Abstract: A capacitor is disclosed of layers of metal foil alternating with insulating sheets impregnated with a dielectric fluid. The dielectric fluid comprises a mixture of 80 to 99% by weight mono-ethylated, mono-propylated, or mono-butylated biphenyl, biphenyl oxide, or biphenyl methane and about 1 to about 20% by weight di-ethylated, di-propylated, or di-butylated biphenyl, biphenyl oxide, or biphenyl methane.

Abstract: It has been discovered that refractories at their elevated use temperatures have electrical properties unique to semi-conductors. The electrical conductivity of refractories is changed by altering the defects in the metallic or nonmetallic ions of the refractory lattice, and the purity is controlled to prevent fluxing from occurring at the grain boundaries. The discovery makes possible either the increase or decrease in electrical conductivity of any semi-conducting refractory, since the theory is applicable to both materials wherein the defects occur in the metal ions of the refractory lattice and also to materials wherein the defects occur in the nonmetallic ions of the refractory lattice.

Abstract: A substrate carrier of electrically non-conductive material has a strip of resistance platinum applied thereto; in order to avoid the use of an intermediate temperature coefficient of expansion matching layer, the substrate carrier, for example of aluminum oxide, beryllium oxide, or a magnesium silicate, has less than thirty parts per million (ppm) Fe, less than 15 ppm Cr, less than 45 ppm Pb and less than 70 ppm Si in a form capable of reacting with platinum, the sum of the impurities by these metals, if all, or more than one are present, not exceeding 20 ppm; the average thermal coefficient of expansion of the substrate does not deviate from the mean thermal coefficient of expansion of the thermometer grade platinum by more than .+-. 30%; the platinum layer has a thickness of from 0.1 to 10 .mu.m, and is applied at a temperature in the range of between about 1000.degree. C to 1400.degree. C during 60 minutes in an atmosphere containing oxygen, for example free air.

Abstract: A foam fire extinguishing agent comprising (1) one or more alkyl acid phosphates and/or one or more salts thereof; (2) one or more amphoteric surface active agents; (3) one or more fluorocarbon-type surface active agents; and (4) an aqueous solution.

Abstract: A material is described which is useful in electrical current switching devices and is especially adapted to form the contact surface of the electrodes of electrical current switching devices which are employed in a vacuum environment. The contact material comprises a major component which is characterized by a melting point in excess of 1250.degree. C and a boiling point of less than 3500.degree. C. A small but effective amount of an element which provides antiwelding characteristics and in which said element has only minimum solubility within the major component. The balance is a minor constituent for providing a low resistance path for the electrical current to flow from one electrode to the other. Typical compositions includes a chromium matrix material which comprises in excess of 50% by weight of the contact material, up to about 1.5% of an antiwelding element for example bismuth and the balance essentially a high electrical and thermal conductivity element notably copper or silver.

Abstract: The separation of a sample of blood into serum and clot portions is accomplished by means of a sealant consisting essentially of a silicone fluid and silica dispersed therein. The separation is accomplished by inserting a supply of the sealant into a container holding a sample of the blood. The container and device are centrifuged so that it separates into serum and clot portions and the sealant, having a specific gravity of at least 1.026, separates the two portions.

Abstract: Process for enriching .sup.238 PuO.sub.2 with .sup.16 O and forming sintered fuel pellets therefrom comprising the steps of compressing a mass of .sup.238 PuO.sub.2 containing .sup.16 O, .sup.17 O and .sup.18 O into a pellet; exposing the pellet to an atmosphere of .sup.16 O and an inert carrier gas at an increasing temperature up to about 1400.degree. C with varied gas flow to obtain an exchange of .sup.17 O and .sup.18 O and the simultaneous sintering of the pellet; and cooling the sintered and exchanged pellet.

Abstract: Anisotropic polymer material which conducts electricity consists of a filler which conducts electricity and a polymer binder. Perchlorovinyl resin or a mixture of perchlorovinyl resin with phenylaminomethyl-methyldiethoxysilane can be used as the binder.

Abstract: Disclosed is a metal oxide varistor body and a method for manufacturing the same. Conventional manufacturing techniques through sintering are utilized on any metal oxide varistor formulation which includes bismuth oxide. Following sintering, the devices are heat treated at a temperature between 750.degree. C and 1200.degree. C for a time in excess of about 10 hours to cause the bismuth oxide to substantially completely convert to a body centered cubic phase. The presence of the body centered cubic bismuth oxide increases the alpha of the devices and substantially lowers the leakage current.

Abstract: Fresh fruits and vegetables are preserved by coating them with a waxy protective adhering film formed by spraying the fruits and vegetables with a volatile petroleum solvent solution of a waxy film-forming material and an alkyl aryl sulfonic acid solution of a fungicidal benzimidazole of the formulae ##STR1## wherein R.sub.1 is methyl, ethyl, isopropyl or sec-butyl;R.sub.2 is hydrogen, alkyl of 1 to 6 carbon atoms or alkenyl of 3 to 6 carbon atoms andR.sub.3 is alkyl of 1 to 12 carbon atoms; ##STR2## wherein R is a five-membered heterocyclic ring containing nitrogen and sulfur andR.sub.1 is hydrogen, lower alkyl of 1 to 5 carbon atoms or lower alkenyl of 3 to 6 carbon atoms and ##STR3## and allowing the solvent to evaporate. Excellent protection against fungi is attained by using benomyl or thiabendazole as the benzimidazole fungicide.

Abstract: A hydroextracting composition for use with wet and finely pulverized ores comprising (A) a nonionic compound having a polyoxyalkylene group in the molecule and a cloud point of not more than 35.degree. C and (B) an anionic compound having a hydrophobic polyoxyalkylene group in the molecule.