C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
18/12, 182/14.3
C08G 59/68 (2006.01) C08G 59/22 (2006.01)
Patent
CA 1083496
HIGH STRENGTH CAST MODULES FOR SUPPORTING REVERSE OSMOSIS MEMBRANES ABSTRACT OF THE DISCLOSURE A rigid, hollow, porous, strongly consolidated reverse osmosis membrane support module having a wall con- taining bonded, resin coated filler particles, wherein the inside of said wall supports a reverse osmosis membrane, is made by: (A) forming a 100 percent solids, solventless, latent catalyzed resin composition consisting essentially of an admixture of liquid epoxy resin, liquid organic acid anhydride curing agent, liquid diepoxide reactive diluent and quaternary ammonium, phosphonium or arsonium salt latent catalyst; the solventless resin composition having a viscosity of below about 100 cp. at 25°C, (B) mixing the solventless resin composition with a quantity of filler particles, so that the filler is coated with resin, and the resin constitutes about 1 to 18 percent of the resin coated filler weight, (C) casting the resin coated filler particles into a mold, the mold having a configuration effective to provide a cast structure having at least one interior axial bore therethrough, (D) heating the mold containing the cast, contacting, resin coated filler particles, to cure the resin and bond adjacent resin coated filler particles together, (E) cooling the mold and removing the cast structure, to provide a strongly consolidated module, having at least one bore therethrough, and (F) casting a reverse osmosis membrane in the interior axial bores of the module. SPECIFICATION - 1 -
269653
Meier Joseph F.
Smith James D.b.
Hopley William G.
Union Carbide Corporation
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