Abstract: A highly pure cyanuric acid produced by pyrolyzing a nitrogenous containing material capable of yielding cyanuric acid, such as urea, in an alkyl dinitrile solvent such as adiponitrile, at elevated temperatures, is disclosed. The overall process converts substantially all of the urea to cyanuric acid and cyanuric acid derivatives which are capable of being converted into trichloroisocyanuric acid and similar compounds, while allowing substantially complete recovery of the nitrile solvent for reuse.

Abstract: Graft copolymers are prepared by the polymerization of an ethylenically unsaturated monomer, or a mixture of such monomers, in the presence of an azo di-ester polyol. Presence of the azo group in the polyol reactant itself serves as a free radical initiator site for the graft copolymerization reaction. The copolymers formed are utilized in the formulation of polyurethane compositions.

Abstract: A novel process for the preparation of methyl glucoside-amine-based polyols which involves reacting starch with methanol in the presence of an acid catalyst to form a crude methyl glucoside reaction product. An amine compound is admixed with the reaction product, and the mixture is then oxyalkylated with a lower alkylene oxide. Polyurethane foams may be prepared by reacting the resulting polyether polyols with an organic polyisocyanate in the presence of a foaming agent and a reaction catalyst. The physical properties of the resulting foams are excellent.

Abstract: An apparatus and process is provided for electromagnetically casting molten material into a desired shape. A containment zone is established. The containment zone has a first section for electromagnetically containing the molten material and a second section downstream and communicating with the first section for forming the molten material into the desired shape. The improvement comprises a heat extraction device for directing a cooling medium into the containment zone whereby the cooling medium passes the molten material in the second section to rapidly solidify the molten material prior to passing the molten material in the first section to lower the temperature in the contained molten material to minimize superheating. A second embodiment of the invention includes a secondary cooling device associated with the heat extraction device for directing a cooling medium against the solidified material.

Abstract: An improved indirect-acting powder-actuated fastening tool is provided wherein the power level may be continuously varied and wherein the tool may be discharged only if the muzzle is pressed against the work surface, with the tool substantially perpendicular thereto. A barrel and a barrel breech are adjustably screwed together and telescopically carried by a slide assembly which, in turn, is telescopically carried by the tool receiver. The slide assembly and the barrel are operably connected for corotation, whereby rotation of the slide assembly produces a joint axial displacement, of the barrel and the slide assembly, relative to the barrel breech, to vary the initial volume.

Abstract: An improved cathode with a conductive metal core and a Raney-type catalytic surface predominantly derived from an adherent ternary aluminide intermetallic crystalline precursory outer portion of the metal core is disclosed. The precursory outer portion preferably has molybdenum and titanium added to give a precursor alloy having the formula Ni.sub.x Mo.sub.y Ti.sub.z Al.sub.3 where x is within the range of from about 74 to about 94 weight percent, y is within the range of from about 5 to about 20 weight percent and z is within the range of from about 1 to about 5 weight percent of the Ni-Mo-Ti 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-Ti core or substrate having about 5-20 weight percentage of Mo and about 1-5 weight percent Ti and coating it with aluminum then heat treating to form a Ni-Mo-Ti-Al ternary alloy with mostly NiAl.sub.

Abstract: Described is a process for exchanging some or all of the radicals R' in alkoxysilane cluster compounds with different radicals R"; this process being based on the following reaction: ##STR1## wherein R is hydrogen, an alkyl, an alkenyl, and an aryl, or an aralkyl; and each R' is independently selected from the same groups as R with the proviso that at least a majority of said R' radicals are sterically hindered alkyl groups having at least 3 carbon atoms; and each R" is selected from groups consisting of alkyl groups, alkenyl groups, aryl groups, aralkyl groups, functionally substituted alkyl, alkenyl, aryl and aralkyl groups, and polyoxyalkylene groups with the proviso that R" radicals are different than R' radicals; and n is a number from 1 to 9.

Abstract: A process for recrystallization of thin strip material includes a device for electromagnetically melting the thin strip material to provide a molten surface layer and a substantially solid core. Apparatus provides relative movement between the thin strip and the device for electromagnetically melting. Also, an apparatus resolidifies the molten surface layer to provide a preferred crystal structure in the thin strip material.

Abstract: Cyanuric acid is produced in a process in which a solution of urea or biuret is pyrolyzed by contacting the solution with a heated gas at temperatures which substantially pyrolyze urea or biuret while concurrently evaporating the solvent.The novel process simplifies solvent recovery, reduces solvent losses and has reduced requirements for processing equipment.

Abstract: A process for stabilizing in situ soluble mercury in deposits of mercury-containing materials which comprises treating the deposits with a stabilizing amount of an inorganic sulfur compound. Suitable inorganic sulfur compounds include sulfides, alkali metal thiosulfates, alkaline earth metal thiosulfates, iron thiosulfates, alkali metal dithionites, and alkaline earth metal dithionites. These inorganic sulfur compounds react with soluble mercury to convert it to insoluble mercury compounds and substantially inhibit its removal by elution with water from the deposits of mercury-containing material.The process may be used to treat land areas, landfill deposits, or submarine sediment deposits to reduce soluble mercury concentrations to a few parts per billion.

Abstract: Layered glass batch pellets are produced in a continuous process which comprises the steps of:(a) maintaining in the pelletizing zone of a rotary apparatus a moving bed of recycle pellets,(b) feeding sand and particles of a calcium carbonate source into the pelletizing zone,(c) feeding a Na.sub.2 O source comprised of a solution of sodium hydroxide into the pelletizing zone, the recycle pellets being coated with a layer comprised of the solution of sodium hydroxide, the sand and the calcium carbonate source and forming layered pellets,(d) passing the layered pellets into a heated drying zone to form dried layered pellets, the dried layered pellets having a residual moisture content of from about 4 to about 12 percent by weight,(e) passing the dried layered pellets from the drying zone to a recycle zone,(f) recycling a portion of the dried layered pellets to the pelletizing zone as the recycle pellets, and(g) recovering a portion of the dried layered pellets from the recycle zone.

Abstract: A process and apparatus for casting a material into a desired thin strip shape. Molten material is formed into the thin strip shape by an electromagnetic containing and forming process. In a first portion the molten material is shaped into the desired thin strip shape and in a second portion upstream of and communicating with the first portion the molten material is electromagnetically contained in a sump. The sump at a top surface thereof has a substantially larger cross-sectional area as compared to a cross-sectional area of the thin strip shape.

Abstract: Disclosed are selected 3-trihalomethyl-5-ureido-1,2,4-oxadiazole and -1,2,4-thiadiazole compounds of the formula: ##STR1## wherein X is either Cl or F and Y is either O or S. These compounds are shown to be effective against agricultural viruses.

Abstract: Disclosed are selected 2-trichloromethyl-4-pyrimidinyl carbonates having the formula: ##STR1## wherein X is an atom selected from the group consisting of oxygen and sulfur; R is a lower alkyl group having 1 to 4 carbon atoms or a phenyl group; R.sup.1 is hydrogen or halo; and R.sup.2 is a lower alkyl group having 1 to 4 carbon atoms. These compounds are disclosed to be agricultural fungicides.

Abstract: Silver coated particles having high concentrations of metallic silver are produced which are useful in forming alloys with metals such as mercury. The process comprises admixing carrier particles with an aqueous solution of a silver salt to form a slurry. A hydrazine compound is added to the slurry to precipitate metallic silver on the carrier particles in a medium which becomes increasingly acidic. Silver coated particles having a metallic silver content up to 90 percent by weight of the coated particle can be produced in a single impregnation under conditions which prevent the formation of explosive by-products such as silver nitride. The silver coated particles are particularly suitable for the recovery of metals such as mercury from fluids.

Abstract: Disclosed are selected 2-trichloromethyl-4-pyrimidinyl carboxylic esters having the formula: ##STR1## wherein R is a lower alkyl group having 1 to 4 carbon atoms, a lower alkenyl group having 1 to 4 carbon atoms a lower halo alkyl group having 1 to 4 carbon atoms or an unsubstituted or substituted phenyl group; R.sup.1 is hydrogen or halo; and R.sup.2 is a lower alkyl group having 1 to 4 carbon atoms. These compounds are disclosed to be agricultural fungicides.

Abstract: A current distributor for an electrode for an electrolytic cell for the electrolysis of aqueous solutions of ionic compounds is provided which comprises an electrically conductive material having a front surface comprised of a plurality of electrode-engaging means projecting from it for attachment to a foraminous electrode. The rear surface of the current collector is suitable for attachment to an electrical conductor. The novel current distributors are particularly suitable for use with reticulate electrodes.

Abstract: The piston return mechanism for a powder actuated piston-type fastener driving tool utilizes a tilting muzzle bushing to engage the fastener driving face of the piston. After the piston has been driven, the muzzle bushing is displaced manually forwardly, by means of a slide, until the muzzle bushing tilts to a position where it can contact the fastener driving face of the piston. The muzzle bushing is then returned breechwardly, pushing the piston in front of it back into the barrel bore to a driving position. When the driving position of the piston is reached, the muzzle bushing cams out of the tilted position into a position where it is coaxial with the piston.

Abstract: A novel briquet is comprised of compressed hydrated calcium hypochlorite particles having a calcium hypochlorite content in the range from about 55 to about 75 percent by weight, a water content in the range from about 4 to about 10 percent by weight and a compression strength of from about 2 to about 95 kilograms. The briquets may be used in sanitizing water supplies as they dissolve slowly to release available chlorine at a controlled rate.

Abstract: Disclosed are selected poly(oxyalkylated) 1,3,4-thiadiazoles of the formula: ##STR1## wherein each R is individually selected from hydrogen and methyl; and the sum of y and z is from 2 to about 30. These compounds are shown to be effective corrosion inhibitors in corrosive liquids such as acid metal-treating baths.