Fire resistant modified epoxy novolac resins and laminae bonded with same

Claim 1

AN EPOXY RESIN COMPOSITION ADAPTED TO BEING CONVERTED, BY ADMIXTURE THEREWITH, OF A CURING AGENT WHICH EFFECTUATES A REACTION AMONG THE OXIRANE GROUPS THEREOF TO PRODUCE A SELF-EXTINGUISHING HEAT-SETTABLE THERMOSET RESIN HAVING FLEIXBLE STRENGTH PROPERTIES UP TO 95,000 POUNDS PER SQUARE INCH AND INNER LAMINAR SHEAR VALUES UP TO 39,000 POUNDS PER SQUARE INCH CONSISTING OF THE REACTION PRODUCT OF AN EPOXY NOVOLAC RESIN AND A HALOPHENOL SELECTED FROM THE CLASS CONSISTING OF BROMINATED AND CHLORINATED MONOPHENOLS IN AN AMOUNT OF SAID MONOPHENOL WHICH IS SUFFICIENT TO PROVIDE AT LEAST ABOUT 10 WEIGHT PERCENT BROMINE WHEN A BROMINATED PHENOL IS EMPLOYED AND AT LEAST 18 WEIGHT PERCENT CHLORINE WHEN A CHLORINATED PHENOL IS EMPLOYED BUT WHICH AMOUNT IS INSUFFICIENT TO REDUCE THE OXIRANE GROUPS PRESENT SUBSTANTIALLY BELOW AN AVERAGE OF TWO OXIRANE GROUPS PER MOLECULE.