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AssigneeThe United States of America as represented by the United States Department of Energy
InventorsArkady Zeldin, Neal Carciello, Lawrence Kukacka, Jack Fontana
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This invention relates to high temperature polymer concrete composites comprising about 10-30% by weight of a liquid monomer mixture consisting essentially of an organosiloxane polymer crosslinked with an olefinically unsaturated monomer selected from the group consisting of styrene, methyl methacrylate, trimethylolpropane trimethacrylate, triallyl cyanurate, n-phenylmalimide, divinyl benzene and mixtures theroef; and about 70-90% by weight of an inert inorganic filler system containing silica sand and preferably a member selected from the group consisting of portland cement, Fe.sub.2 O.sub.3, carbon black and mixtures thereof; and optionally a free radical initiator such as di-tert-butyl peroxide, azobisisobutyronitrile, benzoyl peroxide, lauryl peroxide and other organic peroxides to initiate crosspolymerization of the monomer mixture in the presence of the inorganic filler.
A thermally stable polymer concrete composition comprising about 10-30% by weight of a liquid monomer mixture consisting essentially of an organosiloxane polymer containing pendant groups selected from the group consisting of CH.sub.3, CH.dbd.CH.sub.2, C.sub.2 H.sub.5, C.sub.6 H.sub.5, and mixtures thereof, and capable of being crosslinked, and at least one olefinically unsaturated crosslinking monomer in an amount of about 15% to 50% by weight of said monomer mixture, and about 70-90% by weight of an inorganic filler system containing silica sand and portland cement in ratios ranging from about 9 parts sand to 1 part cement, to, 7 parts sand to 3 parts cement.
Dependencies are inferred from the claim text.