Abstract: A method of producing a laminate having high bond strength and excellent resistance to acid undercutting comprising oxidizing copper or its alloys to form an oxide film, applying a phosphoric acid solution to the oxide film, rinsing, drying, and adhesively laminating to a plastic film. The instant case also teaches a method of producing high tarnish resistance on copper and its alloys by so oxidizing and phosphating and further teaches a flexible printed circuit wherein the unwanted copper portion of the formed laminate is etched away, characterized by high peel strength and substantially no acid undercutting of the formed circuitry.

Abstract: A process is provided for preparing ortho substituted aryl fluorides from corresponding diazonium fluorides. More particularly, the invention relates to a method for thermally decomposing diazonium fluorides substituted in the ortho position with halogen or trihalomethyl to a corresponding aryl fluoride. The method involves heating the diazonium fluoride to a temperature above its decomposition temperature and above the temperature at which the resulting product distills by contacting the same with a heat exchange medium at a temperature in the range of 100.degree.-350.degree.C.

Abstract: Brazing preforms are disclosed which may take the form of wire, sheet or strip, and which are useful for joining copper, ferrous and nickel base alloys. The preforms of this invention are prepared from an alloy which contains manganese from 22 to 40%, iron from 0.1 to 2%, aluminum from 0.1 to 5%, zinc from 2 to 10%, balance essentially copper. A method of brazing is also disclosed which may be performed with or without a flux, and which is conducted in an inert atmosphere, at a temperature of from about 900.degree. to 1100.degree.C. The brazed products of this invention possess reduced brittleness and improved resistance to corrosion.

Abstract: A composite metal rotor tip seal for use in rotary internal combustion engines and a process for making a composite rotor tip seal. The composite seals are formed from at least two different metals or alloys having different frictional and wear characteristics whereby uniform wear and improved sealing are obtained. The seal is mounted so that different components of the composite contact the chamber wall during operation. A process for producing composite material, for the fabrication of composite seals, utilizing a pressure welding process is also described.

Abstract: 1. A composition of matter comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 percent by weight of an inorganic metal salt selected from the group consisting of metal chromates, metal bichromates, metal phosphates, and mixtures thereof.

Abstract: An improved process for oxidizing vat or sulfur dyes is provided wherein the reduced form of the dye is oxidized by contact with an aqueous oxidizing solution comprising an alkali metal or ammonium vanadate and an oxidant comprising an alkali metal or ammonium bromate or iodate.

Abstract: An apparatus for use in connection with vehicle safety systems of the type including an inflatable confinement which is inflated by the combined energy of a stored fluid under pressure and gas generated by the burning of a propellant. Two distinct propellant charges are provided which are sequentially ignited. The outlet from the reservoir storing the fluid under pressure is opened in response to the ignition of the first propellant charge. The sequential ignition of the propellant charges reduces the peak pressure in the reservoir.

Abstract: The instant invention comprises providing copper or a copper alloy which has on its surface a uniform glassy like and substantially pore free coating of copper phosphate, rinsing the coated material for at least 2 seconds in water at a pH of from 4.9 to 6.3, at a temperature of 90.degree.C to the boiling point and drying.

Abstract: A belt for holding a plurality of fasteners including a plurality of fastener receiving sleeves interconnected by webs. Each sleeve has a generally triangularly-shaped internal cross-sectional configuration. The corners of the internal triangle may be cut off to form flat surfaces. The fastener is engaged by the three sides of the triangle. The external surface of each adjacent sleeve has a planar portion positioned above and below the web which tapers away from said web. In addition, one end of each of the sleeves has a circular counter-bore therein and the other end has a groove therein extending parallel to the length of the belt. Each of the webs between adjacent sleeves has a V-shaped groove therein.

Abstract: A catalyst for the diminution of automobile pollution and a method for forming the catalyst are described. The catalyst comprises a metal alloy substrate having a specified composition, an oxide layer containing a large proportion of alumina on the surface of the alloy and a surface layer comprising from 60 to 100% platinum and from 0 to 40% palladium.

Abstract: Method of processing nickel-tin containing copper base alloys in order to obtain an improved combination of strength and bend properties. The alloys processed herein contain from 7 to 14% nickel and from 1.5 to 3.3% tin.

Abstract: An adjustable electrode for use in electrolytic cells is provided. The electrode comprises two electrode surfaces positioned in parallel and having a space between them. A rotatable element is attached to each of the electrode surfaces. Upon rotation of the element, the space between the electrode surfaces may be varied. Variation in the space between electrode surfaces is desirable when assembling the electrodes in the cell and in providing the optimum gap between electrodes of opposite charge.The adjustable electrode is employed in cells for providing chlorine and caustic soda or oxychlorine compounds by the electrolysis of alkali metal chloride solutions.

Abstract: A process for the production of methylene-bridged diaryl isocyanates by the reaction of .alpha.-halomethyl aromatic compounds with aromatic isocyanates in the presence of a catalyst. The catalyst comprises a metal salt of an aliphatic or cycloaliphatic organic acid where the metal is zinc, cadmium or mercury.Methylene-bridged diaryl isocyanates are suitably used in the production of polyurethane elastomers and foams.

Abstract: A process for improving the elongation of copper base alloys containing about 2 to 4.5% aluminum, 15 to 31% zinc, and a grain refining element such as iron, chromium, zirconium, or cobalt, is carried out through controlled grain coarsening. Such alloys are subjected to a cold reduction of about 15 to 40%, an intermediate anneal at about 625.degree. to 725.degree.C., a final cold reduction of 12 to 45% and a final anneal at about 600.degree. to 725.degree.C. Alternatively, the above sequence may be preceded by a preliminary cold reduction of about 10 to 70% and then a preliminary low temperature anneal at about 400.degree. to 600.degree.C. followed by the above reductions and anneals.

Abstract: The instant invention comprises providing copper or a copper alloy which has on its surface a uniform glassy like and substantially pore free coating of copper phosphate, rinsing the coated material for at least two seconds in water at a pH of from 4.9 to 6.3, at a temperature of 90.degree.C to the boiling point and drying.

Abstract: The instant invention comprises providing copper or a copper alloy which has on its surface a uniform glassy like and substantially pore free coating of copper phosphate, rinsing the coated material for at least two seconds in water at a pH of at least 8.0, at a temperature of 90.degree.C to the boiling point and drying.

Abstract: The instant invention comprises providing copper or a copper alloy which has on its surface a uniform glassy like and substantially pore free coating of copper phosphate, rinsing the coated material for at least two seconds in water at a pH of at least 8.0, at a temperature of 90.degree.C to the boiling point and drying.

Abstract: Improved properties are obtained in copper alloys containing from 7 to 14% nickel, from 1.5 to 3.3% tin, plus iron and/or cobalt in an amount from 0.1 to 3% each, by hot rolling, cold rolling, annealing and cold rolling, all under defined conditions. The resultant alloys are characterized by good strength, good bend properties, good solderability and low contact resistance.

Abstract: A propellant charge comprising a matrix of granular propellant having interspersed therethrough compacted molded bodies of propellant. The density of the granular propellant is less than the density of the molded propellant bodies. The use of the mixed propellant charge enables a cartridge case of given dimensions to be loaded with a greater weight of propellant thereby enabling the achievement of greater projectile velocities in any given gun-ammunition system.

Abstract: Aqueous monoammonium phosphate is reacted at elevated temperature with sodium carbonate in a vertical column having vapor-liquid contact means to produce an aqueous solution of sodium ammonium phosphate having a reduced carbon dioxide content. The sodium ammonium phosphate solution is treated in a second such column at elevated temperature and pressure to produce ammonia and an ammonia-free solution of alkali metal orthophosphate having a desired alkali metal to phosphorus molar ratio.