Abstract: A bonded woven fabric compartment containing a super absorbent polymer which absorbs atmospheric water, condensate and water in oil for use in enclosures containing instrumentation and electronic equipment. The polymer is a granular form that when it absorbs water swells and does not migrate out of the compartment.

Abstract: A procedure for drying cables having multiple pairs of insulated wires therein by using a compound comprising a mixture of polymer granules and granules of a lubricating and bond-breaking substance. The polymer granules are swellable and with respect to water and do not electrochemically heat in the presence of water. They encapsulate the water leaving the insulation material unaffected except for being dried. The principal polymer used is a salts of carboxylate. Further, a technique is disclosed for coating or insulation grafting a metallic cationic wire wherein the wire is placed in water in the presence of salts of carboxylate or other appropriate polymers having anionic groups together with a cationic substance, such as lithium. A dc current is then introduced to establish the wires as an anode. By electrolysis action there is established a hydrophobic coating having a polymer-anionic-to-metal-cationic bond with the metal.

Abstract: The present invention relates to a water absorbent packet and the method of using the packet in liquids to be kept free of invasive water. The packets are made of sheets of material which allow the water in the liquid to penetrate into the packet and contact the water absorbent material. Any water present in the liquid which contacts the absorbent material is absorbed from the liquid.The packets can be manufactured to the size desired for use in the system to be kept water free and the desired number of compartments of absorbent material. The amount of absorbent material in the compartments can be measured so that upon water absorption the compartment becomes swollen, giving a visual check for the presence of water. The absorbent compound of this invention can be sodium poly-2-propenoate, carboxymethyl cellulose or other form of the super absorbent composition or polymers which will not migrate through the sheets of material when placed in the liquid and when water is absorbed from the liquid.

Abstract: A technique is disclosed for coating or insulation grafting a metallic cationic wire wherein the wire is placed in water in the presence of salts of carboxylate or other appropriate polymers having anionic groups together with a cationic substance, such as lithium. A dc current is then introduced to establish the wire as an anode. By electrolysis action there is established a hydrophobic coating having a polymer-anionic-to-metal-cationic bond with the metal. The procedure of introducing salts of appropriate anionic polymers and cationic substances where there is an insulation break and short between the wires, providing moisture or standing water and a small dc current has been found useful in repairing such breaks by the formation of an electrochemical coating on the exposed anode wire.