GB2082196B - Liquid crystal materials containing anthraquinone pleochroic dyes - Google Patents

Liquid crystal materials containing anthraquinone pleochroic dyes

Info

Publication number
GB2082196B
GB2082196B GB8123186A GB8123186A GB2082196B GB 2082196 B GB2082196 B GB 2082196B GB 8123186 A GB8123186 A GB 8123186A GB 8123186 A GB8123186 A GB 8123186A GB 2082196 B GB2082196 B GB 2082196B
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
materials containing
crystal materials
pleochroic dyes
containing anthraquinone
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.)
Expired
Application number
GB8123186A
Other versions
GB2082196A (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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB8123186A priority Critical patent/GB2082196B/en
Publication of GB2082196A publication Critical patent/GB2082196A/en
Application granted granted Critical
Publication of GB2082196B publication Critical patent/GB2082196B/en
Expired 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
    • 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
    • C09B1/56—Mercapto-anthraquinones
    • C09B1/58—Mercapto-anthraquinones with mercapto groups substituted by aliphatic, cycloaliphatic, araliphatic or aryl radicals
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB8123186A 1980-07-29 1981-07-28 Liquid crystal materials containing anthraquinone pleochroic dyes Expired GB2082196B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8123186A GB2082196B (en) 1980-07-29 1981-07-28 Liquid crystal materials containing anthraquinone pleochroic dyes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8024797 1980-07-29
GB8123186A GB2082196B (en) 1980-07-29 1981-07-28 Liquid crystal materials containing anthraquinone pleochroic dyes

Publications (2)

Publication Number Publication Date
GB2082196A GB2082196A (en) 1982-03-03
GB2082196B true GB2082196B (en) 1985-01-23

Family

ID=26276382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8123186A Expired GB2082196B (en) 1980-07-29 1981-07-28 Liquid crystal materials containing anthraquinone pleochroic dyes

Country Status (1)

Country Link
GB (1) GB2082196B (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2094825B (en) 1981-01-17 1984-09-12 Mitsubishi Chem Ind Liquid crystal compositions containing pleochroic anthraquinone dyes
DE3276868D1 (en) * 1981-02-25 1987-09-03 Ici Plc PLEOCHROIC ANTHRAQUINONE DYES
GB2155489B (en) * 1981-02-25 1986-05-29 Ici Plc Liquid crystal materials containing pleochroic dithioanthraquinone dyes
US4464282A (en) * 1981-02-25 1984-08-07 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britian And Northern Ireland Organic materials
EP0155345B1 (en) * 1981-02-25 1988-02-03 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Pleochroic anthraquinone dyes
US4446047A (en) * 1981-02-25 1984-05-01 Imperial Chemical Industries Plc Pleochroic anthraquinone dyes
DE3150822A1 (en) * 1981-09-05 1983-03-24 Bayer Ag, 5090 Leverkusen LIQUID CRYSTAL MATERIAL CONTAINING ANTHRACHINONE DYES AND NEW ANTHRACHINONE DYES
DE3314467A1 (en) * 1982-07-17 1984-01-19 Bayer Ag, 5090 Leverkusen DICHROITIC MATERIAL, CONTAINING ANTHRACHINONE DYES AND NEW ANTHRACHINONE DYES
DE3380962D1 (en) * 1982-08-18 1990-01-18 Secr Defence Brit ORGANIC MATERIALS FOR A LIQUID CRYSTAL DEVICE.
GB2126601B (en) * 1982-08-18 1986-12-10 Secr Defence Guest-host liquid crystal materials
EP0103952B1 (en) * 1982-08-18 1988-12-28 Imperial Chemical Industries Plc Pleochroic anthraquinone dyes
CA1276016C (en) * 1987-01-13 1990-11-06 Konoe Miura Anthraquinone compounds and polarizing film containing the same
US5595686A (en) * 1994-09-02 1997-01-21 Shin-Etsu Chemical Co., Ltd. Silacyclohexane compounds, a liquid crystal composition comprising the same and a liquid crystal device comprising the composition
US8399161B2 (en) 2007-02-23 2013-03-19 Basf Se Transparent colourants and colourant compositions, and their use
CN104837959B (en) 2012-12-13 2017-09-19 默克专利股份有限公司 Liquid crystal media
CN112285980A (en) 2013-03-05 2021-01-29 默克专利股份有限公司 Device for adjusting optical energy penetration
WO2014180525A1 (en) 2013-05-08 2014-11-13 Merck Patent Gmbh Device comprising two liquid crystal switching layers for regulating the passage of optical energy
KR102234246B1 (en) 2013-05-24 2021-04-01 메르크 파텐트 게엠베하 Device for controlling the passage of energy, containing a dichroic dye compound
EP3623451B1 (en) 2013-12-19 2021-01-20 Merck Patent GmbH Compound
DE102015005800A1 (en) 2015-05-06 2016-11-10 Merck Patent Gmbh Thiadiazolochinoxalinderivate
KR102602326B1 (en) 2015-07-10 2023-11-16 메르크 파텐트 게엠베하 Dithio-alkyl-pyrrolo-pyrrole and its use as dyes
KR20190023089A (en) 2016-06-28 2019-03-07 메르크 파텐트 게엠베하 Liquid crystal medium
EP3487955B1 (en) 2016-07-19 2020-05-20 Merck Patent GmbH Liquid crystalline medium
WO2019238567A1 (en) 2018-06-11 2019-12-19 Merck Patent Gmbh Liquid crystalline medium
WO2019243216A1 (en) 2018-06-20 2019-12-26 Merck Patent Gmbh Liquid crystalline medium
KR20210069062A (en) 2018-09-25 2021-06-10 메르크 파텐트 게엠베하 azo dye
EP3884011B1 (en) 2018-11-23 2024-02-14 Merck Patent GmbH Dichroic dye composition
KR20210106495A (en) 2018-12-19 2021-08-30 메르크 파텐트 게엠베하 Switching layer for use in switching elements
CN114008176A (en) 2019-06-17 2022-02-01 默克专利股份有限公司 Liquid crystal based light valve
EP3839620A1 (en) 2019-12-16 2021-06-23 Merck Patent GmbH Device for the regulation of light transmission
US20240134218A1 (en) 2020-12-11 2024-04-25 Merck Patent Gmbh Device for the regulation of light transmission
WO2023094404A1 (en) 2021-11-24 2023-06-01 Merck Patent Gmbh Liquid crystal medium and liquid crystal display

Also Published As

Publication number Publication date
GB2082196A (en) 1982-03-03

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Legal Events

Date Code Title Description
7732 Case decided by the comptroller ** patent revoked (sect. 73(2)/1977)