Method for producing porous liquid crystal polymer

This production method includes a first step, a second step and a third step. In the first step, a liquid crystal polymer is sheet-formed to form a non-porous sheet (3). In the second step, the non-porous sheet (3) is impregnated with a supercritical fluid 15. In the third step, the pressure or temp...

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Bibliographische Detailangaben
Hauptverfasser:	KOUNO, YOSHINORI, TARUNO, TOMOHIRO, ONISHI, HIDENORI, SHUTO, SHUNSUKE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PRINTED CIRCUITS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	This production method includes a first step, a second step and a third step. In the first step, a liquid crystal polymer is sheet-formed to form a non-porous sheet (3). In the second step, the non-porous sheet (3) is impregnated with a supercritical fluid 15. In the third step, the pressure or temperature of the atmosphere of the non-porous sheet 3 impregnated with the supercritical fluid (15) is lowered to be less than the critical point of the supercritical fluid (3), thereby foaming the non-porous sheet 3 to produce a porous liquid crystal polymer sheet (1).