Abstract: A curable resin composition comprising an isocyanuric ring-containing urethane-modified radical-polymerizable compound. The composition can give a protective coating having excellent surface mar resistance and improved secondary adhesion.

Abstract: Information producing apparatus for producing position and direction information of chip-like electric parts for use in the chip mount system. This apparatus comprises: a tablet digitizer; X and Y axis position memories to store the X and Y axis position data of the cursor; a menu position memory to store the position of the menu drawing which is divided into many menu spots and is attached on the tablet; a menu spot memory in which data corresponding to the menu spots is stored; a discrimination unit to discriminate whether the cursor is located within the menu drawing or not; and an arithmetic operation unit to calculate the menu spot position corresponding to the cursor position when the cursor exists in the menu drawing. When the cursor is out of the menu drawing, the readout data from the X and Y axis position memories is used as the position information on the printed wiring board of the chip-like electric parts to be installed.

Abstract: An iron powder developer carrier for electrophotography having at least the outer surface thereof coated with iron oxide. The iron oxide has a particle size of 50 to 200.mu., an apparent density of 1.5 to 2.5 g/cm.sup.3 and a specific surface area of 0.01 to 0.3 m.sup.2 /g.A process for the preparation of iron powder developer carriers for electrophotography, which comprises the steps of subjecting a starting iron powder to a primary calcination treatment in an inert gas atmosphere without using a binder, pulverizing and classifying said calcination product to prepare an intermediate iron powder, reducing the intermediate iron powder in a reducing atmosphere and washing the intermediate iron powder, and subjecting the intermediate iron powder to an oxidizing calcination treatment.

Abstract: From a refinery's intermediate byproduct composed of a sulfide, oxide or arsenide containing copper and arsenic, a liquid extract containing copper and arsenic at a concentration ratio of not less than 1.0 is obtained. The liquid extract is cooled to a predetermined temperature to achieve solid-liquid phase separation, and the liquid resulting from the phase separation is neutralized to pH 6-7 to isolate copper and arsenic in the form of a composite precipitate. The composite copper-arsenic compound mixture thus obtained has a high purity and low production cost and can be converted through a simple treatment into an effective antiseptic for wood.

Abstract: An iron powder developing carrier for developing an electrostatic latent image, a manufacturing method thereof, a developer containing said developing carrier and a method of forming a visible image by using said developer.Said iron powder developing carrier has the apparent density from 1.5 to 2.5. Said manufacturing method comprises the steps of sintering a raw iron powder having been ground to particles of not larger than 50 microns in diameter without using any binder agent at the temperature from 900.degree. to 1200.degree. C. to form an sintered body, grinding and classifying said sintered body into an intermediate iron powder having the particle diameter from 50 to 200 microns, then treating said intermediate iron powder to oxidize at the temperature from 280.degree. to 390.degree. C., and adjusting the resultant iron powder so as to have the apparent density from 1.5 to 2.5.

Abstract: Carbonyl sulfide is prepared with an enhanced purity by a process wherein carbon monoxide is caused to bubble through molten sulfur maintained at a temperature of from 300.degree. to 440.degree. C.; and, the resulting gaseous mixture is maintained at a reaction temperature exceeding 510.degree. C. but not higher than 650.degree. C.

Abstract: A can forming method and apparatus wherein cut-burrs of a can blank are removed from the ends thereof an adhesive film is stuck onto the preheated ends of the blank and, then, said ends are subjected to high-frequency induction heating for melting said films to join said ends together in such a manner as to prevent edge effect and associated deformations from occurring, thereby to form a lapped seam having a remarkably high adhesive strength substantially without pin-hole formation.

Abstract: Carbon monoxide is reacted with sulfur in the vapor phase at 250.degree.-650.degree. C. to prepare carbonyl sulfide, wherein a reactor is used, in which at least the inner surface is made of an alloy consisting essentially of, based on the weight of the alloy, 20-60% of Cr, 40-65% of Ni, 0-10% of Mo, 0-4% of Nb+Ta, and 0-3% of Fe. The reactor not only possesses good corrosion resistance to the gaseous reaction mixture, but also minimizes the reduction in the purity of carbonyl sulfide produced, which reduction occurs with the lapse of operation time.

Abstract: A lapped seam can having a high safety characteristic used as containers of soft drinks or beer wherein the cut-burrs at the end of the inner end portion of the can blank are completely removed so that micro-leak passages apt to occur in the lapped seam can are shut off, thereby permitting a long term storage of the can content without deterioration by preventing metal from being dissolved out from said inner end portion.

Abstract: A can forming method and apparatus wherein cut-burrs of a can blank are removed from the ends thereof and an adhesive film is stuck onto the preheated ends of the blank and, then, said ends are subjected to high-frequency induction heating for melting said films to join said ends together in such a manner as to prevent edge effect and associated deformations from occurring, thereby to form a lapped seam having a remarkably high adhesive strength substantially without pin-hole formation.

Abstract: Single-crystal epitaxial layers of compound semiconductors or mixed semiconductors are grown on suitable substrates from the liquid phase, which consists of a molten metallic solvent dissolving a source material of the semiconductors, and within which the temperature gradient is produced so that in a high temperature region of the liquid solution a solid source material is dissolving into the liquid solution with at least a portion of the solid source material always at an undissolved state and in a low temperature region of the liquid solution an epitaxial layer is depositing onto the substrate, the temperatures in the liquid solution being kept constant during the epitaxial growth. Each substrate is positioned in one of a number of slots which are provided in the upper surface of a slider and it is successively transferred with the slider to contact with the liquid solution.