ES2067848T3 - Poliesteres cristalinos liquidos y sensibles al infrarrojo, adecuados para uso en almacenamiento optico de datos, procedimientos para la preparacion de los mismos, y aparato que contiene un poliester cristalino liquido sensible al infrarrojo. - Google Patents

Poliesteres cristalinos liquidos y sensibles al infrarrojo, adecuados para uso en almacenamiento optico de datos, procedimientos para la preparacion de los mismos, y aparato que contiene un poliester cristalino liquido sensible al infrarrojo.

Info

Publication number
ES2067848T3
ES2067848T3 ES91202361T ES91202361T ES2067848T3 ES 2067848 T3 ES2067848 T3 ES 2067848T3 ES 91202361 T ES91202361 T ES 91202361T ES 91202361 T ES91202361 T ES 91202361T ES 2067848 T3 ES2067848 T3 ES 2067848T3
Authority
ES
Spain
Prior art keywords
liquid crystal
sensitive liquid
infrared sensitive
optical data
liquid crystalline
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 - Lifetime
Application number
ES91202361T
Other languages
English (en)
Inventor
Wit Paulus Pieter De
Erwin Wilhelmus Petr Erdhuisen
John Griffiths
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.)
Akzo Nobel NV
Original Assignee
Akzo Nobel NV
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 Akzo Nobel NV filed Critical Akzo Nobel NV
Application granted granted Critical
Publication of ES2067848T3 publication Critical patent/ES2067848T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/25—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing liquid crystals
    • 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
    • C09K19/38—Polymers
    • C09K19/3833—Polymers with mesogenic groups in the side chain
    • C09K19/3838—Polyesters; Polyester derivatives
    • 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
    • C09K19/605—Azomethine dyes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • G11B7/00555—Erasing involving liquid crystal media
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/245—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing a polymeric component
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • G11B7/2467—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes azo-dyes

Abstract

SE DESCRIBEN POLIESTERES CRISTALINOS LIQUIDOS Y POLIESTERES CRISTALINOS LIQUIDOS SENSIBLES A LOS RAYOS INFRARROJOS PARA EL ALMACENAMIENTO DE DATOS OPTICOS, PROCESOS PARA SU PREPARACION Y UN APARATO QUE CONTIENE POLIESTER CRISTALINO LIQUIDO SENSIBLE A LOS RAYOS INFRARROJOS. DEBIDO AL COLORANTE ENLAZADO COVALENTEMENTE EL POLIESTER CRISTALINO LIQUIDO ES SENSIBLE A LOS RAYOS INFRARROJOS Y SE PUEDEN OBTENER ALTAS CONCENTRACIONES DE TINTA, SIN EFECTOS PERJUDICIALES EN LAS PROPIEDADES DEL POLIESTER CRISTALINO LIQUIDO. ESTO DA COMO RESULTADO UN POLIESTER CRISTALINO LIQUIDO MUY SENSIBLE PARA EL ALMACENAMIENTO DE DATOS OPTICOS. LOS TINTES INFRARROJOS QUE SE UNEN PREFERENTEMENTE EN EL POLIESTER CRISTALINO LIQUIDO SON COLORANTES DE CROCONIO, ESCUARILIO, AZO Y AZAMETINA.
ES91202361T 1990-09-24 1991-09-16 Poliesteres cristalinos liquidos y sensibles al infrarrojo, adecuados para uso en almacenamiento optico de datos, procedimientos para la preparacion de los mismos, y aparato que contiene un poliester cristalino liquido sensible al infrarrojo. Expired - Lifetime ES2067848T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9002081 1990-09-24

Publications (1)

Publication Number Publication Date
ES2067848T3 true ES2067848T3 (es) 1995-04-01

Family

ID=19857717

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91202361T Expired - Lifetime ES2067848T3 (es) 1990-09-24 1991-09-16 Poliesteres cristalinos liquidos y sensibles al infrarrojo, adecuados para uso en almacenamiento optico de datos, procedimientos para la preparacion de los mismos, y aparato que contiene un poliester cristalino liquido sensible al infrarrojo.

Country Status (5)

Country Link
US (1) US5525265A (es)
EP (2) EP0478052B1 (es)
JP (1) JPH04283228A (es)
DE (1) DE69106824T2 (es)
ES (1) ES2067848T3 (es)

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US5382648A (en) * 1992-04-09 1995-01-17 Akzo Nobel Nv Twisted nematic film, a method for the preparation thereof, and a display device comprising said film
EP0608019A1 (en) * 1993-01-21 1994-07-27 Akzo Nobel N.V. Thermochromic infrared dyes
KR940018448A (ko) * 1993-01-21 1994-08-18 피터 씨. 샬크비즈크; 권터 페트 열변색 적외선 염료
EP0608924A1 (en) * 1993-01-26 1994-08-03 Akzo Nobel N.V. Homeotropically oriented liquid crystalline polymer film comprising dichroic dye
EP0651381A1 (en) * 1993-10-28 1995-05-03 Akzo Nobel N.V. Optical storage medium and method of storing information
EP0651382A1 (en) * 1993-11-02 1995-05-03 Akzo Nobel N.V. Optical storage medium
EP0772662A1 (en) * 1994-07-26 1997-05-14 Akzo Nobel N.V. Liquid-crystalline glasses
AU5893596A (en) 1995-06-02 1996-12-18 Forskningscenter Riso Novel physically functional materials
WO1997008692A1 (en) * 1995-08-30 1997-03-06 Akzo Nobel N.V. Optical recording medium containing a thiophene squarilium or croconium dye
JPH09183890A (ja) * 1995-12-28 1997-07-15 Polyplastics Co 液晶性ポリエステル樹脂組成物
SI21526A (sl) * 2003-05-16 2004-12-31 Institut "Jožef Stefan" Visoko kontrastni tekočekristalni svetlobno preklopni element s širokim vidnim kotom
JP2008075016A (ja) * 2006-09-22 2008-04-03 Fujifilm Corp 近赤外線吸収材料及び近赤外線吸収フィルター
JP5085082B2 (ja) * 2006-09-22 2012-11-28 富士フイルム株式会社 近赤外線吸収材料及び近赤外線吸収フィルター

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DE3211400A1 (de) * 1982-03-27 1983-09-29 Basf Ag, 6700 Ludwigshafen Polymere mit mesogenen gruppen und farbstoffresten in den seitenketten
JPS5914150A (ja) * 1982-07-15 1984-01-25 Canon Inc 光学記録媒体
JPS5960443A (ja) * 1982-09-30 1984-04-06 Canon Inc 光導電性組成物
JPS59179294A (ja) * 1983-03-31 1984-10-11 Sumitomo Metal Ind Ltd 多電極潜弧溶接方法及びこれに用いる溶接ワイヤ
US4481314A (en) * 1983-06-29 1984-11-06 Eastman Kodak Company Infrared radiation absorbent anthraquinone derivatives in polyester compositions
GB8324642D0 (en) * 1983-09-14 1983-10-19 Univ Manchester Liquid crystal storage device
DE3334056A1 (de) * 1983-09-21 1985-04-18 Basf Ag, 6700 Ludwigshafen Fluessig-kristalline phasen bildende polymere
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DE3603267A1 (de) * 1986-02-04 1987-08-06 Roehm Gmbh Vorrichtung zur reversiblen, optischen datenspeicherung (i)
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Also Published As

Publication number Publication date
EP0615234A3 (en) 1994-10-05
US5525265A (en) 1996-06-11
DE69106824T2 (de) 1995-08-31
JPH04283228A (ja) 1992-10-08
DE69106824D1 (de) 1995-03-02
EP0478052A1 (en) 1992-04-01
EP0478052B1 (en) 1995-01-18
EP0615234A2 (en) 1994-09-14

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