Processing

Please wait...

Settings

Settings

1. WO1996006145 - LIQUID-CRYSTALLINE POLYETHERS

Publication Number WO/1996/006145
Publication Date 29.02.1996
International Application No. PCT/EP1995/003176
International Filing Date 10.08.1995
Chapter 2 Demand Filed 07.02.1996
IPC
C09K 19/38 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
19Liquid crystal materials
04characterised by the chemical structure of the liquid crystal components
38Polymers, e.g. polyamides
G02B 5/30 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
CPC
C09K 19/388
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
19Liquid crystal materials
04characterised by the chemical structure of the liquid crystal components ; , e.g. by a specific unit
38Polymers
3833with mesogenic groups in the side chain
3876Polyoxyalkylene polymers
388Polyepoxides
G02B 5/3016
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
3016involving passive liquid crystal elements
G02F 2001/133637
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13363Birefringent elements, e.g. for optical compensation
133637characterized by the wavelength dispersion
Applicants
  • AKZO NOBEL N.V. [NL/NL]; Velperweg 76 NL-6824 BM Arnhem, NL (AllExceptUS)
  • WIT DE, Paulus, Pieter [NL/NL]; NL (UsOnly)
  • REESINK, Johan, Bernard [NL/NL]; NL (UsOnly)
  • GOETHALS, Eric, Jozef [BE/BE]; BE (UsOnly)
  • LIBISZOWSKI, Jan, Antoni [PL/PL]; PL (UsOnly)
  • MIJS, Willem, Jacobus [NL/NL]; NL (UsOnly)
  • STEENBERGEN, Andre [NL/NL]; NL (UsOnly)
Inventors
  • WIT DE, Paulus, Pieter; NL
  • REESINK, Johan, Bernard; NL
  • GOETHALS, Eric, Jozef; BE
  • LIBISZOWSKI, Jan, Antoni; PL
  • MIJS, Willem, Jacobus; NL
  • STEENBERGEN, Andre; NL
Agents
  • SCHALKWIJK, Pieter, Cornelis; Akzo Nobel N.V. Patent Dept. (Dept. APTA) P.O. Box 9300 NL-6800 SB Arnhem, NL
Priority Data
940134219.08.1994NL
950050314.03.1995NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LIQUID-CRYSTALLINE POLYETHERS
(FR) POLYETHERS LIQUIDES CRISTALLINS
Abstract
(EN)
The present invention is in the field of liquid-crystalline polymers, notably liquid-crystalline polyethers. The polyethers according to the invention are obtained by polymerising a monomer mixture comprising an OH-containing compound and a mesogenic group-containing mono-epoxide. Polyethers obtained from such a monomer mixture were found to have a high Tg in spite of not having a particularly high molecular weight. Moreover, the polyethers according to the invention are mainly OH-terminated. The liquid-crystalline polyethers according to the invention are suitable for use in the retardation layers of LCDs, digital data storage such as on Compact Discs or digital films, low density digital storage, and analog data storage, while if dyes are present, films containing liquid-crystalline polyethers according to the invention are suitable for use as polarisers.
(FR)
L'invention se rapporte au domaine des polymères liquides cristallins, notamment les polyéthers liquides cristallins que l'on obtient par polymérisation d'un mélange de monomères comprenant un composé contenant OH ainsi qu'un mono-époxyde contenant un groupe mésogène. Les polyéthers obtenus à partir d'un tel mélange de monomères se sont avérés posséder une température de transition vitreuse élevée bien qu'ils ne possèdent pas un poids moléculaire particulièrement élevé. En outre, ces polyéthers ont généralement une terminaison OH, et ils sont conçus pour être utilisés dans les couches retardatrices de dispositifs d'affichage à cristaux liquides, de stockage de données numériques tels que des disques compacts ou des films numériques, de stockage numérique à faible densité et de stockage de données analogiques; par contre, lorsque des matières colorantes sont présentes, les films contenant les polyéthers cristallins liquides selon l'invention sont utiles en tant que polariseurs.
Latest bibliographic data on file with the International Bureau