Abstract: A novel material is disclosed that is useful for the manufacture of durable metal articles which have differently colored surface zones.

Abstract: A method of and apparatus for applying a synthetic resin coating of predetermined thickness to various articles of different sizes and shapes from a relatively rapidly deteriorating solution of the resin in which an intermittently driven conveyor housed in a controlled atmosphere and suspending different article groups of like articles at spaced locations along the conveyor successively moves the articles from a loading station first to a cleaning station at which the articles are subjected to the action of an ultrasonic cleaner, then to a destaticizing station, then to a coating station at which a dip tank is rapidly raised to immerse the articles in the solution and is lowered at a controlled rate to provide a coating of the required thickness in a single operation, and finally through a precuring zone in which the coating dries tack-free to the loading station at which the coated precured articles can be removed.

Abstract: A process for the preparation of a carbon-metal composite material for mechanical sliding members, comprising impregnating a carbon substrate with an alloy comprising copper, nickel or a copper-nickel as a base metal and at least one of titanium, zirconium and silicon as a wetting agent for the carbon. In one embodiment, the alloy further comprises at least one of a third component such as tin, antimony, zinc, manganese, iron, chromium, lead, magnesium and phosphorus.

Abstract: Combination of ethylenediaminetetraacetic acid and nitrilotriacetic acid or water soluble salts thereof for the removal and prevention of scale in steam generators.

Abstract: A process is disclosed for producing a thin film of elemental germanium on the surface of a germanate glass composition by means of a focused laser.

Abstract: A pressure sensitive recording sheet adapted for imaging under the pressure of a typewriter key or other writing instrument. The sheet comprises a ply of high surface area polyolefin fibers masking a colored medium therein. The ply of polyolefin fibers when subjected to the localized pressure of a writing instrument becomes relatively transparent in the region where the pressure is applied, to make distinct the colored medium distributed in the recording sheet.

Abstract: Large steel products such as structural sections, castings, forgings and machined sections are coated with a smooth, adherent, bright metallic coating comprised of 25 to 85% aluminum, silicon in an amount of 0.7% or more by weight of the amount of aluminum and the balance substantially zinc without the occurrence of detrimental exothermic reactions of the coating medium with the base metal.

Abstract: A surface-active composition consisting essentially of (a) a compound having the structure: ##EQU1## wherein R is a member of the group consisting of C.sub.2 H.sub.4 and C.sub.3 H.sub.6 and X is a member of the group consisting of OH and NH.sub.2, and (b) another surface-active agent selected from the group consisting of anionic, cationic and non-ionic surface active agents.

Abstract: A solar control film, for application to window glass by the consumer with minimum or no preparation, comprises a vapor deposited aluminum coat, which partially transmits light, interposed between a vinyl stratum and a polyester stratum, either of which contains an ultraviolet inhibitor and each of which is self supporting. This film is adhered by pressing the surface of its vinyl stratum against the window glass in either dry or wet condition.

Abstract: An ion exchanger consisting of crushed lignite or brown coal retaining alkali ions, which is obtained by immersing the particles in a dilute caustic alkali solution. The concentration of the caustic alkali ranges from 2 to 20 weight percent, preferably from 3 to 10 weight percent. Following the treatment with the alkali, the system is washed with an acid with a pH of 3 to 7 to remove the alkali liquid. The resultant lignite has less than 4 meq/g, for instance 2.60 to 3.50 meq/g, of sodium ions and exhibits abilities of ion exchange. By treating the alkali treated lignite with hydrochloric acid or sulfuric acid it is possible to retain hydrogen ions, and by using a solution of a calcium salt such as calcium chloride calcium ions can be retained. Thus, calcium ions or potassium ions may be exchanged with cations of a salt of metal of Group second in the periodic table such as calcium, magnesium, barium and zinc.

Abstract: Cemented refractory metal carbides are coated with cobalt to a predetermined thickness by immersing a cemented refractory metal carbide in an aqueous slurry consisting essentially of a cobalt source, a hydrazine compound and a buffering agent to provide a pH greater than 7 and maintaining the temperature of the slurry at from about 65.degree. to 90.degree.C for a sufficient time to achieve the desired thickness of cobalt coating on the external surfaces of the cemented refractory metal carbide.

Abstract: Leaks in closed cooling systems containing an aqueous medium as the coolant, are sealed by electroless deposition of a metal or metal containing compound from a water soluble, easily reducible metal compound. A complexing agent may be added to the coolant to assist in solubilizing the easily reducible metal compound. In one embodiment, the reducible metal compound is formed in situ by attacking the conduit walls of the cooling system so as to form solubilized compounds, or compounds which can be solubilized by addition of suitable complexing agents.

Abstract: This invention relates to a decorative plastic laminate preferably one having a high wear resistant decorative surface in which the various layers have controlled wear indices so as to provide the laminate with improved uniform machineable properties.

Abstract: A glass body having a fluorescent pattern inwardly of a surface thereof is formed by depositing a first material in a predetermined pattern on a surface of glass containing readily ion-exchangeable first ions, the first material containing second ions capable of ion-exchange with the first ions, one of the glass and the first material containing ions for providing a fluorescence center, and by causing the second ions to penetrate into the glass through ion-exchange with the first ions so that the fluorescence-center providing ions may be distributed in a pattern which is in positive or negative relationship with the predetermined pattern.

Abstract: Steel ligatures are provided having coated thereon a thin film of a resin composition containing zinc particles. The resin composition comprises a mixture of an epoxy resin and a phenolic resin, and the coating may be cured, or substantially uncured, as desired.

Abstract: Aluminum or an aluminum alloy is plated on a metallic substrate from a bath of molten aluminum or aluminum alloy containing 0.005 to 1.0% (preferably 0.01 to 0.5%) strontium and/or 0.01 to 5.0% antimony. The metal substrate is preferably iron, steel, or a noniron metal such as copper, titanium, nickel, cobalt, chromium, tantalum, tungsten, vanadium or zirconium. The bath may also contain 1.0 to 15.0% by weight silicon and 0.005 to 1.0% beryllium.

Abstract: In wet process hot dip galvanising use is made of a flux which melts at below 500.degree.C and consists of 30 - 70% by weight magnesium chloride and 20 - 70% by weight sodium chloride and/or potassium chloride.

Abstract: This invention is addressed to a process for the diffusion coating of metals which are capable of forming a compound or a solid solution with boron by contacting the metal with boron at a temperature greater than 1350.degree.F.

Abstract: A new retroreflective sheet material is taught that comprises a light-transmissive retroreflective open web of filaments that are individually encased by a monolayer of minute retroreflective microspheres, the web being ensheathed within an envelope that comprises two overlaid sheets joined together around the edge of the envelope, at least one of the sheets being transparent.

Abstract: Objectionable ripple formation in continuous hot-dip coating is avoided by using a single set of blowing nozzles and directing the gas streams downwardly against the strip at an angle between the strip and the center line of the gas stream of from about 0.degree. to about 45.degree., preferably from about 20.degree. to about 40.degree.. The technique is particularly useful at low line speeds of 150 feet per minute or less, especially at high coating weights of 1.5 ounces per square foot or more.