Abstract: Novel glassy metal alloys and the brazing of metal parts employing a homogeneous ductile filler metal foil of these alloys is disclosed. The glassy metal alloys have a composition consisting essentially of 5 to 40 atom percent nickel, 15 to 20 atom percent phosphorus with the balance being copper and incidental impurities. These alloys can be produced in the form of foil useful for brazing metal articles, particularly articles composed of copper and copper alloys.

Abstract: An anhydride of a carboxybenzene is esterified in solution by a fluorinated alcohol, using an aliphatic ester having a boiling point between about 50.degree. C. and about 150.degree. C. as solvent. In particular, pyromellitic dianhydride is esterified in an ester such as ethyl acetate or butyl acetate to the diester/diacid by reaction with 2-(n-perfluoroalkyl)ethanols having six to twelve carbon atoms in the perfluoroalkyl groups, and the reaction mixture containing the dissolved diester/diacid is admixed with an oxirane compound of the group ethylene oxide, epichlorohydrin and glycidol whereby the carboxyl groups are esterified in the solvent by reaction with oxirane groups. The product is recovered by evaporating off the solvent and unreacted oxirane compound. The product imparts oil and/or water repellency to textiles.

Abstract: 1-chloro-2,2,2-trifluoroethane (refrigerant 133a) is dissolved in a furan-derivative absorbent, and especially an ether of tetrahydrofurfuryl alcohol, to form an absorption refrigerant pair composition. It exhibits a good combination of performance, capacity, stability, low toxicity and convenient operating pressures. These compositions are useful in methods of absorption refrigeration, cooling and heating and especially in an absorption heat pump.

Abstract: A low shrinkage, dimensionally stable, polyester industrial fiber is produced by a process which involves conditions of continuously spinning and drawing filaments wherein the filaments are passed through a steam impinging draw point localizing jet (25) at a temperature of about 460.degree. C. to 580.degree. C. to thereby heat the filaments substantially immediately above their second order transition temperature. The low shrinkage polyester fibers are particularly useful in the preparation of industrial products, including industrial belts, conveyor belts, and reinforced elastomeric structures.

Abstract: An amorphous metal alloy which is at least 90% amorphous having enhanced magnetic properties and consisting essentially of a composition having the formula Fe.sub.a B.sub.b Si.sub.c C.sub.d wherein "a", "b", "c" and "d" are atomic percentages ranging from about 80.0 to 82.0, 12.5 to 14.5, 2.5 to 5.0 and 1.5 to 2.5, respectively, with the proviso that the sum of "a", "b", "c" and "d" equals 100.

Abstract: A spinnerette (60, 70, 80) is provided for use in a process in which one or more ends of individual filaments are extruded from a plurality of orifices (61, 71, 81) of the spinnerette (60, 70, 80). The orifices of each end are arranged in a pattern which bounds a predetermined area of the spinnerette. The pattern consists of at least 5 substantially parallel rows, the orifices being equispaced within a given row for substantially all of the rows. The perpendicular distance between rows going from one side of the pattern to the other on an average progressively increases per row by a percentage, preferably about 1 to 10 percent, of the orifice spacing on the row closest to a line parallel to the rows and bisecting the pattern.

Abstract: An electrical control system for an absorption heat pump capable of conditioning a space by cooling or heating including:(a) a unit activation component 64a having an on and off position responsive to temperature in the space to be conditioned;(b) a mode selection switch 64e having a heating mode position and a cooling mode position;(c) safety switches 64c for sensing hazardous operating conditions;(d) a timer device 60 which is activated by the unit activation component 64a and the safety switches 64c and which, after a predetermined period of activation, turns an output 64 to an on position;(e) a first control circuit 68 for operating the outside fan 15a when the unit activation component 64a is in the on position;(f) a second control circuit 69 for operating the solution pump 30 when the timer output 64 is in the on position;(g) a third control circuit 70 for operating the second or chilled coolant pump 12p when the timer output 64 is in the on position;(h) a fourth control circuit 71 and 71' for moving a

Abstract: An ignition enhancer coating composition for pyrotechnic propellants comprised of about 60 to 95 wt. % of an inorganic oxidizer; about 5 to 20 wt. % of an oxygen-containing polymeric compound; about 0 to 10 wt. % polyethylene; about 0 to 10 wt. % of a transition-metal oxide; and about 0 to 5 wt. % carbon black. This invention also relates to a pyrotechnic propellant coated with said ignition enhancer composition.

Abstract: The process for preparing hexafluoroisobutylene which comprises reacting, at elevated temperatures, ketene or a ketene-generating compound with hexafluorothioacetone. Hexafluoroisobutylene is a known valuable monomer, which forms polymers of exceptional thermal, chemical and mechanical properties, particularly when copolymerized, such as with vinylidene fluoride.

Abstract: An ignition enhancer coating composition for alkali metal azide pyrotechnic propellant compositions comprised of about 2 to 15 weight percent of an oxygen-containing polymeric compound; about 20 to 50 weight percent of an alkali metal azide; and about 40 to 80 weight percent of an inorganic oxidizer. This invention also relates to a pyrotechnic propellant coated with said ignition enhancer composition.

Abstract: A method for producing alkali metal chromates by a single roast of chrome ores without the use of calcium oxide is disclosed. A double roast embodiment is also contemplated for obtainment of enhanced yields. The pollution and hygiene problems associated with the use of lime are substantially eliminated and only negligible amounts of alumina are found in the product chromate liquors without employing steps previously thought necessary. These advantages are achieved by controlling (1) the Bichromate Equivalent: aluminum oxide ratio in the mix, (2) the amount of alkali metal salts added to the mix, (3) the roasting time, (4) the composition and alkalinity of the liquor used for leaching the roast, and (5) the temperature employed. Recovery of vanadium values from the alkali metal chromate liquors is also disclosed.

Abstract: Stripping solutions, free from phenol compounds, comprising at least 30 weight percent of an unsubstituted or alkyl substituted aryl sulfonic acid have been found effective for removal of organic polymeric substances from inorganic substrates. The novel compositions comprise 30-80 percent of one or more of the sulfonic acids in admixture with chlorinated aryl compounds, alkylaryl compounds having 1-14 alkyl carbons, an isoparaffinic hydrocarbon, or mixtures thereof.

Abstract: Certain polyacetylenes exhibit reversible color changes at transition temperatures in the range -180.degree. to 220.degree. C., wherein the thermochromic cycles can be repeated many times with no apparent degradation and little change in spectroscopic properties.These thermochromic polyacetylenes are useful in temperature-indicator and indicia-display device applications.A process for laser-beam recording of images is described employing a thermochromic polyacetylene, in which the hysteresis properties of the polyacetylene can be suitably altered allowing for selectively storing or erasing the formed image.

Abstract: This invention describes novel cyclic ketals of .alpha.-oximinoketones and methods for the preparation of these compounds.

Abstract: Reinforced thermoplastic polymer composite sheets, formable into smooth, shaped objects in a stamping process. The composite sheet is produced by laminating together (1) a first layer of thermoplastic resin containing short glass fibers and a mineral filler such as kaolin, (2) a backing reinforcing layer comprising a long glass mat impregnated by thermoplastic resin and (3) optionally a third layer similar to said first layer. The long glass mat is positioned within the reinforcing layer during impregnation, whereby the mat becomes encased in a resin matrix.

Abstract: Method and apparatus is provided for the inline string-up, in automatic fashion, of a rapidly advancing filament, particularly a glassy alloy strip, from a high speed continuous casting operation onto a rotating winding wheel. The leading segment of the advancing filament is passed into the nip of two counterrotating brush rollers 15 having a peripheral velocity exceeding that of the advancing filament to produce a sliding frictional tensioning of the filament. The brush rollers and engaged filament are then moved over the rotating winding wheel 28 to lay a segment of the advancing filament onto the rotating winding surface. A cut-and-grip device 8 associated with the winder is then actuated to cut the filament at the winding surface and to secure the filament onto the winder, whereupon winding of the advancing filament proceeds.

Abstract: Alkyl cyclohexa-1,3-dienes are aromatized with sulfur dioxide and oxygen. Cyclohexa-1,4-dienes are aromatized with sulfur dioxide. Conjugated dienic hydrocarbons, including alkyl cyclohexa-1,3-dienes, are converted to beta-olefinic peroxides by sulfur dioxide and oxygen. The aromatization reactions are useful as part of the synthesis of selected aromatics from acyclic olefins. The beta-olefinic peroxides are useful intermediates in the production of 1,4-diols.

Abstract: A process is disclosed for preparation of an amorphous polyaluminum sulfate composition of the formulaAl(OH).sub.x (SO.sub.4).sub.y (H.sub.2 PO.sub.4).sub.z (H.sub.2 O).sub.wwhereinx is about 0.75 to 1.5y is about 0.7 to 1.07z is about 0 to 0.2w is about 2.0 to 4.2with the proviso that the sum x+2y+z is 3. Water is withdrawn from a fairly fresh polyaluminum sulfate solution having the formulaAl(OH).sub.x' (SO.sub.4).sub.y' (H.sub.2 PO.sub.4).sub.z' (H.sub.2 O).sub.w'whereinx' is about 0.75 to 1.5y' is about 0.7 to 1.07z' is about 0 to 0.2w' is about 18 to 65with the proviso that the sum x'+2y'+z' is 3. The amorphous composition is useful for reconstitution with water to prepare a coagulant solution.

Abstract: A composition is described comprising at least two co-crystallized acetylenic compounds, of different chemical structures, each containing at least one --C.tbd.C-C.tbd.C-- group and substituents selected from the group consisting of sulfonate, urethane and alcohol radicals, at least one of the compounds capable of undergoing a contrasting color change upon exposure to actinic radiation or thermal annealing, wherein the composition exhibits a substantially different thermogram than the sum of thermograms of the individual components as obtained by differential scanning calorimetry.A device is also described useful for measuring the time-temperature or radiation-dosage history of an article comprising a substrate having deposited thereon the described composition.A process is also described for producing the composition of this invention.

Abstract: An electrodialytic process for the conversion of soda sources containing anionic and optionally nonionic impurities to high purity, high strength sodium hydroxide and carbon dioxide gas is disclosed.