Abstract: A process for improving nozzles extending substantially vertically through openings in the head of a nuclear reactor and which are circumferentially welded to the head through a weld lying on an inner surface of the head and on the adjacent outer surface of the nozzle which comprises forming a coaxial, circumferential groove upwardly into at least a portion of the nozzle extending into the reactor and then filling the coaxial, circumferential groove with a weld material. The nuclear reactor head is also claimed.

Abstract: Apparatus suitable for annealing the interior walls of a nuclear reactor which comprises a nuclear reactor shell, a cap securely attached to the nuclear reactor shell, wherein the cap has an inlet line for the introduction of a hot gas under high pressure and an outlet line for removing low pressure gas from the interior of the apparatus, means, such as a cylindrical shell, that helps define an annular space adjacent to the vertical walls of the reactor through which gas can flow and means for directing low pressure gas to the outlet line.

Abstract: Aziridine compounds having the following structural formula: ##STR1## wherein R.sub.1 represents an alkylidene group;R.sub.2 represents hydrogen or an alkyl radical;R.sub.3 represents an aromatic hydrocarbon moiety;R.sub.4 represents an alkyl radical;R.sub.5 represents an alkylene radical;R.sub.6 represents hydrogen, an alkyl radical, phenyl or combinations thereof; andX represents oxygen, --S--, NH--, or NR--, wherein R represents an alkyl or phenyl are disclosed. Acrylic polymers containing moieties of at least two such aziridine compounds depending therefrom are also disclosed. The acrylic polymers are relatively non-toxic and have negligible inhalation irritation and are useful in the formulation of coating compositions which harden or cure at low temperatures.

Abstract: A radiation shield for visual display terminals capable of being mounted in front of a visual display terminal for attenuating electromagnetic fields emanating from such visual display terminal which comprises a sheet of glass carrying on at least one face a layer of conductive metal that does not appreciably impair visibility through the coated glass and metal grounding member ultrasonically bonded to the glass sheet solely at one location adjacent to a corner of the glass sheet.

Abstract: A novel ignition promoter; a process for preparing the ignition promoter which comprises removing cellulose from biomass, such as wood, bagasse, corncobs, straw, hay, or newspaper, and thereafter nitrating the remainder after treatment with an oxirane; and a fuel suitable for use in an internal combustion engine, such as a Diesel engine, containing an alcohol, such as methanol or ethanol, and said ignition promoter. Cellulose can be removed from the biomass by treating it with an aqueous nitric acid solution. The material remaining after cellulose removal can be nitrated using an aqueous solution of nitric acid. Nitration is carried out by reacting the material after cellulose removal with an oxirane, such as ethylene oxide, and thereafter nitrating the resulting product using aqueous nitric acid in combination with a dehydrating agent, such as sulfuric acid.

Abstract: A novel one-piece louver having a flat or substantially arcuate cross-section defining thereof first and second longitudinal edges, there being no other structure depending from the first and the second longitudinal edges, suitable for use in a louvered covering system carrying on at least one face thereof and along the periphery thereof an adhesive carrying a removable protection covering.

Abstract: A water line test cap is claimed comprising an elongated body closed at one end and having an elongated cylindrical recess and external threads at the other end thereof, an internally-threaded nut threaded to the elongated body, the nut being provided with a bore communicating with the elongated cylindrical recess and an expandable O-ring disposed therein, the cylindrical recess, the bore and said O-ring being linearly disposed and having the same internal diameter sufficient to permit the entry of a water pipe therein. In a preferred embodiment, the water line test cap is also provided with means to bleed the interior of air.

Abstract: A process for preparing an explosive comprising contacting a ketone with a compound capable of producing a product, or compound, containing nitro groups for a time sufficient to obtain a product having a high-energy content and the product resulting therefrom.

Abstract: A cooling apparatus that comprises a first elongated metal tube, a second elongated metal tube longitudinally disposed within the first elongated metal tube having a substantial portion of its outer surfaces out of contact with the inner surface of the first elongated metal tube, with the inner metal tube being adapted to provide passage through it of a hot fluid, and means for cooling the outer surface of the first elongated metal tube, whereby at ambient temperatures the tubes can be easily separated for inspection and at operating temperatures the tubes are substantially in contact with each other.

Abstract: A melt adhesive composition containing an amorphous polypropylene, a selectively hydrogenated monoalkenyl arene/conjugated diene block copolymer and a tackifier.

Abstract: A process for improving resistance of pressure vessel shells, tubesheets, tubes, pipes, pipe fittings and machine parts to stress corrosion cracking comprising heating at least those portions of such bodies subject to danger by stress corrosion cracking to a critical elevated themperature level, cooling at least the surface portions of the metal body subject to stress corrosion cracking and then permitting such treated portions of the metal body to come to ambient temperature.

Abstract: Compatible polymer blends useful as melt adhesives comprising a copolymer of butene-1 and from about 5.5 to about 20 weight percent of ethylene or propylene, a hydrocarbon tackifier and a low molecular weight liquid polybutene having a molecular weight greater than about 2000.

Abstract: Compatible polymer blends useful as melt adhesives comprising a copolymer of butene-1 and from about 5.5 to about 20 weight percent of ethylene or propylene, a hydrocarbon tackifier and an amorphous polypropylene.

Abstract: A process for obtaining a gaseous sample from a stream containing solid particulate material, a gas, water and steam which comprises withdrawing a stream containing said particulate material, a gas, water and steam from a system containing the same through an elongated tubular member extending into said system and discharging said stream from said tubular member externally of said system, heating said stream in its passage through said tubular member, removing from said tubular member externally of said system a gaseous sample consisting essentially of said gas and said steam through a porous section of said elongated tubular member having openings in the wall thereof smaller in cross-section than the solid particulate material in said stream, and apparatus for carrying out the same.

Abstract: A novel paint composition comprising an organic solvent-based, organic solid film-forming component and an organic volatile corrosion inhibitor.

Abstract: A tube expander capable of simultaneously applying a plurality of selected radial pressures outwardly at a plurality of sections of a tube interior to provide selected expansions of the sections of the tube.

Abstract: A novel fuel composition containing the alcohol-soluble portion of the product obtained as a result of the mild reaction of a lignin-containing material with nitric acid and a component selected from the group consisting of water, methanol, ethanol mixtures thereof, mixtures of lower alcohols and hydrocarbon fuel.

Abstract: Compatible polymer blends useful as melt adhesives comprising a low density ethylene polymer, a copolymer of butene-1 and ethylene or propylene, a hydrocarbon tackifier and a low molecular weight polymer selected from the group consisting of a low molecular weight liquid polybutene, an amorphous polypropylene and mixtures thereof.

Abstract: A process for generating energy in a furnace or combustion engine which comprises burning therein the novel alcohol-soluble portion of the product obtained as a result of the mild reaction of a lignin-containing material, such as peat, with aqueous nitric acid.

Abstract: A product having corrosion inhibiting properties consisting essentially of the reaction product of a triflouroethanol with a cyclohexylamine or with a mixture of cyclohexylamine and a dicyclohexylamine; a composition having corrosion inhibiting properties consisting essentially of a carrier liquid and disposed therein the reaction product of a triflouroethanol with a cyclohexylamine or with a mixture of a cyclohexylamine and a dicyclohexylamine; a combination of a solid body carrying thereon a product having corrosion inhibiting properties consisting essentially of the reaction product of a triflouroethanol with a cyclohexylamine or with a mixture of a cyclohexylamine and a dicyclohexylamine; and a process for inhibiting corrosion of metal surface by contacting the same with the reaction product of a triflouroethanol with a cyclohexylamine or with a mixture of a cyclohexylamine and a dicyclohexylamine.