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1. (WO1998053361) POLARIZABLE AMINES AND POLYIMIDES FOR OPTICAL ALIGNMENT OF LIQUID CRYSTALS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/053361 International Application No.: PCT/US1998/010281
Publication Date: 26.11.1998 International Filing Date: 19.05.1998
Chapter 2 Demand Filed: 21.12.1998
IPC:
C08G 73/10 (2006.01) ,G02F 1/1337 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
73
Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups C08G12/-C08G71/238
06
Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule; Polyhydrazides; Polyamide acids or similar polyimide precursors
10
Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1337
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
Applicants:
ALLIANT TECHSYSTEMS INC. [US/US]; 600 Second Street Hopkins, MN 55343-8384, US
Inventors:
GIBBONS, Wayne, M.; US
SHANNON, Paul, J.; US
ZHENG, Hanxing; US
Agent:
HUNTLEY, Donald, W.; Huntley & Associates 1105 North Market Street P.O. Box 948 Wilmington, DE 19899-0948, US
Priority Data:
08/859,40420.05.1997US
09/080,88318.05.1998US
Title (EN) POLARIZABLE AMINES AND POLYIMIDES FOR OPTICAL ALIGNMENT OF LIQUID CRYSTALS
(FR) AMINES ET POLYIMIDES POLARISABLES SERVANT A L'ALIGNEMENT OPTIQUE DE CRISTAUX LIQUIDES
Abstract:
(EN) The present invention relates to amine compositions and the preparation of polyimides. The polyimides can be used for inducing alignment of a liquid crystal medium with polarized light in liquid crystal display elements.
(FR) L'invention porte sur des compositions d'amines et sur la préparation de polyimides. Ces derniers peuvent servir à induire l'alignement d'un milieu de cristaux liquides par de la lumière polarisée dans des éléments d'afficheurs à cristaux liquides.
Designated States: JP, KR
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020010012793JP2002515067