Abstract: A process for producing methacrolein and methacrylic acid by oxidizing isobutyl aldehyde with molecular oxygen or molecular oxygen-containing gas in the vapor phase characterized by the use of a catalyst of heteropoly-acid or a mixture of heterpoly-acid and its salt which has the general formula:Mo.sub.a V.sub.b P.sub.c X.sub.d Y.sub.e O.sub.fwherein Mo, V, P and O represent respectively molybdenum, vanadium, phosphorus and oxygen, X represents one or more elements selected from the group consisting of copper, tin, thorium, aluminum, germanium, nickel, iron, cobalt, zinc, titanium, lead, rhenium, zirconium, cerium, chromium, bismuth and arsenic, Y represents one or more elements selected from the group consisting of potassium, rubidium, cesium and thallium and a, b, c, d, e and f represent the atomic ratio of the elements where,a is 10,b is a number of 6 or less than 6 excluding 0,c is a number of 0.5 to 6,d is a number of 3 or less than 3 excluding 0,e is a number of 0 to 0.

Abstract: Zinc oxide is used during manufacture of silane-modified ethylene-type resin so that the resulting material changes little with the passage of time.

Abstract: This invention relates to a liquid explosive composition comprising 2 to 40 weight percent of formamide, 2 to 40 weight percent of alcohol, 3 to 70 weight percent of nitroparaffin and 10 to 80 weight percent of a metal salt of perchloric acid and to a gelled explosive composition comprising the above components, 2 to 20 weight percent of an organic thickening agent and/or 1 to 15 weight percent of an aerating agent. The present invention is also concerned with a method of producing the explosive compositions of the character mentioned above.

Abstract: A compound represented by the formula: ##STR1## wherein R.sub.1 is hydrogen, acetyl or alkoxycarbonyl having 1-3 carbon atoms of the alkoxy, R.sub.2 is alkyl having 1-12 carbon atoms, alkoxycarbonylmethyl having 1-12 carbon atoms of the alkoxy, benzyl, 2-pyridyl, cyclohexyl phenyl or phenyl substituted by one or two members selected from the group consisting of alkyl having 1-3 carbon atoms, halogen and nitro, and n is 0 or 1, with the proviso that when n is one, R.sub.1 represents acetyl exclusively, and use thereof as a fungicide.

Abstract: A chain link tool including a pair of jaws on one side of the tool adapted to close the respective eyes of a cross chain connecting link, said jaws moving together as the handles are moved together and conversely, and such that a groove and a projection on the other side of the tool are adapted to receive the transverse portion of the side chain and to grasp the curved end of the cross-chain connecting link respectively when the handles are apart and to disengage the cross-chain connecting link as the handles are moved together.

Abstract: A negative-feedback circuit for use with a moving-coil loudspeaker and a host amplifier modifies the feedback signal from the output of the host amplifier in such a say that the velocity of the voice coil of the speaker more closely follows the signal voltage input to the host amplifier. The power output of the power amplifier is delivered to the voice coil through a low resistance, and a high resistance feedback path is provided from each side of this low resistance to the input of the host amplifier. Other reactive, resistive and non-linear elements may also be used with the high resistance feedback paths for improved operation.

Abstract: A compound represented by the formula: ##STR1## wherein R.sub.1 is hydrogen, lower alkylcarbonyl, lower alkoxycarbonyl, phenoxycarbonyl, lower alkylsulfonyl or lower alkylcarbamoyl, R.sub.2 is phenyl; phenyl substituted by one or more members selected from the group consisting of lower alkyl, lower alkoxy, lower alkylthio, lower alkoxycarbonyl, halogen, formyl, cyano, thiocyano, nitro, lower alkylsulfinyl, lower alkylsulfonyl, lower alkylcarbonyl, acetylamino or phenyl; or naphthyl, with the proviso that when R.sub.1 is hydrogen or lower alkylcarbonyl, R.sub.2 is the said substituted phenyl or naphthyl, and use thereof as a fungicide.

Abstract: An azo compound which in the free acid form is represented by the following formula: ##STR1## where R.sub.1 stands for methyl, ethyl, R.sub.2 stands for hydrogen, methyl, methoxy or ethoxy, R.sub.3 stands for hydrogen or methyl, and K stands for ##STR2## wherein the benzene nucleus A may be further substituted by methyl, amino, acetylamino or methoxy or: ##STR3## wherein these naphthalene neuclei may be further substituted by hydroxy, amino or acetylamino, also a process for preparing the azo compound and a dyeing method using said azo compound.

Abstract: This invention relates to a method for selectively enhancing absorption of 5-fluorouracil, bleomycins or bleomycin derivatives into the gastrointestinal tumor site by orally administering such substance together with an alkali metal salt of polyacrylic acid, and an orally administable antitumor composition used for such method.

Abstract: A catalyst having a heteropoly-acid structure and the general formula:Mo.sub.a V.sub.b P.sub.c Cu.sub.d X.sub.e O.sub.fwherein Mo, V, P, Cu and O represent respectively molybdenum, vanadium, phosphorus, copper and oxygen, X represents one or more elements selected from the group consisting of tin, thorium, germanium, nickel, iron, cobalt, magnesium, zinc, titanium, lead, rhenium, zirconium and chromium and a, b, c, d, e and f represent the atomic ratio of the elements where,a is 10b is a number of 3 or less than 3 excluding 0,c is a number of 0.5 to 3,d is a number of 3 or less than 3 excluding 0,e is a number of 3 or less than 3 excluding 0,f is a number determined depending on the valency and atomic ratio of other elements.There is also provided a process for producing methacrylic acid by oxidizing methacrolein with molecular oxygen or molecular oxygen-containing gas in the presence of the catalyst defined above.

Abstract: Heat-resistant pressure-sensitive adhesives are used to form the closure of a heat-shrinkable wrap-around sleeve. Suitable pressure-sensitive adhesives include silicone-based adhesives and thermosetting adhesives.

Abstract: A fitting for receiving and locking a plastic tubing in place within it including a hollow tubular member having both compression and flexible locking barbs therein.

Abstract: Fastening means for a pair of flaps or the like are provided having first and second ferromagnetic plates, an elongated ferromagnetic element of cross-sectional area smaller than the area of the surfaces of either plate affixed at one end thereof substantially normal to a surface of the first of the plates, and magnetic means affixed in close proximity to the elongated element along a substantial portion, but not all, of its length. It is also contemplated that the above elements will be mounted by means of first and second thermoplastic mounting elements upon a pair of thermoplastic strips, which strips are affixable to facing surfaces of the flaps, in such a way that the nonsecured end of the elongated element releasably lockably engages a surface of the second plate in flush abutting relation when the fastening means is in the closed position.

Abstract: A collimator suitable for use in the creation of more than one miniaturized image of a radioactive concentration simultaneously by a radiation receiving and imaging device, said collimator having at least two adjacent collimating sections separated by areas substantially opaque to radiation from the radioactive object, each such collimating section being a grid-like arrangement of wall portions, adapted to absorb substantially all radiation from the radioactive object which impinges thereon, extending between the top surface and the bottom surface of the collimator defining a plurality of holes therebetween of substantially any desired cross-sectional shape.

Abstract: Novel .alpha.-methyl-.beta.-aminopropiophenone derivatives having bronchodilator activity represented by the following general formula: ##STR1## where R represents alkyl having 1-6 carbon atom benzyl or phenyl; R.sub.1 and R.sub.2 individually represent alkyl having 1-6 carbon atom or they form, joining to each other together with the adjacent nitrogen atom with or without intervening an atom other than carbon atom, a saturated heterocyclic ring which may be substituted with lower alkyl; n is an integer of 0, 1 or 2 on the proviso that R represents methyl or ethyl if n is 0, as well as their non-toxic salts are presented. Method of producing the new derivatives and the bronchodilatation method using them are disclosed as well.

Abstract: A machine and method comprising a stack of cards, a stripping feeder for stripping the bottom card from the stack and moving a series of such cards with an intermittent motion to a series of feed rollers which convert such intermittent motion into a constant velocity and for spacing the cards one from another. A tape coated with magnetic material is laid on the surface of each card by a guiding device after the card has passed through the feed rollers and the combination is fed between a heated roller and a reaction roller which are driven synchronously with the cards. The heated roller is pressed against the cards at a constant pressure exerted by an air cylinder to seal a portion of the magnetic coating to each card.

Abstract: An apparatus for treating flowable material falling through an irradiation zone in the form of a thin, substantially nonturbulent, cohesive layer including in combination an outlet reservoir adapted to catch the falling material after it is irradiated; a source of radiation adapted to direct radiation against the layer as it falls through the irradiation zone; and means for forming flowable material flowing through a pipe or similar material transfer means into a thin, substantially nonturbulent, cohesive layer and directing the layer so formed through the irradiation zone, said means having an inlet orifice adapted to receive material from the transfer means and convey it to an upwardly extending transition zone wherein the flow is gradually widened prior to its entry into a gradually upwardly sloped approach zone which terminates at a forward edge over which the material passes in the appropriate form for treatment in the irradiation zone.

Abstract: A negative-feedback circuit for use with a moving-coil loudspeaker and a host amplifier modifies the feedback signal from the output of the host amplifier in such a way that the velocity of the voice coil of the speaker more closely follows the signal voltage input to the host amplifier. The power output of the power amplifier is delivered to the voice coil through a low resistance, and a high resistance feedback path is provided from each side of this low resistance to the input of the host amplifier. Other reactive and resistive elements may also be used with the high resistance feedback paths for improved operation.

Abstract: A process for the production of 2-chlorobenzonitrile derivatives represented by the general formula (I): ##STR1## (wherein n is a number of 1 or 2) characterized by reacting a compound of the general formula (II): ##STR2## (wherein Cl.sub.n is as defined above) with lithium chloride or a mixture of lithium chloride and anhydrous aluminum chloride or with lithium aluminum chloride in an aprotic solvent.

Abstract: Solar cells are manufactured by a simplified method in which a single protective layer acts as an anti-reflection coating and an encapsulation. In cases where the junction is formed by ion implantation techniques, the same layer also serves as the implantation oxide. In addition, this multi-purpose layer may also serve as a mass analyzer, allowing the desired species of ions to reach the surface of the semiconductor but blocking the heavier undesired species. The necessary contacts may be formed prior to implantation, and the use of alloyed aluminum contacts with aluminum oxide passivation permits a simplified contacting procedure. A fully automatic contacting method and configuration for linear materials is also disclosed.