PREPREG USING INORGANIC FIBER NONWOVEN FABRIC CONTAINING METAL HYDROXIDE, LAMINATED SHEET AND PRINTED-WIRING BOARD

PROBLEM TO BE SOLVED: To provide laminated sheets having good flame retardance and heat resistance without using a halogen based flame-retardant, a phosphorus based flame-retardant and a nitrogen based flame-retardant. SOLUTION: A prepreg to be used is obtained by impregnating an inorganic fiber non...

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Bibliographische Detailangaben
Hauptverfasser:	HORIUCHI TAKESHI, MAGOME KAZUYUKI, KUMAKURA YOSHITOSHI
Format:	Patent
Sprache:	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 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:	PROBLEM TO BE SOLVED: To provide laminated sheets having good flame retardance and heat resistance without using a halogen based flame-retardant, a phosphorus based flame-retardant and a nitrogen based flame-retardant. SOLUTION: A prepreg to be used is obtained by impregnating an inorganic fiber nonwoven fabric containing 40-90 wt.% metal hydroxide with a varnish using a resin composition containing a thermosetting resin as the essential component and none of a halogen based flame-retardant, a phosphorus based flame-retardant and a nitrogen based flame-retardant and drying the impregnated fabric.