WO1981000853A1 - Materiau de cristaux liquides ayant une valeur d'anisotropie optique faible et son procede de fabrication - Google Patents

Materiau de cristaux liquides ayant une valeur d'anisotropie optique faible et son procede de fabrication

Info

Publication number
WO1981000853A1
WO1981000853A1 PCT/SU1979/000095 SU7900095W WO8100853A1 WO 1981000853 A1 WO1981000853 A1 WO 1981000853A1 SU 7900095 W SU7900095 W SU 7900095W WO 8100853 A1 WO8100853 A1 WO 8100853A1
Authority
WO
WIPO (PCT)
Prior art keywords
acid
water
maτeρiala
veschesτvο
weight
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.)
Ceased
Application number
PCT/SU1979/000095
Other languages
English (en)
French (fr)
Russian (ru)
Inventor
M Barnik
A Ivashchenko
E Kovshev
I Agafonova
M Grebenkin
V Shoshin
L Blinov
V Titov
L Karamysheva
N Shtykov
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB8115636A priority Critical patent/GB2072214B/en
Priority to PCT/SU1979/000095 priority patent/WO1981000853A1/ru
Priority to JP50002579A priority patent/JPS56501284A/ja
Priority to DE19792953841 priority patent/DE2953841A1/de
Publication of WO1981000853A1 publication Critical patent/WO1981000853A1/ru
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • 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
    • C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
    • 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
    • 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
    • C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters

Definitions

  • the indicated material also has an unacceptably low ⁇ GS value. , ⁇ what is the variation of the magnitude ⁇ ⁇ . Depending on the structure, the practitioner is not able to use it.
  • This material is mixed by the compilers, each of which receives material from both: dielectric and non-volatile products. The resulting mixture is heated while stirring and before the mixture is transferred to a liquid, after which it is cooled down to a room temperature.
  • the objective of the present invention was to produce a liquid crystalline material having a lower imprisonment.
  • lowering ⁇ ⁇ will increase the loss of liquid and crystalline toxic substances
  • the material used is liquid crystalline material, which is a small component of the material that prevents the use of high-level electricity and / or
  • ⁇ l ⁇ l ⁇ yaizhenn ⁇ e value ⁇ l ⁇ iches ⁇ y aniz ⁇ ii ma ⁇ e ⁇ iala, ⁇ i e ⁇ m ⁇ zhches ⁇ v ⁇ vesches ⁇ va ⁇ s ⁇ s ⁇ avlyae ⁇ 4,9-30,0% by weight, and ⁇ liches ⁇ v ⁇ vesches ⁇ va ⁇ s ⁇ s ⁇ avlyae ⁇ 5 70,0-95,1% by weight.
  • This material is provided .
  • a special white, turbid liquid in a liquid crystalline state and a colorless flowing liquid in the presence of a high degree of solubility and emissivity are provided .
  • Table I there are examples illustrating the invention, with a quick display of the material and its properties.
  • the offered liquid compositions have a lower value of the optical value than the known materials, which is
  • a flask containing an agitator and a droplet flask holds 8.6 g of 2-acid-4-hydroxybutyric acid and 50 ml of pyridine. When stirring and stirring and cooling, add 7.72 g
  • reaction mass is poured into the acidified ice water.
  • the precipitated sediment is filtered and washed out of the water for a neutral reaction.
  • the garden is dried on the air. Install from the bezel / t. Pl. 152-210 ⁇ /, and then from
  • the mixture is heated and stirred at ⁇ 00 ° C and kept at a temperature of I hour. Cool to 20 ° C and pour into water.
  • Wastes wash out and dry over ⁇ ⁇ ⁇ »Partly, it turns out to rot, and it stops through silica gel.
  • Amide 2-acid-4- / ⁇ -n-heptylbenzoyloxy / -benzoic acid $ 73.4, mp 58- ⁇ 6 ⁇ ° ⁇ / from ethanol /.
  • the target price of the product is $ 45, t.pl, 25-28 ° C / w / Hexane

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Liquid Crystal Substances (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Joining Of Building Structures In Genera (AREA)
PCT/SU1979/000095 1979-09-28 1979-09-28 Materiau de cristaux liquides ayant une valeur d'anisotropie optique faible et son procede de fabrication Ceased WO1981000853A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB8115636A GB2072214B (en) 1979-09-28 1979-09-28 Liquid crystal material with low value of optical anisotropy and method of making it
PCT/SU1979/000095 WO1981000853A1 (fr) 1979-09-28 1979-09-28 Materiau de cristaux liquides ayant une valeur d'anisotropie optique faible et son procede de fabrication
JP50002579A JPS56501284A (cs) 1979-09-28 1979-09-28
DE19792953841 DE2953841A1 (de) 1979-09-28 1979-09-28 Liquid crystal material with low value of optical anisotropy and method of making it

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOSU79/00095 1979-09-28
PCT/SU1979/000095 WO1981000853A1 (fr) 1979-09-28 1979-09-28 Materiau de cristaux liquides ayant une valeur d'anisotropie optique faible et son procede de fabrication

Publications (1)

Publication Number Publication Date
WO1981000853A1 true WO1981000853A1 (fr) 1981-04-02

Family

ID=21616562

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SU1979/000095 Ceased WO1981000853A1 (fr) 1979-09-28 1979-09-28 Materiau de cristaux liquides ayant une valeur d'anisotropie optique faible et son procede de fabrication

Country Status (4)

Country Link
JP (1) JPS56501284A (cs)
DE (1) DE2953841A1 (cs)
GB (1) GB2072214B (cs)
WO (1) WO1981000853A1 (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460770A (en) * 1981-06-18 1984-07-17 Hoffmann-La Roche Inc. Liquid crystal mixture
US4490277A (en) * 1981-05-29 1984-12-25 Grebenkin Mikhail F Mesomorphic material with low optical anisotropy and process for producing same
US4560496A (en) * 1983-09-30 1985-12-24 Dietrich Demus Liquid crystalline nematic compounds
US4582986A (en) * 1980-11-21 1986-04-15 Stockburger H Method and apparatus for the characteristic marking and/or identification of a data-carrier
US4664840A (en) * 1979-05-28 1987-05-12 E. Merck Liquid crystal compounds

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603018A (en) * 1982-09-27 1986-07-29 Chisso Corporation 2-cyano-4-halogenophenyl esters
US5342544A (en) * 1991-10-28 1994-08-30 Asahi Denka Kogyo Kabushiki Kaisha Liquid crystal composition

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406363A (en) * 1972-07-13 1975-09-17 Suwa Seikosha Kk Aryl cyanobenzoates having nematic liquid crystal properties nematic liquid crystal materials and electro-optical display devices provided therewith
GB1407777A (en) * 1973-03-02 1975-09-24 Hoffmann La Roche Aromatic esters containing isonitrile groups and their use in liquid crystal materials
GB1437878A (en) * 1973-08-31 1976-06-03 Dainippon Toryo Kk Nematic liquid crystal compositions
JPS5120993B2 (cs) * 1971-12-16 1976-06-29
US4029594A (en) * 1976-06-17 1977-06-14 Rca Corporation Novel liquid crystal compounds and electro-optic devices incorporating them
DE2625217B2 (de) * 1975-06-05 1978-04-06 Dai Nippon Toryo Co., Ltd., Osaka (Japan) Zimtsäureester und diese enthaltende nematische Flüssigkristallmassen
US4138359A (en) * 1976-05-25 1979-02-06 Citizen Watch Co., Ltd. Liquid crystal composition and method for making same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120993B2 (cs) * 1971-12-16 1976-06-29
GB1406363A (en) * 1972-07-13 1975-09-17 Suwa Seikosha Kk Aryl cyanobenzoates having nematic liquid crystal properties nematic liquid crystal materials and electro-optical display devices provided therewith
GB1407777A (en) * 1973-03-02 1975-09-24 Hoffmann La Roche Aromatic esters containing isonitrile groups and their use in liquid crystal materials
GB1437878A (en) * 1973-08-31 1976-06-03 Dainippon Toryo Kk Nematic liquid crystal compositions
DE2625217B2 (de) * 1975-06-05 1978-04-06 Dai Nippon Toryo Co., Ltd., Osaka (Japan) Zimtsäureester und diese enthaltende nematische Flüssigkristallmassen
US4138359A (en) * 1976-05-25 1979-02-06 Citizen Watch Co., Ltd. Liquid crystal composition and method for making same
US4029594A (en) * 1976-06-17 1977-06-14 Rca Corporation Novel liquid crystal compounds and electro-optic devices incorporating them

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
D. Demus: "Flussige Kristalle in Tabellen", published in 1974, publishing house "VEB Deutscher Verlag fur Grendstoffindustrie", Leipzig, page 34 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664840A (en) * 1979-05-28 1987-05-12 E. Merck Liquid crystal compounds
US4582986A (en) * 1980-11-21 1986-04-15 Stockburger H Method and apparatus for the characteristic marking and/or identification of a data-carrier
US4490277A (en) * 1981-05-29 1984-12-25 Grebenkin Mikhail F Mesomorphic material with low optical anisotropy and process for producing same
US4460770A (en) * 1981-06-18 1984-07-17 Hoffmann-La Roche Inc. Liquid crystal mixture
US4560496A (en) * 1983-09-30 1985-12-24 Dietrich Demus Liquid crystalline nematic compounds

Also Published As

Publication number Publication date
GB2072214A (en) 1981-09-30
DE2953841A1 (de) 1982-02-04
JPS56501284A (cs) 1981-09-10
GB2072214B (en) 1984-02-15

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