Elastomeric liquid polymer vulcanizates from epoxy resin, liquid carboxy terminated polymer, dihydric phenol, and an amine

A cured elastomeric vulcanizate comprising (A) a resinous particulate phase consisting essentially of (1) a major amount of an epoxy resin having an average of from 1.7 to 2.3 epoxide groups per molecule and an epoxide equivalent weight of from about 150 to about 1000, (2) a minor amount of a dihydric compound selected from the group consisting of catechol, resorcinol, hydroxybenzyl alcohols, bis-benzylic alcohol, dihydroxynaphthalenes, and bisphenols of the formula ##STR7## where R is an alkylene group containing 1 to 12 carbon atoms or a bivalent radical containing 1 to 8 atoms of C, O, S, and/or N, (3) a small amount of a liquid carboxylterminated polymer having a polymeric backbone consisting of carbon-carbon linkages and having a weight percent carboxyl content based upon the weight of the polymer of from about 0.5 percent to about 10 percent and a bulk viscosity of from about 500 centipoises to about 2,000,000 centipoises, and (4) as the only curing agent a small amount of one or more amines selected from the group consisting of aliphatic amines and aliphatic heterocyclic amines, said particles having a diameter ranging from about 100 A to about 5.mu. in width, and (B) a continuous elastomeric phase comprising (1) a major amount of the defined liquid polymer, (2) a minor amount of the defined epoxy resin, (3) a small amount of the defined dihydric compound, and (4) as the only curing agent a small amount of one or more of the defined amines, said vulcanizate having a total composition of 100 parts by weight of epoxy resin, from about 100 parts to about 250 parts by weight of liquid carboxyl-terminated polymer, from about 3 parts to about 36 parts by weight of dihydric compound, and from about 2 parts to about 10 parts by weight of amine.