Abstract: In at least some embodiments, a system for removing contaminants from fluids includes a fluid inlet and a fluid outlet. The system also includes a fluid pump between the fluid inlet and the fluid outlet and a filter material between the fluid inlet and the fluid outlet. The filter material comprises a dual-valence polymer with negative valence monomer groups and positive valence monomer groups, the negative valence being stronger than the positive valence.

Abstract: In at least some embodiments, a system for removing contaminants from fluids includes a fluid inlet and a fluid outlet. The system also includes a fluid pump between the fluid inlet and the fluid outlet and a filter material between the fluid inlet and the fluid outlet. The filter material comprises a dual-valence polymer with negative valence monomer groups and positive valence monomer groups, the negative valence being stronger than the positive valence.

Abstract: In at least some embodiments, a filter comprises a filtering media. The filtering media is impregnated with chemical compounds that effectively retain water molecules and water-alcohol molecules but not alcohol molecules. The filter also comprises a liquid channeling structure, wherein the liquid channeling structure directs liquid entering an input of the filter to flow through the filtering media before exiting an output of the filter.

Abstract: A process for producing a substantially dry polymer particle powder. A mixture of polymerization reagents is formed from a mixture of at least one monomer source and a solvent selected from the group consisting essentially of water and organic solvents and an initiator source. The mixture of polymerization reagents is sprayed into a heated, controlled atmosphere, forming droplets of the mixture which are allowed to fall through the heated, controlled atmosphere for a sufficient period of time to obtain a desired degree of polymerization. The solvent is continuously evacuated from the atmosphere during the polymerization process.

Abstract: A process for producing a substantially dry polymer particle powder. A mixture of polymerization reagents is formed from a mixture of at least one monomer source and a solvent selected from the group consisting essentially of water and organic solvents and an initiator source. The mixture of polymerization reagents is sprayed into a heated, controlled atmosphere, forming droplets of the mixture which are allowed to fall through the heated, controlled atmosphere for a sufficient period of time to obtain a desired degree of polymerization. The solvent is continuously evacuated from the atmosphere during the polymerization process.

Abstract: A process for producing a substantially dry polymer particle powder. A mixture of polymerization reagents is formed from a mixture of at least one monomer source and a solvent selected from the group consisting essentially of water and organic solvents and an initiator source. The mixture of polymerization reagents is sprayed into a heated, controlled atmosphere, forming droplets of the mixture which are allowed to fall through the heated, controlled atmosphere for a sufficient period of time to obtain a desired degree of polymerization. The solvent is continuously evacuated from the atmosphere during the polymerization process.

Abstract: A process for producing a substantially dry polymer particle powder. A mixture of polymerization reagents is formed from a mixture of at least one monomer source and a solvent selected from the group consisting essentially of water and organic solvents and an initiator source. The mixture of polymerization reagents is sprayed into a heated, controlled atmosphere, forming droplets of the mixture which are allowed to fall through the heated, controlled atmosphere for a sufficient period of time to obtain a desired degree of polymerization. The solvent is continuously evacuated from the atmosphere during the polymerization process.

Abstract: A cable having a thixotropic filling compound therein, the filling compound being a gel composition including a water absorbent hydrocarbon polymer with pendent anionic groups. The composition eliminates shorts caused by moisture contact with such wires. The cable including the composition is stabilized against thermally induced capacitance changes and shows improved oxidation induction times.

Abstract: A composition including a gel, water absorbent hydrocarbon polymer with pendant anionic groups and a tackifier. The gel composition is activated with moisture so that the water absorbent composition migrates to engage and absorb the water. The composition is used as a protective filling around communication wires prior to wrapping and as a filling inside the cable cover containing the wires. The composition eliminates shorts caused by moisture contact with such wires.

Abstract: A gel composition including a gel matrix with a thickener having a water absorbent polymer with pendent anionic groups dispersed therein. Preferred thickeners are organophilic clays such as bentonite and mixtures of such clays with waxes, silica and/or ethylene or polyethylene microspheres.The gel composition is activated with moisture so that the water absorbent polymer migrates to engage and absorb the water. The composition can be used to protect enclosed components or contents from water damage. Also, the gel composition protects wires which carry a small dc current such as the wires of telecommunication cables and splices. The composition eliminates shorts caused by water contact with such wires.

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: Containment means in the form of water-absorbing polymers are included in the path of a refrigeration cycle to remove accumulated water or water vapor that inherently develops. Such polymers do not lose their efficiency even when they become oil coated, which occurs because lubricating oil is normally circulated with the refrigerant and refrigerants like freon are also somewhat oily. Preferably such containment means are in the form of polymer granules included in a bag or sack placed in a readily-openable canister, which itself is placed inside the housing of a dehydrator. This dehydrator housing also has a readily opened lid held on by a quick-disconnecting clamping means.

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.