GB2108519B - Dichroic/tetrakisazo dyes for use in liquid crystals - Google Patents

Dichroic/tetrakisazo dyes for use in liquid crystals

Info

Publication number
GB2108519B
GB2108519B GB08229524A GB8229524A GB2108519B GB 2108519 B GB2108519 B GB 2108519B GB 08229524 A GB08229524 A GB 08229524A GB 8229524 A GB8229524 A GB 8229524A GB 2108519 B GB2108519 B GB 2108519B
Authority
GB
United Kingdom
Prior art keywords
dichroic
liquid crystals
tetrakisazo dyes
tetrakisazo
dyes
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
GB08229524A
Other languages
English (en)
Other versions
GB2108519A (en
Inventor
Derick Jones
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.)
Electronic Display Syst
Electronic Display Systems Inc
Original Assignee
Electronic Display Syst
Electronic Display Systems Inc
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 Electronic Display Syst, Electronic Display Systems Inc filed Critical Electronic Display Syst
Publication of GB2108519A publication Critical patent/GB2108519A/en
Application granted granted Critical
Publication of GB2108519B publication Critical patent/GB2108519B/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/50—Tetrazo dyes
    • 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
    • C09K19/601—Azoic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Liquid Crystal (AREA)
GB08229524A 1981-10-19 1982-10-15 Dichroic/tetrakisazo dyes for use in liquid crystals Expired GB2108519B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/312,678 US4401369A (en) 1981-10-19 1981-10-19 Class of dichroic dyes for use with liquid crystals

Publications (2)

Publication Number Publication Date
GB2108519A GB2108519A (en) 1983-05-18
GB2108519B true GB2108519B (en) 1985-10-02

Family

ID=23212508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08229524A Expired GB2108519B (en) 1981-10-19 1982-10-15 Dichroic/tetrakisazo dyes for use in liquid crystals

Country Status (6)

Country Link
US (1) US4401369A (OSRAM)
JP (1) JPS5879077A (OSRAM)
CH (1) CH656889A5 (OSRAM)
DE (1) DE3238702A1 (OSRAM)
FR (1) FR2514774A1 (OSRAM)
GB (1) GB2108519B (OSRAM)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080153B1 (en) * 1981-11-16 1987-04-08 Mitsubishi Kasei Corporation Pleochroic azo dyes, a liquid crystal composition containing the azo dyes and a display device using the liquid crystal composition
JPS58138767A (ja) * 1982-02-10 1983-08-17 Hitachi Ltd 液晶組成物及び表示素子
GB2120674B (en) * 1982-03-13 1986-11-19 Nippon Kanko Shikiso Kenyusho Dichroic dyestuffs for liquid crystals and liquid crystal compositions comprising the same
JPS5947261A (ja) * 1982-09-13 1984-03-16 Nippon Kanko Shikiso Kenkyusho:Kk 液晶用アゾ色素の二色性改良法
EP0098522B1 (en) * 1982-06-30 1989-06-07 Hitachi, Ltd. Liquid crystal composition
YU44866B (en) * 1983-09-09 1991-04-30 Inst Stefan Jozef Matrix lcd with an internal reflector and a measuring net
US4674841A (en) * 1985-03-08 1987-06-23 Tektronix, Inc. Color filter switchable among three state via a variable retarder
DE3529988A1 (de) * 1985-08-22 1987-02-26 Basf Ag Trisazofarbstoffe und deren verwendung in fluessigkristallinen materialien
DD257889A1 (de) * 1987-02-20 1988-06-29 Werk Fernsehelektronik Veb Verfahren zur herstellung farbiger fluessigkristallanzeigen
US5097029A (en) * 1989-07-03 1992-03-17 Hercules Incorporated Process for preparing 2,3-dihydro-1,3-dialkyl-2,3-dialkyl perimidines and N,N-'-dialkyl-1,8-naphthalene diamines
EP0406812B1 (en) * 1989-07-03 1995-02-15 Hercules Incorporated Process for the preparation of NiNi-dialkyl-1,8-naphthalene diamine
US5846452A (en) * 1995-04-06 1998-12-08 Alliant Techsystems Inc. Liquid crystal optical storage medium with gray scale
WO2008031243A1 (en) 2006-09-13 2008-03-20 Rolic Ag Volume photo-aligned retarder
WO2008077261A1 (en) * 2006-12-22 2008-07-03 Rolic Ag Patternable liquid crystal polymer comprising thio-ether units
JP5566160B2 (ja) * 2010-03-31 2014-08-06 富士フイルム株式会社 液晶性化合物、液晶性組成物、光吸収異方性膜、及び液晶表示装置
CN103890648B (zh) 2011-10-03 2019-06-18 罗利克有限公司 具有强uv-二色性的光定向层
CN104364682B (zh) 2012-05-30 2018-06-01 罗利克有限公司 具有单独构图的各向异性的元件的快速生成
CN105473317B (zh) 2013-08-19 2021-06-29 罗利克有限公司 可光配向的物体
US10845520B2 (en) 2014-04-03 2020-11-24 Rolic Ag Optical devices with patterned anisotropy incorporating parallax optic
KR102401926B1 (ko) 2014-07-31 2022-05-26 바스프 코팅스 게엠베하 Oled 디스플레이용의 반사방지 성질들을 도입한 캡슐화 구조물
WO2017080977A1 (en) 2015-11-11 2017-05-18 Rolic Ag Compositions of photo-alignable materials
WO2018019691A1 (en) 2016-07-29 2018-02-01 Rolic Ag Method for generating alignment on top of a liquid crystal polymer material
JP7389147B2 (ja) 2019-06-28 2023-11-29 ロリク・テクノロジーズ・アーゲー 新規な重合性液晶
US12006463B2 (en) 2019-06-28 2024-06-11 Rolic Technologies AG Polymerizable liquid crystal having a quinoxaline-hydrazone core
WO2020260617A1 (en) 2019-06-28 2020-12-30 Rolic Technologies AG New polymerizable liquid crystal having a carbazole core
JP7623346B2 (ja) 2019-07-24 2025-01-28 ロリク・テクノロジーズ・アーゲー 光配向性ポジティブｃ－プレートリターダ
JP7564192B2 (ja) 2019-08-28 2024-10-08 ロリク・テクノロジーズ・アーゲー 重合性液晶の組成物
TW202448972A (zh) 2023-05-12 2024-12-16 瑞士商羅立克科技股份公司 可聚合液晶組成物
WO2025247588A1 (en) 2024-05-31 2025-12-04 Rolic Technologies AG Optical security device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697478A (en) * 1970-10-19 1972-10-10 Monsanto Co Polyamides from pseudo-conjugated azo-aromatic diamines
DE2414477C3 (de) * 1974-03-26 1980-11-27 Cassella Ag, 6000 Frankfurt Farbstoffzubereitung und Verfahren zum Färben und Bedrucken von hochmolekularen Polyestern und Zellulosetriacetat
US4145114A (en) * 1975-06-17 1979-03-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Pleochroic dyes
CH594897A5 (OSRAM) * 1976-06-23 1978-01-31 Bbc Brown Boveri & Cie
US4128497A (en) * 1976-09-09 1978-12-05 General Electric Company Dichroic liquid crystal compositions
US4179395A (en) * 1976-09-09 1979-12-18 General Electric Company Dichroic dyes having a plurality of azo bonding groups
US4122027A (en) * 1976-11-08 1978-10-24 General Electric Company Dichroic liquid crystal composition with 4,4-bis (substituted naphthylazo)azobenzene dichroic dyes
CA1077755A (en) * 1977-02-23 1980-05-20 Arnold H. Bourne Variable lead optical tracing machine
US4273929A (en) * 1979-02-05 1981-06-16 Hoffmann-La Roche Inc. Heterocyclic compounds
US4350603A (en) * 1980-06-30 1982-09-21 General Electric Company Novel tris-azo dyes and liquid crystal compositions made therewith
US4308161A (en) * 1980-08-04 1981-12-29 General Electric Company Novel yellow azo dyes and dichroic liquid crystal compositions made therewith
US4308164A (en) * 1980-08-04 1981-12-29 General Electric Company Novel yellow azo dyes and dichroic liquid crystal composition made therewith
US4308163A (en) * 1980-08-04 1981-12-29 General Electric Company Novel yellow azo dyes and dichroic liquid crystal composition made therewith
US4308162A (en) * 1980-12-08 1981-12-29 General Electric Company Novel yellow azo dyes and dichroic liquid crystal compositions made therewith
GB2090274B (en) * 1980-12-12 1984-09-12 Minnesota Mining & Mfg Dichroic dyestuff
US4359398A (en) * 1980-12-22 1982-11-16 General Electric Company Liquid crystal compositions with novel tris-azo dichroic dyes

Also Published As

Publication number Publication date
FR2514774B1 (OSRAM) 1985-05-24
FR2514774A1 (fr) 1983-04-22
JPH0144235B2 (OSRAM) 1989-09-26
DE3238702C2 (OSRAM) 1990-03-08
CH656889A5 (fr) 1986-07-31
US4401369A (en) 1983-08-30
JPS5879077A (ja) 1983-05-12
GB2108519A (en) 1983-05-18
DE3238702A1 (de) 1983-04-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20001015