POROUS COMPOSITE SHEET AND ITS PRODUCTION

PURPOSE:To provide a porous sheet having flame-retardancy and water- absorptivity and exhibiting excellent mechanical properties and to provide a process for producing the porous sheet. CONSTITUTION:The objective porous composite sheet is composed of inorganic fibers and a cured thermosetting resin...

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Bibliographische Detailangaben
Hauptverfasser:	AMIMOTO HIROTAKA, MATSUI NORIKAZU, SASAKI SHINGO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BRAIDING CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING IMPREGNATING OR COATING OF PAPER KNITTING LACE-MAKING LAUNDERING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF TEXTILES OR THE LIKE TRIMMINGS WADDING WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a porous sheet having flame-retardancy and water- absorptivity and exhibiting excellent mechanical properties and to provide a process for producing the porous sheet. CONSTITUTION:The objective porous composite sheet is composed of inorganic fibers and a cured thermosetting resin and has a porosity and water-absorptivity falling within respective specific ranges. The porous composite sheet is produced by producing a composite web from inorganic fibers and a heat-flowable thermosetting resin, thermally curing the web and attaching fine silica particles having particle diameter of