PRODUCTION OF EPOXY RESIN

摘要

PURPOSE:To obtain the title resin which is excellent in heat resistance and adhesiveness, has a high curing rate and can give a laminate excellent in interlaminar adhesion, by reacting tetrabrombisphenol A with a liquid bisphenol A epoxy resin, a phenol novolak epoxy resin, etc. CONSTITUTION:10-60wt% tetrabromobisphenol A (A) is reacted with 40-80wt% liquid bisphenol epoxy resin (B) and 5.0-55wt% phenol or cresol novolak epoxy resin (C) at 140-170 deg.C for 1-4hr in the presence of a catalyst (D) such as an alkylammonium chloride of formula I or II or an imidazole.