IT8122556A0 - Coloranti triazoici e composizioni di cristalli liquidi fatte con i medesimi. - Google Patents

Coloranti triazoici e composizioni di cristalli liquidi fatte con i medesimi.

Info

Publication number
IT8122556A0
IT8122556A0 IT8122556A IT2255681A IT8122556A0 IT 8122556 A0 IT8122556 A0 IT 8122556A0 IT 8122556 A IT8122556 A IT 8122556A IT 2255681 A IT2255681 A IT 2255681A IT 8122556 A0 IT8122556 A0 IT 8122556A0
Authority
IT
Italy
Prior art keywords
liquid crystal
crystal compositions
compositions made
triazo dyes
triazo
Prior art date
Application number
IT8122556A
Other languages
English (en)
Other versions
IT1137260B (it
Inventor
Siegfried Aftergut
Herbert Stanley Cole
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT8122556A0 publication Critical patent/IT8122556A0/it
Application granted granted Critical
Publication of IT1137260B publication Critical patent/IT1137260B/it

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
    • C09B35/35—Trisazo dyes in which the tetrazo component is a diamino-azo-aryl compound
    • 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)
IT22556/81A 1980-06-30 1981-06-25 Coloranti triazoici e composizioni di cristalli liquidi faatte con imedesimi IT1137260B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/164,254 US4350603A (en) 1980-06-30 1980-06-30 Novel tris-azo dyes and liquid crystal compositions made therewith

Publications (2)

Publication Number Publication Date
IT8122556A0 true IT8122556A0 (it) 1981-06-25
IT1137260B IT1137260B (it) 1986-09-03

Family

ID=22593660

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22556/81A IT1137260B (it) 1980-06-30 1981-06-25 Coloranti triazoici e composizioni di cristalli liquidi faatte con imedesimi

Country Status (7)

Country Link
US (1) US4350603A (it)
JP (1) JPS5738857A (it)
DE (1) DE3125183A1 (it)
FR (1) FR2485555A1 (it)
GB (1) GB2079770A (it)
IL (1) IL62918A0 (it)
IT (1) IT1137260B (it)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043904A3 (de) * 1980-07-10 1982-03-31 F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft Farbstoffhaltige Mischungen, neue Farbstoffe und deren Verwendung in Flüssigkristallmischungen
DE3049454A1 (de) 1980-12-30 1982-07-29 Bayer Ag, 5090 Leverkusen Fluessigkristallines material enthaltend disazofarbstoffe
DE3123519A1 (de) * 1981-06-13 1982-12-30 Bayer Ag, 5090 Leverkusen Fluessigkristallines material enthaltend azofarbstoffe
US4401369A (en) * 1981-10-19 1983-08-30 Electronic Display Systems, Inc. Class of dichroic dyes for use with liquid crystals
US4411812A (en) * 1981-11-12 1983-10-25 General Electric Company Dichroic liquid crystal compositions made with asymmetric tris-azo dyes
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
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
JPS594674A (ja) * 1982-06-30 1984-01-11 Mitsubishi Chem Ind Ltd ゲスト―ホスト型液晶組成物
JPS5993776A (ja) * 1982-11-18 1984-05-30 Nippon Kanko Shikiso Kenkyusho:Kk アゾ色素の液晶に対する溶解性の改良方法および液晶用二色性アゾ色素
DE3529988A1 (de) * 1985-08-22 1987-02-26 Basf Ag Trisazofarbstoffe und deren verwendung in fluessigkristallinen materialien
DE3639156A1 (de) * 1986-11-15 1988-05-26 Basf Ag Trisazofarbstoffe
US5326865A (en) * 1990-06-08 1994-07-05 Hercules Incorporated Arylazo and poly(arylazo) dyes having at least one core radical selected from naphthyl or anthracyl and having at least one 2,3-dihydro-1,3-dialkyl perimidine substituent
EP2931839B1 (en) 2012-12-13 2017-11-01 Merck Patent GmbH Liquid-crystalline medium
CN112285980A (zh) 2013-03-05 2021-01-29 默克专利股份有限公司 用于调节光学能量穿透量的装置
KR102266840B1 (ko) 2013-05-08 2021-06-18 메르크 파텐트 게엠베하 광 에너지의 통과를 조절하기 위한 2개의 액정 스위칭 층을 포함하는 장치
JP6563384B2 (ja) 2013-05-24 2019-08-21 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ 二色性色素化合物を含むエネルギー通過調節用デバイス
KR102254011B1 (ko) 2013-12-19 2021-05-20 메르크 파텐트 게엠베하 광의 통과를 조절하기 위한 장치
DE102015005800A1 (de) 2015-05-06 2016-11-10 Merck Patent Gmbh Thiadiazolochinoxalinderivate
EP3319964B1 (de) 2015-07-10 2020-07-22 Merck Patent GmbH Dithioalkylpyrrolopyrrole und ihre verwendung als farbstoffe
CN109790467B (zh) 2016-06-28 2022-08-09 默克专利股份有限公司 液晶介质
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
JP7391888B2 (ja) 2018-06-20 2023-12-05 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング 液晶媒体
JP7447099B2 (ja) 2018-09-25 2024-03-11 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング アゾ色素
JP7439086B2 (ja) 2018-11-23 2024-02-27 メルク・パテント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング 二色性色素組成物
CN113195683A (zh) 2018-12-19 2021-07-30 默克专利股份有限公司 用于切换元件的切换层
US20220306939A1 (en) 2019-06-17 2022-09-29 Merck Patent Gmbh Liquid crystal-based light valve
EP3839620A1 (en) 2019-12-16 2021-06-23 Merck Patent GmbH Device for the regulation of light transmission
WO2022122871A1 (en) 2020-12-11 2022-06-16 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

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH196242A (de) * 1935-08-17 1938-02-28 Chem Ind Basel Verfahren zur Herstellung eines neuen Farbstoffpräparates.
CH194346A (de) * 1936-04-09 1937-11-30 Chem Ind Basel Verfahren zur Herstellung eines neuen Derivates eines Azofarbstoffes.
US3941560A (en) * 1973-12-07 1976-03-02 American Aniline Products, Inc. Trisazo polyester materials
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 (it) * 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
US4128496A (en) * 1976-09-09 1978-12-05 General Electric Company Dichroic liquid crystal compositions
US4122027A (en) * 1976-11-08 1978-10-24 General Electric Company Dichroic liquid crystal composition with 4,4-bis (substituted naphthylazo)azobenzene dichroic dyes
US4141627A (en) * 1977-01-06 1979-02-27 Rca Corporation Electro-optic device
US4153343A (en) * 1977-06-09 1979-05-08 Rca Corporation Liquid crystal dyestuffs and electro-optic devices incorporating same
US4116861A (en) * 1977-08-18 1978-09-26 General Electric Company Dichroic liquid crystal compositions

Also Published As

Publication number Publication date
GB2079770A (en) 1982-01-27
JPS5738857A (en) 1982-03-03
FR2485555A1 (fr) 1981-12-31
IT1137260B (it) 1986-09-03
IL62918A0 (en) 1981-07-31
DE3125183A1 (de) 1982-03-11
US4350603A (en) 1982-09-21

Similar Documents

Publication Publication Date Title
IT8122556A0 (it) Coloranti triazoici e composizioni di cristalli liquidi fatte con i medesimi.
NO161788C (no) Flytende konstruksjon.
IT1132739B (it) Agente separatore di componenti in liquidi
DE3684967D1 (de) Fluessigkristallzusammensetzung.
IT8123216A0 (it) Composizione di organopolisilossano.
IT8021145A0 (it) Composizioni di policarbonati caricati.
DK426281A (da) Let aabnelig beholder
DE3485405D1 (de) Fluessigkristallzusammensetzung.
DK64681A (da) Viskov flydende saebesammensaetning
DE3579939D1 (de) Fluessigkeitsprisma.
DE3583360D1 (de) Fluessigkristallzusammensetzung.
BR8104590A (pt) Vidro opalino espontaneo
BR8101896A (pt) Polimero e composicao contendo tal polimero
DE3565992D1 (de) Liquid curable polyorganosiloxane compositions
IT8120942A0 (it) Composizione di sec-butildifenili e relativo processo di preparazione.
DE3784017D1 (de) Fluessigkristallzusammensetzung.
DK313681A (da) Stabile flydende pigmentholdige praeparater
DE3585473D1 (de) Fluessigkristallzusammensetzung.
DE3583096D1 (de) Fluessigkristallzusammensetzung.
IT8123712A0 (it) Coloranti trisazoici.
NL192407B (nl) Optische isolator.
NO821619L (no) Flytende konstruksjon.
DK473385D0 (da) Flydendegjorte og rehydratiserbare magaldratsammensaetninger
IT7822204A0 (it) Coloranti disazoici contenenti gruppi solfonici.
IT8219224A0 (it) Coloranti azoici gialli e composizioni di cristalli liquidi dicroici fatte con i medesimi.