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

摘要

PROBLEM TO BE SOLVED: To provide laminated sheets having good flame retardance and heat resistance without using a halogen based flame-retardant, a phosphorous based flame-retardant and a nitrogen based flame-retardant.;SOLUTION: A prepreg to be used is obtained by impregnating a chemical 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.;COPYRIGHT: (C)2001,JPO