POLYIMIDE PRECURSOR, POLYIMIDE AND PROCESS FOR PRODUCING THEM

PROBLEM TO BE SOLVED: To provide a polyimide precursor that gives a polyimide useful as a substrate for a flexible-film liquid crystal display having such properties as high transparency, high glass transition temperature, low birefringence, high toughness and the like in a good balance, to provide...

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Bibliographische Detailangaben
Hauptverfasser:	MASAMI HIROSHI, HASEGAWA MASATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CHEMISTRY COMPOSITIONS BASED THEREON CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY DISPLAYING EDUCATION FREQUENCY-CHANGING LABELS OR NAME-PLATES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS SEALS SIGNS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP
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