| 摘要 |
PROBLEM TO BE SOLVED: To improve high temperature shelf stability of an epoxy resin composition comprising a biphenyl type epoxy resin and to attain high flame retardancy without using conventional flame retardants, that is, a halogen compound- containing flame retardant and an antimony compound. SOLUTION: This composition comprises (1) 0-30 pts.wt., based on 100 pts.wt. of a biphenyl type epoxy resin, of either a terpene type epoxy resin or a cresol novolak type epoxy resin, (2) 0-30 pts.wt., based on 100 pts.wt. of a xylok type phenol resin, of either a terpene type phenol resin or a phenol novolak type resin, (3) an amino group-containing polyether-modified polysiloxane compound, a silicone compound, as a flame retardant and (4) at least 87 wt.%, based on the whole composition, of fused silica as an inorganic filler, whereby the composition can attain a glass transition temperature of at least 150 deg.C and the V-0 class of the flame retardancy standard (UL 94) and exhibit an improved high temperature shelf stability.
|
