JPS6487685A - Production of liquid crystal composition of high resistivity - Google Patents
Production of liquid crystal composition of high resistivityInfo
- 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
Links
- 239000000203 mixture Substances 0.000 title abstract 5
- 239000004973 liquid crystal related substance Substances 0.000 title abstract 3
- 239000003463 adsorbent Substances 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 239000000356 contaminant Substances 0.000 abstract 2
- 238000001179 sorption measurement Methods 0.000 abstract 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000003456 ion exchange resin Substances 0.000 abstract 1
- 229920003303 ion-exchange polymer Polymers 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000000741 silica gel Substances 0.000 abstract 1
- 229910002027 silica gel Inorganic materials 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
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.
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)
| 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)
| 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 |
-
1987
- 1987-09-29 JP JP62242569A patent/JPS6487685A/en active Pending
Patent Citations (6)
| 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)
| 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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