FR2490666A1 - Cristal liquide cholesterique du type reentrant, et dispositif de detection de temperature utilisant un tel cristal liquide - Google Patents
Cristal liquide cholesterique du type reentrant, et dispositif de detection de temperature utilisant un tel cristal liquide Download PDFInfo
- Publication number
- FR2490666A1 FR2490666A1 FR8018774A FR8018774A FR2490666A1 FR 2490666 A1 FR2490666 A1 FR 2490666A1 FR 8018774 A FR8018774 A FR 8018774A FR 8018774 A FR8018774 A FR 8018774A FR 2490666 A1 FR2490666 A1 FR 2490666A1
- Authority
- FR
- France
- Prior art keywords
- liquid crystal
- type
- crystal according
- reentrant
- cholesteric
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 25
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 title description 5
- 230000003098 cholesteric effect Effects 0.000 claims abstract description 7
- 150000001840 cholesterol esters Chemical class 0.000 claims abstract description 4
- 239000004988 Nematic liquid crystal Substances 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- WLPATYNQCGVFFH-UHFFFAOYSA-N 2-phenylbenzonitrile Chemical group N#CC1=CC=CC=C1C1=CC=CC=C1 WLPATYNQCGVFFH-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- LJGMGXXCKVFFIS-IATSNXCDSA-N [(3s,8s,9s,10r,13r,14s,17r)-10,13-dimethyl-17-[(2r)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1h-cyclopenta[a]phenanthren-3-yl] decanoate Chemical compound C([C@@H]12)C[C@]3(C)[C@@H]([C@H](C)CCCC(C)C)CC[C@H]3[C@@H]1CC=C1[C@]2(C)CC[C@H](OC(=O)CCCCCCCCC)C1 LJGMGXXCKVFFIS-IATSNXCDSA-N 0.000 claims description 2
- 125000005910 alkyl carbonate group Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 claims 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 235000012000 cholesterol Nutrition 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 3
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 abstract 1
- 101150065749 Churc1 gene Proteins 0.000 abstract 1
- 102100038239 Protein Churchill Human genes 0.000 abstract 1
- 239000000470 constituent Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010587 phase diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000004990 Smectic liquid crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FNYLWPVRPXGIIP-UHFFFAOYSA-N Triamterene Chemical compound NC1=NC2=NC(N)=NC(N)=C2N=C1C1=CC=CC=C1 FNYLWPVRPXGIIP-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005599 alkyl carboxylate group Chemical group 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 p-hydroxy benzoyloxy Chemical group 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
- G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
- G01K11/165—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials of organic liquid crystals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/50—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing steroidal liquid crystal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal Substances (AREA)
- Liquid Crystal (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8018774A FR2490666A1 (fr) | 1980-08-29 | 1980-08-29 | Cristal liquide cholesterique du type reentrant, et dispositif de detection de temperature utilisant un tel cristal liquide |
| DE19813133118 DE3133118A1 (de) | 1980-08-29 | 1981-08-21 | "fluessigkristall und mit diesem betriebene temperaturanzeigevorrichtung" |
| CH5505/81A CH649574A5 (fr) | 1980-08-29 | 1981-08-26 | Cristal liquide cholesterique du type reentrant, et dispositif de detection de temperature le comprenant. |
| US06/296,302 US4410283A (en) | 1980-08-29 | 1981-08-26 | Cholesteric liquid crystal of the reentrant type and a temperature-detecting device entailing the use of a liquid crystal of this type |
| JP56134379A JPS5783578A (en) | 1980-08-29 | 1981-08-28 | Chlesteric liquid crystal and temperature sensor utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8018774A FR2490666A1 (fr) | 1980-08-29 | 1980-08-29 | Cristal liquide cholesterique du type reentrant, et dispositif de detection de temperature utilisant un tel cristal liquide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2490666A1 true FR2490666A1 (fr) | 1982-03-26 |
| FR2490666B1 FR2490666B1 (https=) | 1982-09-03 |
Family
ID=9245506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8018774A Granted FR2490666A1 (fr) | 1980-08-29 | 1980-08-29 | Cristal liquide cholesterique du type reentrant, et dispositif de detection de temperature utilisant un tel cristal liquide |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4410283A (https=) |
| JP (1) | JPS5783578A (https=) |
| CH (1) | CH649574A5 (https=) |
| DE (1) | DE3133118A1 (https=) |
| FR (1) | FR2490666A1 (https=) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4550981A (en) * | 1982-09-30 | 1985-11-05 | Hoffmann-La Roche Inc. | Liquid crystalline esters and mixtures |
| GB2155465B (en) * | 1984-01-23 | 1987-12-31 | Dainippon Ink & Chemicals | Tolan-type nematic liquid crystalline compounds |
| DE3710069A1 (de) * | 1987-03-27 | 1988-10-06 | Merck Patent Gmbh | Ethinderivate |
| US5394824A (en) * | 1992-10-07 | 1995-03-07 | Johnson, Jr.; Lawrence F. | Thermochromic sensor for locating an area of contact |
| US5487352A (en) | 1994-09-21 | 1996-01-30 | John R. Williams | Temperature indicator for cooked meats |
| EP2221592A1 (en) | 2009-01-22 | 2010-08-25 | Stichting Dutch Polymer Institute | Multifunctional optical sensor |
| CN112903136A (zh) * | 2020-09-21 | 2021-06-04 | 河北工业大学 | 一种示温装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697297A (en) * | 1970-10-22 | 1972-10-10 | Ncr Co | Gelatin-gum arabic capsules containing cholesteric liquid crystal material and dispersions of the capsules |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4137192A (en) * | 1974-01-25 | 1979-01-30 | Canon Kabushiki Kaisha | Liquid crystalline composition |
| DE2507904A1 (de) * | 1975-02-24 | 1976-09-02 | Harting Elektro W | Anschlussverteiler |
| GB1556994A (en) * | 1975-09-03 | 1979-12-05 | Secr Defence | Optically active cyanobiphenyl compounds and liquid crystal materials and devices containing them |
| GB1596012A (en) * | 1976-08-16 | 1981-08-19 | Secr Defence | Optically active liquid crystal materials and liquid crystal devices containing them |
| CH626914A5 (https=) * | 1977-03-08 | 1981-12-15 | Bbc Brown Boveri & Cie | |
| US4140016A (en) * | 1977-04-07 | 1979-02-20 | Becton, Dickinson And Company | Novel compositions, devices and method |
| FR2404040A1 (fr) * | 1977-09-23 | 1979-04-20 | Thomson Csf | Cristal liquide a formule chimique contenant un noyau stilbene, et dispositif utilisant un tel cristal liquide |
| GB2009219B (en) * | 1977-11-02 | 1982-04-28 | Secr Defence | Liquid ctystal material mixtures and devices incorporating such mixtures |
-
1980
- 1980-08-29 FR FR8018774A patent/FR2490666A1/fr active Granted
-
1981
- 1981-08-21 DE DE19813133118 patent/DE3133118A1/de not_active Ceased
- 1981-08-26 CH CH5505/81A patent/CH649574A5/fr not_active IP Right Cessation
- 1981-08-26 US US06/296,302 patent/US4410283A/en not_active Expired - Fee Related
- 1981-08-28 JP JP56134379A patent/JPS5783578A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3697297A (en) * | 1970-10-22 | 1972-10-10 | Ncr Co | Gelatin-gum arabic capsules containing cholesteric liquid crystal material and dispersions of the capsules |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/79 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US4410283A (en) | 1983-10-18 |
| FR2490666B1 (https=) | 1982-09-03 |
| CH649574A5 (fr) | 1985-05-31 |
| DE3133118A1 (de) | 1982-04-29 |
| JPS5783578A (en) | 1982-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |