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JPS6487685A - Production of liquid crystal composition of high resistivity - Google Patents

Production of liquid crystal composition of high resistivity

Info

Publication number
JPS6487685A
JPS6487685A JP62242569A JP24256987A JPS6487685A JP S6487685 A JPS6487685 A JP S6487685A JP 62242569 A JP62242569 A JP 62242569A JP 24256987 A JP24256987 A JP 24256987A JP S6487685 A JPS6487685 A JP S6487685A
Authority
JP
Japan
Prior art keywords
adsorbent
liquid crystal
crystal composition
composition
production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62242569A
Other languages
Japanese (ja)
Inventor
Katsutoshi Machida
Moronari Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seimi Chemical Co Ltd
Original Assignee
Seimi Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seimi Chemical Co Ltd filed Critical Seimi Chemical Co Ltd
Priority to JP62242569A priority Critical patent/JPS6487685A/en
Publication of JPS6487685A publication Critical patent/JPS6487685A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal Substances (AREA)

Abstract

PURPOSE:To obtain the title composition which can improve nonuniformity in display elements by admixing an adsorbent to a liquid crystal composition and separating the adsorbent to remove trace amounts of contaminants by adsorption. CONSTITUTION:An adsorbent, preferably silica gel, alumina, porous polymer, ion-exchange resin, or activated carbon, is added to a liquid crystal composition, dispersed by stirring, preferably under reduced pressure, especially lower than 10mmHg, for about 1-24hr. Then, the adsorbent is separated to remove trace amounts of undesired contaminants for display elements selectively to give the subject composition. The adsorption process is preferably carried out in 2 or more stages.
JP62242569A 1987-09-29 1987-09-29 Production of liquid crystal composition of high resistivity Pending JPS6487685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242569A JPS6487685A (en) 1987-09-29 1987-09-29 Production of liquid crystal composition of high resistivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242569A JPS6487685A (en) 1987-09-29 1987-09-29 Production of liquid crystal composition of high resistivity

Publications (1)

Publication Number Publication Date
JPS6487685A true JPS6487685A (en) 1989-03-31

Family

ID=17091024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242569A Pending JPS6487685A (en) 1987-09-29 1987-09-29 Production of liquid crystal composition of high resistivity

Country Status (1)

Country Link
JP (1) JPS6487685A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603731A1 (en) * 1992-12-16 1994-06-29 Hitachi Chemical Company, Ltd. Purification of liquid crystals and liquid crystal composition
EP0863127A3 (en) * 1997-03-06 1999-08-25 Mitsubishi Gas Chemical Company, Inc. Method of purifying liquid crystal
JP2001059086A (en) * 1992-07-24 2001-03-06 Merck Patent Gmbh Liquid crystal composition
JP2002194356A (en) * 2000-12-26 2002-07-10 Dainippon Ink & Chem Inc Method for producing liquid crystal composition
WO2009044600A1 (en) * 2007-10-04 2009-04-09 Nitto Denko Corporation Coating liquid and polarizing film
JP2012077308A (en) * 2011-11-21 2012-04-19 Dic Corp Method for producing liquid crystal composition
JP2012153892A (en) * 2012-02-28 2012-08-16 Dic Corp Method of manufacturing liquid crystal composition
JP5522319B1 (en) * 2013-04-05 2014-06-18 Ｄｉｃ株式会社 Method for producing the composition
WO2015098702A1 (en) * 2013-12-25 2015-07-02 Dic株式会社 Compound containing mesogenic group, and mixture, composition, and optically anisotropic body using said compound
US9562191B2 (en) 2015-04-01 2017-02-07 Citizen Finedevice Co., Ltd. Compositions and methods for removing ions from liquid crystal materials

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51106450A (en) * 1975-03-17 1976-09-21 Tokyo Shibaura Electric Co EKISHOHYOJIKINOSEIZOHO
JPS54159244A (en) * 1978-06-07 1979-12-15 Hitachi Ltd Liquid crystal display device
JPS57204512A (en) * 1981-06-11 1982-12-15 Sharp Corp Manufacture of liquid crystal display element
JPS581774A (en) * 1981-06-25 1983-01-07 Casio Comput Co Ltd Liquid crystal display device
JPS62173438A (en) * 1986-01-28 1987-07-30 Fujitsu Ltd Liquid crystal display element
JPS62210419A (en) * 1986-03-12 1987-09-16 Fujitsu Ltd Production of liquid crystal display element

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51106450A (en) * 1975-03-17 1976-09-21 Tokyo Shibaura Electric Co EKISHOHYOJIKINOSEIZOHO
JPS54159244A (en) * 1978-06-07 1979-12-15 Hitachi Ltd Liquid crystal display device
JPS57204512A (en) * 1981-06-11 1982-12-15 Sharp Corp Manufacture of liquid crystal display element
JPS581774A (en) * 1981-06-25 1983-01-07 Casio Comput Co Ltd Liquid crystal display device
JPS62173438A (en) * 1986-01-28 1987-07-30 Fujitsu Ltd Liquid crystal display element
JPS62210419A (en) * 1986-03-12 1987-09-16 Fujitsu Ltd Production of liquid crystal display element

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001059086A (en) * 1992-07-24 2001-03-06 Merck Patent Gmbh Liquid crystal composition
EP0603731A1 (en) * 1992-12-16 1994-06-29 Hitachi Chemical Company, Ltd. Purification of liquid crystals and liquid crystal composition
EP0863127A3 (en) * 1997-03-06 1999-08-25 Mitsubishi Gas Chemical Company, Inc. Method of purifying liquid crystal
JP2002194356A (en) * 2000-12-26 2002-07-10 Dainippon Ink & Chem Inc Method for producing liquid crystal composition
WO2009044600A1 (en) * 2007-10-04 2009-04-09 Nitto Denko Corporation Coating liquid and polarizing film
JP2012077308A (en) * 2011-11-21 2012-04-19 Dic Corp Method for producing liquid crystal composition
JP2012153892A (en) * 2012-02-28 2012-08-16 Dic Corp Method of manufacturing liquid crystal composition
JP5522319B1 (en) * 2013-04-05 2014-06-18 Ｄｉｃ株式会社 Method for producing the composition
WO2014162587A1 (en) * 2013-04-05 2014-10-09 Dic株式会社 Method for producing composition
US9441159B2 (en) 2013-04-05 2016-09-13 Dic Corporation Method for producing composition
WO2015098702A1 (en) * 2013-12-25 2015-07-02 Dic株式会社 Compound containing mesogenic group, and mixture, composition, and optically anisotropic body using said compound
CN105849137A (en) * 2013-12-25 2016-08-10 Dic株式会社 Compound containing mesogenic group, and mixture, composition, and optically anisotropic body using said compound
US20170003418A1 (en) * 2013-12-25 2017-01-05 Dic Corporation Compound containing mesogenic group, and mixture, composition, and optically anisotropic body using said compound
US10473820B2 (en) * 2013-12-25 2019-11-12 Dic Corporation Compound containing mesogenic group, and mixture, composition, and optically anisotropic body using said compound
US9562191B2 (en) 2015-04-01 2017-02-07 Citizen Finedevice Co., Ltd. Compositions and methods for removing ions from liquid crystal materials

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