Abstract: A high-current electrical machine, comprises a moving member and at least one current collector brush in interface contact with the moving member where the brush comprises a plurality of metal fibers plated with a metal-lubricant coating, the metal fiber and coating being annealed together, the coating being effective to provide a lubricating effect and minimize wear at the area of brush contact with the rotating member.

Abstract: An ultra thin laminate is made by: (1) assembling a laminate stack-up consisting of: one paper sheet having a top decorative surface and a bottom surface coated with a resinous film, about 0.25 mil to about 5 mil thick, effective to opacify the paper and provide a barrier to resin flow, and one abrasion resistant protective overlay sheet disposed in contact with the decorative surface of the paper sheet; (2) heat and pressure consolidating the stack-up to form a unitary decorative laminate having a thickness of between about 5 mil and about 15 mil, and having a resinous film on one side that is glue adherable.

Abstract: A heat and pressure consolidated embossing assembly, for use in making decorative laminates, consists of an embossing sheet, having a thickness of between about 0.025 inch to 0.250 inch, disposed between two fibrous exterior layers impregnated with a resinous material, where the thickness ratio of each fibrous exterior layer:embossing sheet is from about 1:2.5 to 1:12.

Abstract: An epoxy-styrene, solventless resin impregnating varnish, having an atmospheric catalyzed pot life at room temperature of at least 45 days, is made by mixing: (1) the product of the reaction of (a) 1 part of an epoxy resin mixture, comprising solid epoxy resin and liquid epoxy resin wherein the weight ratio of solid epoxy: liquid epoxy is between 1:1 to 1:10; with (b) between about 0.01 part to 0.06 part of maleic anhydride and (c) a catalyst; under such conditions that the epoxy diester formed has an acid number of between about 0.5 to 3.0; with (2) a coreactive vinyl monomer; and between about 0.0003 part to 0.004 part of a room temperature stabilizer (3) between about 0.3 part to 1.2 part of a polycarboxylic anhydride, which is soluble in the mixture of (1) and (2) and an amount of free radical catalyst that is effective to provide a catalytic effect on the impregnating varnish and to cure it at temperatures of over about 85.degree. C., and with (4) between 0.0005 part to 0.

Abstract: An emulsion, formed at the interface of an acidic solution and a solvent, is removed by passing at least one continuous belt through the emulsion by floating action, where portions of the emulsion attach to the surface of the belt material.

Abstract: A highly fluid, solventless, resinous, impregnating and coating composition, suitable as a high voltage insulation for electrical members, is made from an admixture containing: 100 parts of an epoxy resin, about 25 to 200 parts of an acid anhydride reactive with the epoxy resin, and about 0.002 to 1.00 part of a selected metal carbonyl, acting as a latent accelerator.

Abstract: A sodium Beta-alumina thin film is coated onto a supporting substrate by forming an agglomerate-free, hydrolyzed sol, principally comprising an electrically surface active polymer formed by the hydrolysis and peptization of sodium and aluminum alkoxides, which is applied to the substrate. The substrate and applied sol are then heated to crystallize the polymer and form a solid film having pores with radii of up to about 250 Angstrom units.

Abstract: A flexible resin adhesive coated substrate is made by: (A) coating a sheet material with a wet, heat reactive adhesive resin, containing a monomer and an amount of an ultraviolet radiation sensitive photoinitiator effective to cause polymerization of monomer in response to ultraviolet radiation, and (B) applying ultraviolet radiation to the adhesive resin coating on the sheet material to polymerize monomer without the application of heat, forming a dry, uncured coating of adhesive bonded to the sheet material.

Abstract: A resinous composition, suitable as a high voltage insulation for electrical members, is made from an admixture containing: 100 parts of an epoxy resin, about 25 to 200 parts of an acid anhydride reactive with the epoxy resin, about 0.01 to 2.0 parts of chromium or zirconium acetylacetonate, acting as a latent accelerator and about 0.3 to 30 parts of a selected organic carboxylic acid, acting as a co-accelerator.

Abstract: A method of curing phenolic resin near exposed polyethyleneterephthalate subject to degradation by vaporous materials, comprises removing free phenol from the phenolic resin and heating the resin to a cured state.

Abstract: A high temperature capability, water soluble polyester resin solution is made by esterifying an admixture comprising: an organic, aliphatic dihydric alcohol, an organic, polycarboxylic acid containing major portions of aromatic tricarboxylic acid, an organic, aliphatic dicarboxylic acid, and tris (2 hydroxy alkyl) isocyanurate; and then adding an amount of organic solvent effective to provide a solution; wherein the esterification is continued until the acid value drops to between about 35 to about 45 and wherein the mole ratio of OH/COOH=1.1 to 2.0.

Abstract: A liquid polymer is formed in a low temperature polymerization reaction involving organo-metallic sodium and aluminum compounds, at least one of which is partially hydrolyzed. The polymer is hydrolyzed, dried to form an amorphous sodium Beta-alumina precursor, and then heated, at between 1,200.degree. C. and about 1,550.degree. C., to form a ceramic, comprising ion-conductive sodium Beta-alumina which is useful as a solid electrolyte.

Abstract: An insulated electrical member is made, having in combination, an electrical member covered with insulation and a conducting varnish, where an abrasion resistant stress grading system covers at least part of the conducting varnish, the stress grading comprising: (1) a first base layer of resinous paint containing non-linear SiC having a resistivity value of between 2,000 to 4,000 Meg. Ohm/Square, in contact with the conducting varnish, (2) a second overlapping layer of resinous paint containing non-linear SiC having a resistivity value of between 4,000 to 6,000 Meg. Ohm/Square and containing at least one fibrous support, covering the first base layer and (3) an overcoat of an arc and track resistant resinous insulating varnish; where, at the point of overlap of the SiC layers, the thickness ratio of the base SiC layer:overlapping SiC layer is from 1:1 to 1:15.

Abstract: An electrical apparatus, comprising an electrical conductor, is encapsulated with a cured, solid insulation comprising bonded, catalyzed, resin coated filler particles, where the resin constitutes from about 1 weight percent to about 12 weight percent of the resin coated filler particle weight.

Abstract: A method for concentrating and recovering uranium material from an aqueous solution, comprises passing a feed solution containing uranium through at least one reverse osmosis membrane system to concentrate the uranium, and then flushing the concentrated uranium solution with water in a reverse osmosis membrane system to further concentrate the uranium.

Abstract: A highly fluid, solventless, resinous, impregnating and coating composition, suitable as a high voltage insulation for electrical members, is made from an admixture containing: 100 parts of an epoxy resin, about 25 to 200 parts of an acid anhydride reactive with the epoxy resin, and about 0.002 to 1.00 part of a selected metal acetylacetonate, acting as a latent accelerator.

Abstract: An iron engaging slot wedge, for use in coil slots of dynamoelectric machines is made of a glass fiber core impregnated with a cured thermoset resin, and covered on at least two sides with a facing layer of a porous aromatic polyamide mat, impregnated with a cured thermoset resin.

Abstract: An epoxy-styrene, solventless resin impregnating varnish, having an atmospheric catalyzed pot life at room temperature of at least 45 days, is made by mixing: (1) the product of the reaction of (a) 1 part of an epoxy resin mixture, comprising solid epoxy resin and liquid epoxy resin wherein the weight ratio of solid epoxy: liquid epoxy is between 1:1 to 1:10; with (b) between about 0.01 part to 0.06 part of maleic anhydride and (c) a catalyst under such conditions that the epoxy diester formed has an acid number of between about 0.5 to 3.0; with (2) a coreactive vinyl monomer; and between about 0.0003 part to 0.004 part of a room temperature stabilizer; (3) between about 0.3 part to 1.2 part of a polycarboxylic anhydride, which is soluble in the mixture of (1) and (2), and an amount of free radical catalyst that is effective to provide a catalytic effect on the impregnating varnish and to cure it at temperatures of over about 85.degree. C., and with (4) between 0.0005 part to 0.

Abstract: A metal casting, containing connected pores, is impregnated with a halocarbon resistant barrier resin, consisting essentially of the admixture of a polyester resin, and from about 1 wt. % to about 70 wt. % of a polyfunctional monomer modifier selected from the group consisting of trimethylolpropane triacrylate, divinyl benzene, pentaerythritol triacrylate or their mixtures, which after curing provides a casting which is resistant to chemical and solvent attack by chlorodifluoromethane and dichlorodifluoromethane and which is impervious to gases and liquids.

Abstract: A horizontally disposed iron/air battery cell, comprising two horizontally disposed air electrodes having air and electrolyte contacting sides, and side casings for holding the air electrodes, where the air electrodes and side casings define an electrolyte compartment containing electrolyte and a horizontally disposed iron electrode, with one casing side having at least one electrolyte inlet, and the opposite casing side having at least one electrolyte outlet, is operated by supplying air to the air side of the air electrode, and circulating electrolyte through a pump and then through the electrolyte compartment of the cell, where the total cross-sectional area of the outlet is between 1.25 to 5 times greater than the total cross-sectional area of the inlet, causing the pressure on the electrolyte contacting sides of the air electrodes to be between 0.5 psi. to 6.5 psi. less than the pressure on the air sides of the air electrodes.