxime in a solvent to prepare a primary solution; a secondary solution preparation step of mixing an anhydride with the primary solution to prepare a secondary solution; a reaction step of carrying out a synthesis reaction of a photoactive agent in a reaction solution obtained by mixing a catalyst with the secondary solution; and an extraction step of extracting the photoactive agent in the reaction step, and the method for manufacturing a liquid crystal aligning agent comprises: a photoactive agent mixing step of mixing a photoactive agent with an aligning stock solution at a predetermined ratio to prepare a photoactive agent mixed solution; a pyrrolidinone mixing step of mixing pyrrolidinone with the photoactive agent mixed solution; a 2-butoxyethanol mixing step of mixing 2-butoxyethanol with the photoactive agent mixed solution; a gamma-butyrolactone mixing step of mixing gamma-butyrolactone with the photoactive agent mixed solution; and a stirring step of, after the 2-butoxyethanol mixing step, stirring the photoactive agent mixed solution at a low temperature to prepare the liquid crystal aligning agent.
Inventors:
SHIN DONG MYUNG (KR)
LEE IN HYE (KR)
LEE IN HYE (KR)
Application Number:
PCT/KR2018/000820
Publication Date:
July 25, 2019
Filing Date:
January 18, 2018
Export Citation:
Assignee:
SHIN DONG MYUNG (KR)
International Classes:
C09K19/54; C07C249/12; C07C251/44; C09K19/56
Foreign References:
| JP2007279421A | 2007-10-25 | |||
| JP2017003965A | 2017-01-05 | |||
| KR20140072621A | 2014-06-13 | |||
| KR20130067067A | 2013-06-21 |
Other References:
DIKUSAR, E. A. ET AL.: "Preparative Synthesis of Cyclohexanone Oxime Esters", RUSSIAN JOURNAL OF ORGANIC CHEMISTRY, vol. 44, no. 9, 2008, pages 1389 - 1391, XP055626553
Attorney, Agent or Firm:
KIM, Hojong (KR)
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