Abstract: Calcium or other sulfonate gel in an oil carrier (such as that of U.S. Pat. No. 4,629,753 to Quinn), optionally mixed with a small amount of sodium sulfonate and tall oil fatty acids, can be neutralized with amine, e.g. DMEA, to form a soap which can be dispersed in water. Adding an acrylic emulsion results in an acrylic coating rich in corrosion-retarding alkali metal or alkaline earth metal sulfonates. This finish on metalurgically roughened, e.g. nitrocarburized, metal forms a firm film which can resist greater than 500 hours ASTM B117 salt spray.

Abstract: Plugging of fuel injectors for internal combustion engines is reduced by depressurizing the fuel pressure line which feeds the injectors, promptly after shutoff of ignition. Reduction of deposits assists in maintaining drivability and fuel economy.

Abstract: There is disclosed a portable apparatus and process for using same including a test conduit assembly and related conduit valve and fluid flow assemblies for conecting to a process unit for fluid flow communication with the test conduit assembly for passing a fluid to be evaluated for corrosive effect on such test conduit assembly wherein the test conduit assembly includes a test conduit of a predetermined length disposed in a transparent conduit section for passing the fluid therethrough and wherein a heating unit of a predetermined length is disposed in the test conduit wherein the heating unit is of a length of at least about 2 inches and comprises less than about 50 percent of the predetermined length of the test conduit.

Abstract: A process and system for recovering refrigerant from refrigeration systems without substantial contamination of the atmosphere. The system includes devices for removing refrigerant from the system under the vapor pressure of the refrigerant or with aid from a pump, a conduit for conveying the refrigerant from the system, and a collapsible bag constructed of a flexible material substantially impermeable to refrigerant and to air, having at least one inlet for introducing refrigerant to be salvaged and sealing means for sealing the inlet on the bag. After filling, the bags may be transported to a recovery system for recovering refrigerant from the bag so that the refrigerant may be purified and recovered for reuse.

Abstract: A vented cup ballistic separation device and method of use for achieving rapid separation of a suspension of fluidized solid particulate and gasiform material. The vented cup ballistic separation apparatus is useful in a wide variety of vapor-solid contacting devices where rapid separation of solids from vapor is desired e.g. in fluidized catalytic cracking systems. The vented cup ballistic separation apparatus particularly comprises annular chamber about the outer periphery of an open ended riser conduit. The annular chamber is open in the upper end and one or more open end conduits extend outwardly from the annular chamber to provide means for discharging vapors and also for attachment of cyclone separation means if desired. The riser with vented cup or annular chamber preferably terminates within a larger diameter chamber.

Abstract: During use in hydrocarbon conversion processes, sorbents, e.g. for carbon and metals, and catalysts become contaminated with metals, e.g. heavy metals such as vanadium, nickel and sodium. Leaching of heavy metals can be sharply reduced by treatment of such spent particulate materials with alkaline earth metal compound, e.g. lime, calcium fluoride, calcium sulfate, and barium chloride. Surprisingly, calcium chloride, calcium carbonate, sodium bicarbonate are relatively ineffective.

Abstract: Self-healing coatings are formed by first phosphating or nitriding ferrous parts, then coating with an emulsion of e.g. polysiloxane, oil, sorbitan derivative and sodium sulfonate, butyl cellosolve, oleic acid. Preferred phosphating is to a thickness of 2,000-3,000 mg Zn phosphate/square foot. This coating passes 240-plus hours in 5% salt spray (ASTM B-117) and resists wash off with car wash soap.

Abstract: A magnetic recording medium is disclosed which comprises a non-magnetic support and a magnetic coating layer formed thereon, the magnetic coating layer being formed by applying a magnetic coating composition comprising a resinous binder and magnetic particles dispersed therein, wherein the coating composition contains, as a resinous binder, a modified polyurethane resin obtained by reacting a polyurethane resin (A) with a bicyclic amide acetal (B), the polyurethane resin (A) having carboxyl groups in an amount of 50 to 2,000 equivalents/10.sup.6 g and the equivalent ratio of the bicyclic amide acetal (B) to the carboxyl groups of the polyurethane resin (A) being within the range of 0.5 to 2.0.

Abstract: A process and apparatus for automatically monitoring or adjusting, or both, the concentration of total reducers (i.e. reduced sulfur-containing constituents which consume iodine) in an aqueous medium (e.g. waste water stream) whereby the time period for iodine titration of an untreated sample of the aqueous medium is automatically measured and this time measurement is automatically translated into an output signal to either a monitoring means or a process adjustment means (e.g. oxidant chemical feed pump) or both.

Abstract: A curative for a two part structural primerless urethane adhesive for fiberglass reinforced polyester substrates curable at 240.degree. F. (116.degree. C.).

Abstract: The invention relates to a process for filling space in a structure with a polyurethane composite in the presence of water which comprises adding a coarse aggregate and certain polyurethane binders to the space of the structure to be filled. The process is particularly useful for filling space in roads, runways, and other structures made of asphalt, concrete, or similar building materials.

Abstract: Water reducible coating compositions comprising: an oxidized slack wax, paraffin wax or petrolatum; a low molecular weight polyethylene, polybutene, or polypropylene; naphthenic or paraffinic oil; a salt of a sulfonic acid, a nitrate, a nitrite, a borate or an amine soap of a fatty acid; a mixture of mineral spirits and ethylene glycol monopropyl ether; an unsaturated fatty acid (preferably oleic acid) and a fugitive amine (preferably 2-amino-2-methyl-1-propanol); and water are disclosed which provides improved corrosion resistant coatings for ferrous alloys.

Abstract: This invention relates to a no-bake process for preparing foundry shapes which utilizes polyurethane-forming binders containing selected polyester polyols. The resulting foundry shapes are particularly useful in preparing castings from low melting metals.

Abstract: Self-healing coatings are formed by first phosphating or nitriding ferrous parts, then coating with an emulsion of e.g. polysiloxane, oil, sorbitan derivative and sodium sulfonate, butyl cellosolve, oleic acid. Preferred phosphating is to a thickness of 2,000-3,000 mg Zn phosphate/square foot. This coating passes 240-plus hours in 5% salt spray (ASTM B-117) and resists wash off with car wash soap.

Abstract: The subject invention relates to foundry binder systems, which are cured with gaseous sulfur dioxide, comprising as separate components:1. a blend of an acrylated epoxy resin and a monoester solvent and;2. an organic solvent; and a blend of an epoxy resin and an aromatic hydrocarbon solvent which is part of component (a), (b), or both.The invention also relates to the use of the foundry binder systems to prepare foundry mixes, foundry shapes, and metal articles.

Abstract: The near infrared absorbance of the methyne band measures octane (pump, RON, and MON) with excellent correlation and can be used for gasoline blending. The absorbance may be measured as the first, second, third, fourth or higher derivative or by other signal processing techniques. The signal can be used to control a multi-component gasoline blending system to produce a preset desired octane. Such continuous or frequent measurement of octane (research octane number, RON; motor octane number, MON; and pump octane number (research plus motor times 0.5)) permits constant or frequent optimization of gasoline blending to produce a target octane which is sufficient to meet motorists' needs, yet uses minimum amounts of the more expensive high octane blending stocks.

Abstract: There is disclosed an apparatus for forming hydrophilic polymeric solutions wherein a vessel is provided with a mixing assembly comprised of co-axially and vertically-disposed inner and outer cylindrically-shaped wall members mounted to a bottom wall member wherein the inner wall member defines a mixing chamber and is provided with orifices about a lower portion thereof to provide fluid communication to a solution chamber defined between the wall members and wherein an upper portion of the outer wall member defines a weir to the vessel and wherein an agitator is positioned within the mixing chamber to admixed feed hydrophilic polymer and solvent in a vortex of polymeric solution contained in the mixing chamber and to cause the polymeric solution to overflow the weir into the vessel.