Abstract: Antidepressant compounds such as 2-[(4b,4c-dihydro-8bH-azirino[2,1,3-cd]dibenzo[a,f]pyrrolizin-8b-yl)oxy]et hyl-N,N-dimethylamine useful for alleviating depression in mammals.
Abstract: Compositions containing(a) fluoropolymer,(b) mica particles, mica particles coated with pigment, or metal flake,(c) a polymer of ethylenically unsaturated monomers, and(d) a liquid carrierAre useful for coating metal, especially cookware, to give lubricious surfaces.
Abstract: A process for preventing deposits when venting steam containing entrained polymer from high pressure reactors used for preparing nylon from dicarboxylic acid and diamine. The hot steam generated during condensation polymerization of the reactants is vented through a pressure-control valve at a rate which maintains a desired pressure in the reactor. Deposit of polymer in the valve or vent pipe after release of pressure is prevented by injecting water into the low pressure side of the valve or into the subsequent vent pipe. At least sufficient water is used to saturate the vented steam and to wet the walls of the vent pipe.
Abstract: Siliceous fibers characterized by being strong, water-insoluble, and porous, and having a five to seven-sided polygonal cross section are prepared by directionally freezing a quiescent body of aqueous polysilicic acid by subjecting it to a temperature of -5.degree. to -200.degree. C.
Abstract: A magnetic image decorator is disclosed wherein one or more cooperating magnetic decorator rolls which are supplied with toner particles are fitted with knife blades adapted to cause the toner particles to flow in a standing wave against a member such as a drum or belt carrying a latent magnetic image.
Abstract: A pneumatic tire comprising an annular body of an elastomeric material having a central tread portion, a belt under the tread, bead rings connected by sidewalls to the tread, a carcass extending toroidally between bead rings, and an inner liner to contain compressed air, characterized in that said carcass is a one-piece cordless carcass of a thermoplastic copolyetherester elastomer or a polyurethane elastomer having a multiplicity of closely placed slits extending through said carcass from about bead ring to about bead ring, said slits being in a direction approximately perpendicular to the median plane of the tire.
Abstract: Monomers of the formulas ##STR1## WHEREIN R and R.sup.1 are generally lower hydrocarbyl groups, R.sup.2 is an aromatic ultraviolet light-absorbing moiety bonded by aromatic carbon, a is 0 or 1 and b is 1 or 2 are useful in the formulation of light- and abrasion-resistant coatings for polymers.
Abstract: An alkyl ester of a chloro- or bromo-fluoroacetic acid is reacted with chlorosulfonic acid to produce the corresponding acid chloride. Exemplary is the reaction of ethylchlorofluoroacetate with chlorosulfonic acid at 120.degree.-200.degree. C to produce chlorofluoroacetyl chloride.
Abstract: Mannich condensation products useful in gasoline as carburetor detergents; the condensation compositions having the formula ##STR1## wherein Z is an alkyl - and hydroxy - substituted benzyl group wherein the alkyl has 20 to 1000 carbon atoms, n is 2 or 3; R is an alkyl of 1 to 20 carbon atoms; a, x and c are each 0 or 1; and b is 0 to 5; with the provisos that when a = 0, then b is at least 1 and c = 1; when a = 1 and x = 0, then b and c = 0; and when a = 1 and x = 1, then c = 1.
Abstract: A labelled package for low temperature use is disclosed. The label, with an ionomer adhesive, is adhered to an outer ionomer surface of the package wrapping by heat seal means and exhibits excellent adhesion at low temperature.
Abstract: A coating composition consisting essentially of certain heat-stable polymers, colorants, oxidation catalysts, and liquid carrier useful for coating an article to produce a finish which is capable of having a decorative pattern produced within it is provided.
Abstract: Methods for increasing the yield of rice crops comprising applying thereto an allophanimidate such as methyl 4-(4-chlorophenyl)-N-methoxycarbonylallophanimidate or methyl 4-(4-chlorophenyl)-N-methylthiocarbonylallophanimidate to the seeds, seedlings, or the soil in which the seeds or seedlings are planted.
Abstract: Epoxy resin powder coating compositions which have good shelf-life and which are capable of rapid cure are obtained by blending two types of epoxy resins with filler particles and a curing agent. One resin is of the epichlorohydrin-bisphenol-A type. The other resin is an epichlorohydrin-bisphenol-A epoxy modified with an epoxy-novolac. Rapidly curing films are obtained by using a hydroxy-containing, mixed aromatic-aliphatic polyether resin crosslinking agent. The cure is accelerated with an alkylimidazole. These compositions are useful in coating metal substrates, particularly pipe exteriors, when rapid cure, flexibility, and good adhesion are needed.
Abstract: The invention relates to impact wrenches for tightening threaded joints comprising an impact clutch accommodated in a housing and having a hammer which is axially movable for imparting each blow, and a device for automatically limiting the number of blows to a pre-set number of blows. The device for automatically limiting the number of blows comprises a blow number setter, a movable member directly co-operating with the hammer and axially movable upon each axial displacement of the hammer so as to enable the axial displacement of the hammer until a pre-set number of blows are delivered, and a locking device for locking the movable member against displacement in the position preventing further axial movement of the hammer after the ultimate blow of the pre-set number of blows is delivered. Thus the possibility of imparting blows in excess is eliminated without deenergization of the impact wrench drive, and the construction of the impact wrench is simplified.
Type:
Grant
Filed:
February 25, 1977
Date of Patent:
October 24, 1978
Assignee:
Vsesojuzny Nauchno-Issledova-Telsky I Proektno-Konstruktorsky Institut Mekhanizirovannogo I Ruchnogo Stroitelno-Montazhnogo Instrumenta, Vibratorov I Stroitelno-Otdelochnykh Mashin
Inventors:
Georgy Afanasievich Antipov, Vitaly Alexandrovich Berezhnoi, Mikhail Lvovich Gelfand, Boris Grigorievich Goldshtein, Leonid Avrumovich Gornik, Nikolai Stanislavovich Lavnikov, Leonid Nikolaevich Teres, Ivan Ivanovich Urazhdin, Yakov Isaakovich Tsipenjuk, Petr Stepanovich Yakubovsky
Abstract: A composition contains (A) 60 to 80 parts by weight of vinyl chloride polymer (B) 11 to 23 parts by weight of an acrylic elastomeric polymer formed from butyl acrylate and methyl methacrylate and (C) 15 to 30 parts by weight of a second acrylic polymer formed from methyl methacrylate.The composition is useful for moldings and extrusions particularly where good weatherability and/or reduced smoke generation are required and can be directly bonded to and reinforced with polyester.
Abstract: 3-Fluorobenzodiazepines, such as 3-fluoro-1,3-dihydro-1-methyl-7-chloro-5-phenyl-2H-1,4-benzodiazepin-2-one , useful as tranquilizers, muscle relaxants, and sedatives.
Type:
Grant
Filed:
November 23, 1977
Date of Patent:
October 17, 1978
Assignee:
E. I. Du Pont de Nemours and Company
Inventors:
Elena Maria Bingham, William Joseph Middleton
Abstract: Compounds of the formula ##STR1## wherein R is alkyl of 11 to 14 carbon atoms, andX is --SO.sub.3 H, --NO.sub.2 or --SO.sub.2 ClAre useful intermediates in the preparation of naphthoquinone miticides.
Abstract: According to the invention, the central processing unit for numbers represented in a system of residual classes comprises registers of first and second operands which are connected to generators, a multiplier, a divider, a shift unit, a modular arithmetic unit, and an analysis system. The analysis system is connected to sign registers, a result sign register, an overflow attribute register, and a result register. The result register is connected to the multiplier, the divider, the shift unit and the modular arithmetic unit. The invention makes it possible to develop a fundamentally novel family of computers operating with numbers in the system of residual classes.
Type:
Grant
Filed:
October 15, 1976
Date of Patent:
October 17, 1978
Assignee:
Institut Matematiki i Mekhaniki Akademii Nauk Kazakhskoi SSR
Inventors:
Izrail Yakovlevich Akushsky, Vladimir Mikhailovich Burtsev, Bulat Esenovich Duisenov, Ivan Timofeevich Pak, Anurbek Orymbekovich Zhautykov
Abstract: Apparatus for the determination of the oxidative stability of polymers exhibiting viscous or visco-elastic flow at the temperature of the determination is disclosed. The apparatus comprises a mixing head having means to subject polymer to shear, means to measure the oxygen content of gas, means to circulate the gas from the mixing means to the analyzing means and back to the mixing head and pressure control means to control the pressure of the gas at atmospheric pressure without extraneous dilution. In a preferred embodiment the pressure control means includes an elongated tube having a ratio of length to diameter of at least 800. A method for determining the oxidative stability of polymer under shear conditions is also disclosed. The apparatus and process may be used for the determination of the oxidative stability of, for example, elastomeric and thermoplastic polymers under conditions resembling the conditions under which such polymers are fabricated into articles.