Abstract: The invention provides a coating composition comprising an oil, a flavor, a color, an emulsifier, and an antioxidant. The coating composition can be used to prepare a food product that simulates a food product that has been deep fried.

Abstract: An improved process for the preparation of certain fluorinated aromatic diamines is disclosed. The step-wise addition of an alkali metal hydroxide to the starting material produces increased yields of higher purity diamine product.

Abstract: The flow of alternating current electrical power between electrode(s) and ground electrode(s) in contact with a working fluid is utilized in separating materials within the working fluid and to agitate the working fluid and separate contaminants within the fluid. The systems can be tubular or box-like and are controlled through sensors and a computer. The working fluids can be mineral ores, industrial wastes, contaminated earth, etc.

Abstract: Copolyimides and their precursors are disclosed comprising units having aromatic sulfone and aromatic fluoroaliphatic groups. These copolymers are represented by the formula ##STR1## wherein Ar' and Ar" are the same or different and are ##STR2## where Z is a chemical bond, ##STR3## Ar is the tetravalent residue of a tetracarboxylic acid or acid dianhydride or di- or tetraester thereof where the ratio of x to y is from about 1:99 to about 49:51.These copolymers have improved processing temperatures and can be readily formed into sheets. They may also be used in applications such as hot-melt adhesives or prepregging.

Abstract: An additive composition of boronated phenolic antioxidant and anti-haze diol capable of complexing with boric acid as well as organic material protected by the additive composition. A hydrolytically stable additive composition comprising a boronated phenolic antioxidant and a diol member capable of reacting with boric acid formed as a hydrolysis product to form a stable ring structure soluble in a substrate. The additive composition prevents or cures a haze caused by hydrolysis.

Abstract: A polyimide precursor suitable for use in the pseudo hot-melt prepregging process is described. It consists essentially of a mixture of (a) about 40 to about 70 percent by weight of a substantially equimolar mixture of (i) 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane or 2,2-bis[4-(3-aminophenoxy)phenyl]hexafluoropropane, or both, and (ii) lower alkyl diester of aromatic tetracarboxylic acid; (b) about 2 to about 50 percent by weight of polyamide (polyamic acid or ester) producible from components (i) and (ii); and (c) about 10 to about 50 percent by weight of solvent with the proviso that the mixture is a clear resinous solid at 25.degree. C. and is a viscous, tacky, varnish-like liquid at a temperature falling in the range of 40.degree. C. to 100.degree. C. Also described are use of the polyimide precursors in preparing coated paper webs useful in preparing paper-backed prepregging tape, and use of the coated paper webs in preparing the paper-backed prepregging tapes.

Abstract: Prepreg precursors and other normally non-flowable resinous semi-solid or viscous liquid polyimide precursor compositions often need to be transformed into free-flowable liquids without dilution and without causing changes in their chemical composition. Such compositions are composed of (a) a diester of an aromatic tetracarboxylic acid, (b) an aromatic diamine, (c) a polyamic acid producible from (i) an aromatic diamine and (ii) a dianhydride of an aromatic tetracarboxylic acid, and (d) an inert solvent in an amount insufficient to provide a flowable liquid at room temperature. Such compositions readily undergo chemical change (amidization and imidization) when subjected to heating in a conventional oven because of local overheating, and poor heat transfer within the body of the composition.

Abstract: An asphaltic composition of enhanced utility for vehicular pavement is described. It comprises a road paving grade of asphalt in admixture with a small amount of an alkylene dithiocarbamate such as methylene bis(dibutyldithiocarbamate) characterized by having a reduced increase in absolute viscosity to original absolute viscosity after thin film aging as measured by ASTM Test D 1754 at 140.degree. F. Such compositions exhibit enhanced resistance to oxidative degradation of the type normally experienced by road paving grades of asphalt.

Abstract: A slit fin heat exchanger is formed by wrapping slit fin tubing around a pair of mandrels having expanded metal cylinders thereon into a flat coil having two spaced rows of tubing. The flat coil containing the expanded metal cylinders is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same plane. The mandrels are rotated about their axes in opposite directions which shifts the plane in which the coil is located. The shifting of the plane of the coil moves a portion of a first row of the coil into contact with a planar portion of a platen and the second row of the coil into a nesting relationship with the portion of the first row which is in contact with the planar portion of the platen. Continued rotation of the mandrels causes folding of the portions of the coil which extends the area of nesting. The folding takes place through up to 120.degree.

Abstract: A slit fin heat exchanger is formed by wrapping slit fin tubing around a pair of mandrels having expanded metal cylinders thereon into a flat coil having two spaced rows of tubing. The flat coil containing the expanded metal cylinders is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same plane. The mandrels are rotated about their axes in opposite directions which shifts the plane in which the coil is located. The shifting of the plane of the coil moves a portion of a first row of the coil into contact with a planar portion of a platen and the second row of the coil into a nesting relationship with the portion of the first row which is in contact with the planar portion of the platen. Continued rotation of the mandrels causes folding of the portions of the coil which extends the area of nesting. The folding takes place through up to 120.degree.

Abstract: Organic material such as lubricating oil is stabilized against gradual oxidative degradation by the addition of aromatic diamines such as 3,5-diethyltoluene-2,4-diamine, 3,5-diethyltoluene-2,6-diamine, mixtures thereof, and the like.

Abstract: A method and apparatus for expanding a tubular workpiece which includes mounting the workpiece in a lower die, filling the workpiece with fluid and engaging the upper portion of the workpiece with an upper die. The upper die is moved downwardly acting to physically compress the workpiece. The dies are additionally configured to form an internal pressure cavity such that further downward displacement of the upper die creates an internal pressure forcing the workpiece outwardly into the desired end configuration.

Abstract: Apparatus for use in a heat exchange unit having wound fin tubing includes a tube support having a vertical portion and multiple lateral portions, each lateral portion having an opening therein. A support tube is inserted through the openings in the lateral portions of the tube support such that runs of wound fin tubing are secured between the tube support and the support tube. A run support portion of the tube support may additionally define notches for securing the various runs of wound fin tubing. Pins or other means for securing the tubular support means are inserted into the ends of the tubular support such that the support tube is affixed to the tube support assembly. The pins are secured to either the base pan or the structural assembly of the unit providing a tube support assembly as an integral part of the heat exchange unit.

Abstract: Diaryl ethers such as 3-phenoxytoluene are made by heating an aromatic hydroxy compound or mixture of such compounds with aluminum or an aluminum phenoxide forming compound such as aluminum trialkyl.

Abstract: Apparatus for encasing a heat exchange unit. A wrapper is disclosed having solid portions for structural support of the heat exchange unit and fastening means including closure means formed on each end of the wrapper and a fastener strip which co-acts with said closure means to secure the wrapper in its appropriate position. Louver portions and solid portions of the wrapper are additionally disclosed to provide a structurally sound wrapper having spaced louver openings to allow air flow therethrough.

Abstract: Method of manufacturing a heat exchanger element with a plurality of helically wound coils. The tubes are wrapped about a forming drum in a parallel abutting relation to each other to form a plurality of helically wound coils. Terminal leads are provided at each end of the coil. Terminal leads at each end of the coils are bent, disposed one inwardly the other so that they are positioned tangent to the same plane, which is perpendicular to the center longitudinal axis of the coils, and then a portion of each terminal lead is cut off and joined to a header.

Abstract: An accumulator for use in a refrigerant circuit having a tube in which are formed inlet and discharge openings and a cylindrical shell which is deformed by metal spinning against the exterior surface of the tube to form a container which serves as the accumulator. A diverter is provided between the discharge opening and the inlet opening to prevent direct flow through the tube bypassing the container. A method of manufacture of the accumulator by metal spinning is also disclosed.

Abstract: A self-aligning and end fixity connector for connecting a hydraulic cylinder piston rod to its respective section in a multi-section telescopic boom assembly wherein a pair of rectangular plates are secured to the free end of the piston rod, the plates being received in retainers secured to the boom section to thereby prevent the piston rod from rotating and thus providing end fixity to the rod. A clearance is provided between the plates and the retainers to allow a slight floating action of the rod in a vertical plane so that the rod connection point is substantially in alignment with the cylinder connection point to allow full retraction without binding of the boom sections.

Abstract: Apparatus for venting a plate fin coil during the ultrasonic soldering of aluminum return bend tubes to the heat exchange tubes in the coil. The apparatus includes a process snorkel member comprising a bored plug for telescoping inside an extension tube extending from an open end of a heat exchange tube forming an end of a circuit in the coil, and a venting tube defining an air conduit from the plug to the atmosphere, whereby the pressure in the interior of the plate fin coil assembly is relieved when the fin coil is immersed in the solder bath.

Abstract: Dialkylphosphites are made by adding PCl.sub.3 to a mixture of water and alkanol and distilling product from the resultant reaction mixture leaving a distillation residue. Alkanol is added to the residue and the mixture reacted at elevated temperature to yield additional dialkylphosphite.