DK0444740T3 - Flydende krystallinske polyestere til optisk datalagring - Google Patents

Flydende krystallinske polyestere til optisk datalagring

Info

Publication number: DK0444740T3
Authority: DK; Denmark
Prior art keywords: data storage; optical data; liquid crystalline; crystalline polyesters; polyesters
Prior art date: 1990-03-01

Application number

DK91200365.4T

Other languages

Danish (da)

English (en)

Inventor

George William Prof Gray

Andrew Martin Dr Mcroberts

Raymond Dr Denman

Richard Michael Dr Scrowston

David Lacey

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.)

1990-03-01

Filing date

1991-02-20

Publication date

1995-05-01

1991-02-20 Application filed by Akzo Nobel Nv filed Critical Akzo Nobel Nv

1995-05-01 Application granted granted Critical

1995-05-01 Publication of DK0444740T3 publication Critical patent/DK0444740T3/da

Links

238000013500 data storage Methods 0.000 title abstract 4
230000003287 optical effect Effects 0.000 title abstract 4
229920000728 polyester Polymers 0.000 title abstract 4
239000007788 liquid Substances 0.000 title abstract 2
OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 2
125000002723 alicyclic group Chemical group 0.000 abstract 1
125000001931 aliphatic group Chemical group 0.000 abstract 1
125000003118 aryl group Chemical group 0.000 abstract 1
ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 abstract 1
230000002441 reversible effect Effects 0.000 abstract 1
125000001424 substituent group Chemical group 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/682—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens
- C08G63/6824—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6826—Dicarboxylic acids and dihydroxy compounds
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/685—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen
- C08G63/6854—Polyesters containing atoms other than carbon, hydrogen and oxygen containing nitrogen derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6856—Dicarboxylic acids and dihydroxy compounds
- 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
- 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

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Crystallography & Structural Chemistry (AREA)
Materials Engineering (AREA)
Engineering & Computer Science (AREA)
Polyesters Or Polycarbonates (AREA)
Liquid Crystal Substances (AREA)
Liquid Crystal (AREA)
Optical Record Carriers And Manufacture Thereof (AREA)

DK91200365.4T 1990-03-01 1991-02-20 Flydende krystallinske polyestere til optisk datalagring DK0444740T3 (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP90302182		1990-03-01

Publications (1)

Publication Number	Publication Date
DK0444740T3 true DK0444740T3 (da)	1995-05-01

Family

ID=8205310

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK91200365.4T DK0444740T3 (da)	1990-03-01	1991-02-20	Flydende krystallinske polyestere til optisk datalagring

Country Status (9)

Country	Link
US (1)	US5262081A (fr)
EP (1)	EP0444740B1 (fr)
JP (1)	JPH05202174A (fr)
AT (1)	ATE115174T1 (fr)
CA (1)	CA2037369A1 (fr)
DE (1)	DE69105550T2 (fr)
DK (1)	DK0444740T3 (fr)
ES (1)	ES2066329T3 (fr)
GR (1)	GR3015292T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0550105A3 (en) *	1991-12-30	1993-11-18	Akzo Nv	Liquid-crystalline polyurethanes, compositions of said liquid-crystalline polyurethanes, and a device for optical data storage comprising a liquid-crystalline polyurethane
US5480749A (en) *	1994-09-27	1996-01-02	Green; Mark M.	Reversible chiral optical data storage using majority rule of polymer conformation
GB9526485D0 (en) *	1995-12-22	1996-02-21	Secr Defence	Liquid crystal polymers
EP0900239B1 (fr) *	1996-05-22	2002-03-27	Bayer Ag	Substrats photo-adressables et polymeres de groupes secondaires photo-adressables a birefringence inductible elevee
JP4649821B2 (ja) *	2002-06-07	2011-03-16	富士ゼロックス株式会社	ポリエステル、光記録媒体、及び光記録再生装置
JP2004310999A (ja) *	2003-03-24	2004-11-04	Fuji Xerox Co Ltd	光記録媒体と光記録媒体の製造方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3431133A1 (de) *	1984-08-24	1986-03-06	Basf Ag, 6700 Ludwigshafen	Mesogene gruppen enthaltende polymere und deren verwendung
DE3603268A1 (de) *	1986-02-04	1987-09-24	Roehm Gmbh	Verfahren zur reversiblen, optischen datenspeicherung (iii)
DE3603266A1 (de) *	1986-02-04	1987-08-06	Roehm Gmbh	Vorrichtung zur reversibeln, optischen datenspeicherung (ii)
DE3603267A1 (de) *	1986-02-04	1987-08-06	Roehm Gmbh	Vorrichtung zur reversiblen, optischen datenspeicherung (i)
DE3622613A1 (de) *	1986-07-05	1988-01-14	Bayer Ag	Verfahren zur herstellung von polymeren netzwerken mit ueberstrukturen, entsprechende polymere netzwerke und ihre verwendung
DE3623395A1 (de) *	1986-07-11	1988-01-21	Roehm Gmbh	Vorrichtung zur reversiblen, optischen datenspeicherung unter verwendung von polymeren fluessigkristallen
US4818807A (en) *	1986-09-04	1989-04-04	Idemitsu Kosan Co., Ltd.	Liquid-crystalline polymer
DE3752264T2 (de) *	1986-12-29	1999-12-09	Idemitsu Kosan Co. Ltd., Tokio/Tokyo	Flüssigkristallines Polymer
JPH0778218B2 (ja) *	1987-06-29	1995-08-23	出光興産株式会社	液晶ポリマ−組成物
US4959448A (en) *	1988-07-04	1990-09-25	Akzo N.V.	Liquid crystalline side-chain polyesters prepared by polycondensation reactions

1991
- 1991-02-19 US US07/657,022 patent/US5262081A/en not_active Expired - Fee Related
- 1991-02-20 AT AT91200365T patent/ATE115174T1/de not_active IP Right Cessation
- 1991-02-20 DE DE69105550T patent/DE69105550T2/de not_active Expired - Fee Related
- 1991-02-20 EP EP91200365A patent/EP0444740B1/fr not_active Expired - Lifetime
- 1991-02-20 DK DK91200365.4T patent/DK0444740T3/da active
- 1991-02-20 ES ES91200365T patent/ES2066329T3/es not_active Expired - Lifetime
- 1991-02-28 CA CA002037369A patent/CA2037369A1/fr not_active Abandoned
- 1991-03-01 JP JP3057609A patent/JPH05202174A/ja active Pending
1995
- 1995-03-03 GR GR950400470T patent/GR3015292T3/el unknown

Also Published As

Publication number	Publication date
GR3015292T3 (en)	1995-06-30
DE69105550T2 (de)	1995-06-22
DE69105550D1 (de)	1995-01-19
EP0444740B1 (fr)	1994-12-07
CA2037369A1 (fr)	1991-09-02
EP0444740A1 (fr)	1991-09-04
ES2066329T3 (es)	1995-03-01
JPH05202174A (ja)	1993-08-10
ATE115174T1 (de)	1994-12-15
US5262081A (en)	1993-11-16

Publication	Publication Date	Title
DE3672426D1 (de)	1990-08-09	Spurnachlaufverfahren fuer eine optische speicherplatte.
DK682588A (da)	1989-06-09	Fremstilling af optisk aktive 3-desmethylmevalonsyrederivater samt mellemprodukter og fremstilling deraf
EP0288570A4 (fr)	1989-02-23	Support d'enregistrement optique du type draw.
ATE227878T1 (de)	2002-11-15	Legierung mit kongruenter zustandsänderung zur optischen speicherung und datenträger
AU5888280A (en)	1980-12-18	Optical recording medium
ATE3557T1 (de)	1983-06-15	Fluessig-kristalline polymerphase mit cholesterischer struktur, verfahren zu ihrer herstellung und ihre verwendung.
CA2053723A1 (fr)	1992-04-20	Appareil d'enregistrement-lecture du type memoire
SE8501342L (sv)	1986-09-20	Databerare i form av ett foretredesvis rektangulert kort med ett cirkulert omrade for tet optisk registrering av data
GR3015292T3 (en)	1995-06-30	Liquid crystalline polyesters for optical data storage.
MY115700A (en)	2003-08-30	Device for reading from or writing to an optical recording medium
DE3781926D1 (de)	1992-11-05	Medium fuer optische informationsaufzeichnung.
DE69224936D1 (de)	1998-05-07	Auslesen von Signalen für optisches Speichermedium
DE3877192D1 (de)	1993-02-11	Speichermedium fuer optische daten.
ATE122174T1 (de)	1995-05-15	Vorrichtung zur lagerung und wiedergabe von flachen informationsträgern.
NO170885C (no)	1992-12-23	Optisk aktive 1,3-dioksolan-4-karboksylsyreestere, anvendelsen av disse som doteringsstoffer i flytende krystallblandinger samt flytende krystallblandinger inneholdende disse estere
EP0353078A3 (en)	1990-12-05	Optical disk drive system
ATE344310T1 (de)	2006-11-15	Flüssigkristalline phenolester
AU558789B2 (en)	1987-02-12	4-aroylimidazol-2-ones
DE3786962D1 (de)	1993-09-16	Aufzeichnungsanordnung zum einmaligen einschreiben von daten fuer optisches medium.
DE3769269D1 (de)	1991-05-16	Thermoplastische mischungen aus aromatischen polycarbonaten und polystyrolen und ihre verwendung als substrate fuer optische datenspeicher.
FR2653247B1 (fr)	1991-12-06	Procede et dispositif d'ecriture et de lecture d'informations a partir d'un support a base de materiau ferroelectrique.
JPS6456591A (en)	1989-03-03	Element for optical data memory
NO893779L (no)	1990-03-26	Anvendelse av heterocykliske forbindelser inneholdende optisk aktive karboksylsyreestere av oksygen som dopestofferi flytende krystallblandinger og flytende krystallblandinger inneholdende disse.
JPS6431692A (en)	1989-02-01	Optical record medium
GB1374598A (en)	1974-11-20	Optical data storage systems