Abstract: An improved method and apparatus for the production of multi-gauge strip is disclosed wherein the multi-gauge strip comprises a first strip of metal having a first thickness and extending longitudinally for a given length. A second strip of metal has a second thickness, is narrower in width than the first strip, and coextends longitudinally with the first strip of metal. The first and second strips of metal are intimately bonded in direct metal-to-metal contact without the use of a welding or brazing material. The multi-gauge strip has a first portion extending the given length with a third thickness substantially equal to the sum of the first and second thicknesses and a second portion of substantially constant width extending the given length having a fourth thickness substantially equal to the first thickness.

Abstract: A diaphragm for electrolytic cells for the electrolysis of aqueous salt solutions is comprised of an electrochemically active porous portion attached to an electrochemically inactive substantially fluid impervious portion. The electrochemically inactive portion is comprised of a fabric layer attached to a fluid impervious film layer. The electrochemically active porous portion is comprised of asbestos fibers, preferably deposited on a porous, lightweight thermoplastic fabric.

Abstract: A composite fiber reinforced plastic frame and method of making such a frame are provided wherein a thin corrosion resistant liner material having a highly reinforced structural core is at least partially formed by wrapped roving layers of glass fiber impregnated with a catalyzed thermosetting resin that possesses high strength and a low coefficient of thermal expansion.

Abstract: A rolling mill apparatus for reducing the thickness of a continuous strip material comprises at least two rolls between which the strip passes and inflatable pads for substantially maintaining the vertical and lateral alignment of the rolls and for substantially preventing roll shifting and/or cross-over. The inflatable pads are disposed between roll support assemblies and their respective support structures to substantially eliminate clearances that may develop between them. The inflatable pads preferably comprise a composite metal or metal alloy panel having inflatable fluid passageways.

Abstract: An improved hydrogen evolution cathode with a conductive metal core and an integral Raney-type catalytic surface predominantly derived from an adherent ternary aluminide Beta structured intermetallic crystalline precursory outer portion of the metal core is disclosed. The precursory outer portion preferably has molybdenum added to give a percursor alloy having the formula Ni.sub.x Mo.sub.y Al.sub.3 where x is within the range of from about 80 to about 95 weight percent and y is within the range of from about 5 to about 20 weight percent of the Ni-Mo portion of the alloy. Also disclosed is a method of producing a low overvoltage cathode. The method includes the steps of taking a Ni-Mo core or substrate having about 5-20 weight percentage of Mo and coating it with aluminum, heat treating to form a Ni--Mo--Al ternary alloy with mostly NiAl.sub.3 (ordered orthorhombic) crystal structure and then leaching out the Al to produce a binary NiMo alloy Raney surface.

Abstract: An improved reticulate electrode is produced by coating only one surface with a hydrophobic coating agent. Suitable hydrophobic coating agents include thermoplastic polymers such as polyolefins, polyhaloolefins, polyarylene sulfides and sulfone polymers. A preferred embodiment of the reticulate electrode is produced in a method which comprises:(a) affixing filaments to a support fabric to form a network of filaments, the filaments being comprised of a metal or metal sensitized plastic,(b) depositing an electroconductive metal on the filaments to form metal coated filaments, the deposition providing interfilament bonding at contact sites between adjacent filaments,(c) removing the support fabric from the metal coated filament network to produce a reticulate electrode having a porosity of at least 80 percent, and(d) depositing on only one surface of the reticulate electrode a coating of a hydrophobic coating agent.

Abstract: A polyurethane foam which is a reaction product of a polyol reactant, an organic polyisocyanate reactant, a reaction catalyst and a foaming agent, said polyol reactant is made by (1) reacting starch with methanol in the presence of an acid catalyst to form a crude methyl glucoside reaction product; (2) then admixing this reaction product with an amine in the presence of a basic catalyst followed by (3) oxyalkylating this mixture with a lower alkylene oxide.

Abstract: Described is a method for treating an animal for bovine mastitis wherein said animal is administered an effective amount of at least one metallic salt of pyridine-2-thione-N-oxide to treat or prevent bovine mastitis.

Abstract: An improved shoe insole having antibacterial and antifungal properties comprising a flexible polyurethane foam which is prepared from a reaction mixture incorporating an effective antibacterial and antifungal proportion of a pyridinethione compound.

Abstract: Described is a method for treating an animal for swine exudative epidermitis wherein said animal is administered an effective amount of at least one metallic salt of pyridine-2-thione-N-oxide.

Abstract: A process for producing neutral calcium hypochlorite comprises admixing lime, an alkali metal hypochlorite and dibasic calcium hypochlorite crystals in a mixing zone slurry. The mixing zone slurry is reacted with chlorine to form a paste of neutral calcium hypochlorite. The paste is then separated into a cake of neutral calcium hypochlorite and a paste liquor. A slurry of lime is fed to a crystallizer to react with the paste liquor to form a slurry of dibasic calcium hypochlorite crystals in a mother liquor. Crystals of dibasic calcium hypochlorite are then separated from the dibasic mother liquor and recycled to the mixing zone. The process of the present invention provides an efficient method of recovering calcium hypochlorite values from process liquors while reducing energy costs expended in the recovery. The process further provides rapid recovery of dibasic calcium hypochlorite for reuse in a neutral calcium hypochlorite process by optimizing separation rates.

Abstract: A process for removing chlorate ions from a recirculating anolyte brine as typically used in membrane chlor-alkali cells is disclosed. In this, a portion of the circulating brine after dechlorination and resaturation with additional alkali metal chloride is diverted and treated with an acidified aliphatic aldehyde to convert substantially all of the hypochlorite and chlorate to chlorine dioxide, chlorine gas and chloride ion. When performed in this manner, substantially lower quantities of acid are required as compared to prior art processes and the problems with the generation of excessive quantities of ClO.sub.2 are minimized.

Abstract: Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and containing substantially no undesired 2-hydroxypyridine-N-oxide or metal salt complexes thereof, by(1) making sodium pyrithione by reacting a 2-halopyridine-N-oxide with sodium hydrosulfide and sodium carbonate (or a mixture of sodium carbonate and sodium hydroxide) under selected addition temperatures and reaction temperatures and in selected mole ratios; followed by(2) making zinc pyrithione by reacting the sodium pyrithione with a zinc salt.

Abstract: A fire and heat resistant container having at least the sidewall partially formed from fibrous material with an inner surface and an outer surface that has a plurality of laminae of predetermined composition and thickness arrayed in a specific manner therebetween is provided to protect an object or substance adjacent the inner surface from a fire or heat generating source adjacent the outer surface. The laminae are bonded together by a fire resistant bonding agent of predetermined thickness.

Abstract: The disclosure teaches improved cast copper alloys exhibiting surprisingly good hot rollability and a method of processing copper base alloys to provide cast structures having good hot rollability, especially those containing silicon and tin. In accordance with the method of the invention, ingots are direct chill cast in a mold from liquid metal wherein the melt temperature entering the mold is 100.degree. to 350.degree. C. in excess of the liquidus temperature.

Abstract: A process for improving the fatigue strength and fatigue life of a substantially single phase copper-aluminum-silicon alloy is described. The process comprises cold working the copper alloy from about 75% to about 98% and heating the alloy at a temperature of about 200.degree. C. to about 350.degree. C. for a time period of at least about 5 minutes.

Abstract: A fire and heat resistant partition having a plurality of lamina between a first side and an opposing second side is provided to protect an object adjacent the first side from a fire or heat generating source adjacent the second side, the first lamina being formed at least partially of aluminum. The first lamina is bonded to at least one ply that is formed from multiple laminae of fibrous material which are bonded to an intermediate lamina of predetermined thickness formed at least partially of aluminum.

Abstract: An improved cathode with a conductive metal core and a Raney-type catalytic surface predominantly derived from an adherent Beta Nickel (NiAl.sub.3) crystalline precursory outer portion of the metal core is disclosed. The precursory outer portion preferably has molybdenum added to give a precursor alloy having the formula Ni.sub.x Mo.sub.1-x Al.sub.3 where x is within the range of from about 5 to about 15 weight percent. Also disclosed is a method of producing a low overvoltage cathode. The method includes the steps of taking a Ni-Mo core or substrate having about 5-20 weight percentage of Mo and coating it with aluminum then heat treating to form a Ni-Mo-Al alloy with mostly Beta Nickel (NiAl.sub.3) structure and then leaching out the Al to produce a Raney surface.

Abstract: A process for preparing hypochlorous acid in a sweep reactor is described in which gaseous chlorine is passed rapidly across the surface of an agitated aqueous solution of .[.alkali metal.]. .Iadd.sodium .Iaddend.hydroxide at a reduced temperature. The resulting gaseous product mixture of hypochlorous acid, chlorine monoxide, and unreacted chlorine is conveyed from the reactor to a suitable scrubber to produce an aqueous hypochlorous acid solution.The aqueous reaction product of the sweep reactor is a suspension of .[.alkali metal.]. .Iadd.sodium .Iaddend.chloride in .[.alkali metal.]. .Iadd.sodium .Iaddend.hypochlorite, which is withdrawn and filtered to separate the solid. The clarified aqueous solution of .[.alkali metal.]. .Iadd.sodium .Iaddend.hypochlorite is reacted with the aqueous hypochlorous acid solution from the scrubber, chlorine and lime to form an aqueous slurry of calcium hypochlorite.