FR2444702A1 - MIXTURE OF LIQUID CRYSTALS - Google Patents

MIXTURE OF LIQUID CRYSTALS

Info

Publication number
FR2444702A1
FR2444702A1 FR7931045A FR7931045A FR2444702A1 FR 2444702 A1 FR2444702 A1 FR 2444702A1 FR 7931045 A FR7931045 A FR 7931045A FR 7931045 A FR7931045 A FR 7931045A FR 2444702 A1 FR2444702 A1 FR 2444702A1
Authority
FR
France
Prior art keywords
liquid crystals
mixture
relates
dye
mixtures
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
Application number
FR7931045A
Other languages
French (fr)
Other versions
FR2444702B1 (en
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2444702A1 publication Critical patent/FR2444702A1/en
Application granted granted Critical
Publication of FR2444702B1 publication Critical patent/FR2444702B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/60—Pleochroic dyes
    • C09K19/603—Anthroquinonic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention a trait au domaine des cristaux liquides. Elle concerne des mélanges de cristaux liquides renfermant comme colorant incorporé comme phase incluse à une phase incluante formée d'une masse de cristaux liquides dopée à l'aide d'un additif optiquement actif, au moins un colorant anthraquinonique de formule :The invention relates to the field of liquid crystals. It relates to mixtures of liquid crystals containing as a dye incorporated as a phase included in an including phase formed of a mass of liquid crystals doped with an optically active additive, at least one anthraquinone dye of formula:

FR7931045A 1978-12-21 1979-12-19 MIXTURE OF LIQUID CRYSTALS Granted FR2444702A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1299478A CH638828A5 (en) 1978-12-21 1978-12-21 LIQUID CRYSTAL MIXTURE.

Publications (2)

Publication Number Publication Date
FR2444702A1 true FR2444702A1 (en) 1980-07-18
FR2444702B1 FR2444702B1 (en) 1983-08-19

Family

ID=4388330

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931045A Granted FR2444702A1 (en) 1978-12-21 1979-12-19 MIXTURE OF LIQUID CRYSTALS

Country Status (6)

Country Link
JP (1) JPS55106280A (en)
CH (1) CH638828A5 (en)
DD (1) DD148060A5 (en)
DE (1) DE2903095A1 (en)
FR (1) FR2444702A1 (en)
GB (1) GB2037803B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449720A1 (en) * 1979-02-23 1980-09-19 Minnesota Mining & Mfg COMPOSITION FOR LIQUID CRYSTALS CONTAINING PLEOCHROIC DYE AND ELECTRO-OPTICAL DEVICE CONTAINING THE SAME
FR2451392A1 (en) * 1979-03-16 1980-10-10 Mitsui Toatsu Chemicals
FR2451393A1 (en) * 1979-03-16 1980-10-10 Mitsui Toatsu Chemicals COMPOSITION FOR LIQUID CRYSTAL COLOR DISPLAY ELEMENTS
FR2474048A1 (en) * 1980-01-17 1981-07-24 Mitsui Toatsu Chemicals NEMATIC LIQUID CRYSTALLINE COMPOSITION USED IN PARTICULAR IN DISPLAY DEVICES
EP0093367A2 (en) * 1982-05-03 1983-11-09 Bayer Ag Anthraquinone dyes, their preparation and use, and a dichroic material containing these anthraquinone dyes
EP0103095A2 (en) * 1982-07-17 1984-03-21 Bayer Ag Dichroic material containing anthraquinone dyes
FR2535733A1 (en) * 1982-10-28 1984-05-11 Ivaschenko Alexandr V Acylated anthraquinone cpds.

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702561A (en) * 1977-04-11 1987-10-27 Minnesota Mining And Manufacturing Company Pleochroic dyes and electro-optical displays therewith
US4288147A (en) * 1978-12-20 1981-09-08 Timex Corporation Electro-optical composition of the guest-host type
DE2902177A1 (en) * 1978-12-21 1980-07-17 Bbc Brown Boveri & Cie LIQUID CRYSTAL MIXTURE
EP0025809A1 (en) * 1979-09-21 1981-04-01 BBC Aktiengesellschaft Brown, Boveri & Cie. Liquid crystals mixture
CH642393A5 (en) 1979-10-02 1984-04-13 Ebauches Sa LIQUID CRYSTAL COMPOSITION FOR ELECTRO-OPTICAL DEVICE.
DE3007198A1 (en) * 1980-02-26 1981-09-03 Siemens AG, 1000 Berlin und 8000 München PLEOCHROITIC ANTHRACHINONE DYE, METHOD FOR THE PRODUCTION THEREOF AND USE OF THE DYE
CH646452A5 (en) * 1980-03-14 1984-11-30 Asulab Sa LIQUID CRYSTAL COMPOSITION FOR ELECTRO-OPTICAL DEVICE.
DE3014933A1 (en) * 1980-04-18 1981-10-29 Bayer Ag, 5090 Leverkusen LIQUID CRYSTAL MATERIALS CONTAINING ANTHRACHINONE DYES
US4394070A (en) * 1980-07-16 1983-07-19 Minnesota Mining And Manufacturing Company Helichromic compounds and displays
US4405211A (en) * 1980-07-29 1983-09-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal compositions with pleochroic anthraquinone dyes
US4391754A (en) * 1980-07-29 1983-07-05 Imperial Chemical Industries Plc Anthraquinone compounds
US4391489A (en) * 1980-07-29 1983-07-05 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal materials containing pleochroic anthraquinone dyes
DE3036895C2 (en) * 1980-09-30 1985-07-11 Merck Patent Gmbh, 6100 Darmstadt Anthraquinone pleochroism dye and manufacturing process for such a dye and its use in a liquid crystal mixture
US4356102A (en) * 1980-10-22 1982-10-26 General Electric Company Dichroic liquid crystal compositions containing anthraquinone-based dyes
US4624532A (en) * 1980-10-22 1986-11-25 General Electric Company Dichroic liquid crystal compositions containing anthraquinone-based dyes
DE3040102A1 (en) * 1980-10-24 1982-06-03 Merck Patent Gmbh, 6100 Darmstadt DICHROITIC ANTHRACHINONE DYES, THIS CONTAINING LIQUID CRYSTALINE DIELECTRICS AND ELECTRO-OPTICAL DISPLAY ELEMENT
DE3046904A1 (en) * 1980-12-12 1982-07-15 Bayer Ag, 5090 Leverkusen ANTHRACHINONE DYES, METHOD FOR THE PRODUCTION THEREOF, AND THE USE OF LIQUID CRYSTAL MATERIALS CONTAINING ANTHRACHINONE DYES
EP0056492B1 (en) * 1981-01-10 1984-12-12 BASF Aktiengesellschaft Dyes for liquid crystal mixtures
JPS57126879A (en) * 1981-01-12 1982-08-06 Sumitomo Chem Co Ltd Liquid crystal display element
GB2094825B (en) * 1981-01-17 1984-09-12 Mitsubishi Chem Ind Liquid crystal compositions containing pleochroic anthraquinone dyes
JPS57155282A (en) * 1981-03-20 1982-09-25 Mitsubishi Chem Ind Ltd Liquid crystal composition
US4514045A (en) * 1981-06-22 1985-04-30 Minnesota Mining And Manufacturing Company Helichromic-smectic liquid crystal compositions and display cells
DE3137298A1 (en) * 1981-09-18 1983-04-14 Bayer Ag, 5090 Leverkusen ANTHRACHINONE DYES
JPS5876482A (en) * 1981-10-30 1983-05-09 Alps Electric Co Ltd Liquid crystal mixture
JPS58109579A (en) * 1981-12-24 1983-06-29 Alps Electric Co Ltd Color liquid crystal display element
JPS58109580A (en) * 1981-12-24 1983-06-29 Alps Electric Co Ltd Color liquid crystal display element
JPS58109578A (en) * 1981-12-24 1983-06-29 Alps Electric Co Ltd Color liquid crystal display element
JPS58111882A (en) * 1981-12-25 1983-07-04 Alps Electric Co Ltd Color liquid crystal display device
DE3202761A1 (en) * 1982-01-28 1983-08-04 Merck Patent Gmbh, 6100 Darmstadt LIQUID CRYSTAL DIELECTRIC, NEW COLORS, METHOD FOR THEIR PRODUCTION AND ELECTRO-OPTICAL DISPLAY ELEMENT
EP0091226B1 (en) * 1982-04-07 1986-10-01 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Dielectric materials
GB2122632B (en) * 1982-04-07 1985-11-13 Ici Plc Anthraquinone compounds
DE3247896A1 (en) * 1982-12-24 1984-06-28 Merck Patent Gmbh, 6100 Darmstadt ANTHRACHINONE DYES
US4530572A (en) * 1982-12-30 1985-07-23 Minnesota Mining And Manufacturing Company Substituted anthraquinone-type isotropic dyes for liquid crystal display devices

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449720A1 (en) * 1979-02-23 1980-09-19 Minnesota Mining & Mfg COMPOSITION FOR LIQUID CRYSTALS CONTAINING PLEOCHROIC DYE AND ELECTRO-OPTICAL DEVICE CONTAINING THE SAME
FR2451392A1 (en) * 1979-03-16 1980-10-10 Mitsui Toatsu Chemicals
FR2451393A1 (en) * 1979-03-16 1980-10-10 Mitsui Toatsu Chemicals COMPOSITION FOR LIQUID CRYSTAL COLOR DISPLAY ELEMENTS
FR2474048A1 (en) * 1980-01-17 1981-07-24 Mitsui Toatsu Chemicals NEMATIC LIQUID CRYSTALLINE COMPOSITION USED IN PARTICULAR IN DISPLAY DEVICES
US4536320A (en) * 1980-01-17 1985-08-20 Mitsui Toatsu Chemicals, Inc. Nematic liquid crystalline composition
EP0093367A2 (en) * 1982-05-03 1983-11-09 Bayer Ag Anthraquinone dyes, their preparation and use, and a dichroic material containing these anthraquinone dyes
EP0093367A3 (en) * 1982-05-03 1986-08-27 Bayer Ag Anthraquinone dyes, their preparation and use, and a dichroic material containing these anthraquinone dyes
EP0103095A2 (en) * 1982-07-17 1984-03-21 Bayer Ag Dichroic material containing anthraquinone dyes
EP0103095A3 (en) * 1982-07-17 1986-08-27 Bayer Ag Dichroic material containing anthraquinone dyes, and anthraquinone dyes
FR2535733A1 (en) * 1982-10-28 1984-05-11 Ivaschenko Alexandr V Acylated anthraquinone cpds.

Also Published As

Publication number Publication date
CH638828A5 (en) 1983-10-14
FR2444702B1 (en) 1983-08-19
DD148060A5 (en) 1981-05-06
GB2037803B (en) 1983-04-13
GB2037803A (en) 1980-07-16
JPS55106280A (en) 1980-08-14
DE2903095A1 (en) 1980-07-10

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Legal Events

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