Abstract: An allergy preventive or itching preventive food containing persimmon leaves or a persimmon leaf extract, a persimmon leaf extract-containing cosmetic composition having the action of improving allergic rough skin conditions or alleviating itching, an allergy or itching preventive or therapeutic composition.

Abstract: Relates to an interdental cleaning tool provided on the peripheral surface of a shaft member 1 with one or a plurality of projections 2, the projections being pinnulate elements or cirrate elements, and shaft member 1 and projections 2 being integrally molded from synthetic resin, whereby there may be afforded a soft touch against the tissues of the oral cavity during use, deviation in extraction force of the pinnulate members and cirrate members may be prevented, and production costs may be reduced.

Abstract: The present invention provides a moisture curing one-pack urethane adhesive composition which has a good adhesive property to a painted steel. The moisture-curing one-pack urethane adhesive composition according to the present invention contains an isocyanate group-terminated urethane prepolymer as a main component, and also contains (1) a silane coupling agent and/or a polyisocyanate derivative of a silane coupling agent, as an adhesive promoter, and (2) (a) 2,2′-dimorpholinodiethyl ether and/or di(2,6-dimethylmorpholinoethyl)ether, and (b) at least one tin-based catalyst selected from the group consisting of dibutyltindiacetylacetonate, dibutyltindilaurate, dibutyltin diacetate, dibutyltin dimaleate, dioctyltin dilaurate and tin octanoate, as curing catalysts. The moisture-curing one-pack urethane adhesive composition according to the present invention is particularly suitable for bonding automotive window glasses to automotive bodies.

Abstract: An underfilling material for a semiconductor package holding semiconductor elements on a carrier substrate mounted on a circuit board, containing a one-pack type thermosetting urethane composition which preferably comprises a urethane prepolymer having a terminal isocyanate group, which is obtained by reacting a polyol with an excessive amount of a polyisocyanate, and a fine powder-coated curing agent comprising a curing agent which is in a solid state at room temperature and surface active sites of which are covered with a fine powder. This composition can achieve both the low temperature curing properties and the storage stability.

Abstract: An underfilling material for a semiconductor package holding semiconductor elements on a carrier substrate mounted on a circuit board, containing a one-pack type thermosetting urethane composition which preferably comprises a urethane prepolymer having a terminal isocyanate group, which is obtained by reacting a polyol with an excessive amount of a polyisocyanate, and a fine powder-coated curing agent comprising a curing agent which is in a solid state at room temperature and surface active sites of which are covered with a fine powder. This composition can achieve both the low temperature curing properties and the storage stability.

Abstract: The present invention provides a moisture-curing one-pack urethane adhesive composition which has a good adhesive property to a painted steel. The moisture-curing one-pack urethane adhesive composition according to the present invention contains an isocyanate group-terminated urethane prepolymer as a main component, and also contains (1) a silane coupling agent as an adhesive promoter, and (2) (a) 2,2′-dimorpholinodiethyl ether and/or di(2,6-dimethylmorpholinoethyl)ether, and (b)dibutyltin diacetylacetonate, as curing catalysts. The moisture-curing one-pack urethane adhesive composition according to the present invention is particularly suitable for bonding automotive window glasses to automotive bodies.

Abstract: A sprocket has a mounting part for mounting on a wheel and a corrugated section provided with teeth for engagement with a chain such that the sprocket has a reduces volume and weight and allows for appropriate engagement with the chain by having the position of the sprocket agree with the position of the chain. The mounting part has a first raised section raised toward a one plate surface side and a second raised section raised toward another plate surface side with respect to a longitudinally central plane extending through a center of the sprocket so as to divide the total volume and weight of the sprocket into substantially equal sections. A flat top part of the first raised section having a mounting hole is on a level with a bottommost end surface of the sprocket.

Abstract: A piston pump has a piston and cylinder, the piston being adapted to reciprocally move within the cylinder to effect a suction stroke and discharge stroke. A gas is supplied into the cylinder during and/or after the suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material in the cylinder to thereby discharge the gas and high-viscosity material into a pipe. A first step introduces a high-viscosity material into a gas, a second step pressurizes, by a pump, a combination of the high-viscosity material and the gas transferred from the first step, a third step passes the combination in a pressurized state through a dispersing pipe to disperse the gas into the high-viscosity material to produce a mixture, and a fourth step discharges the mixture to effect foaming.

Abstract: A sprocket includes a body, and teeth formed on the peripheral edge of the body. The teeth have a thickness greater than that of the body. This design enables the use of the existing chain and brings about a reduction in the weight of the overall sprocket.

Abstract: An apparatus is disclosed for injecting an expandable or foaming material in a closed sectional structure of a body. The apparatus is suitable for mass-producing vehicles, such as automobiles efficiently. This apparatus is provided with a manipulator (38) movable to a desired position, a injector (50) fixed to the manipulator, a device (56) for supplying the expandable or foaming material to the injector, and a controller (40) adapted to control the position of the manipulator (10) so that the injector is set in a position in which the foaming material can be supplied to the closed sectional structure of the vehicle body through an injection port of the same closed sectional structure, and also adapted to control the supply device so that the foaming material can be injected and filled in the closed sectional structure thereof by only such an amount that was set in accordance with the volume of the inside of the sectional structure.

Abstract: A sprocket 1 includes a wavy region 2. The wavy region is formed at least at the outer periphery of the sprocket and extends in an undulating fashion along the circumference of the sprocket. The wavy region has a plurality of convex joint portions 3. A plurality of teeth 5 are formed at the outer end of the convex joint portions.

Abstract: A sprocket includes a body, and teeth formed on the peripheral edge of the body. The teeth have a thickness greater than that of the body. This design enables the use of an existing chain and brings about a reduction in the weight of the overall sprocket.

Abstract: A luminous composition containing (A) at least one polymer selected from the group consisting of a fluoropolymer and a graft polymer which is a fluoropolymer to which a cyanoethylated acrylic monomer is grafted, (B) an alkoxysilane compound having a primary amine group, (C) an alcohol having 1 to 4 carbon atoms, (D) a fluorescent material powder, and (E) an organic solvent, which is suitable for the formation of a luminous layer of an electro-luminescent device, since it improves the adhesion of the luminous layer to a transparent electrode, and has practically satisfactory pot life and moisture resistance.

Abstract: Low-pressure gas is mixed in a viscous material. The flow of the gas can be easily controlled so that the dispersion of the mixing ratio of the viscous material to the gas may be confined within a small tolerance and fine bubbles may be uniformly distributed in the interior of the viscous material. The gas is mixed in the viscous material by a first pump, from which a mixture of the gas and the viscous material is delivered. Pressure is applied to the mixture by a second pump. The gas is distributed in the interior of the viscous material by allowing the mixture under pressure to pass through a conduit assembly. The viscous material is foamed when the mixture is discharged from a nozzle through a discharge pipe.

Abstract: A rotary member in the form of a sprocket or a brake disc for transmitting a drive force or brake force, the rotary member having an annular hub portion arranged on a center side, an annular ring portion arranged on an outer circumferential side, and a plurality of arm portions connecting the hub portion and the ring portion, with a plurality of weight reduction holes partitioned by the arm portions between the hub portion and the ring portion. The plurality of arm portions are provided so that centers of their distal end portions on the ring portion side and centers of their proximal end portions on the hub portion side are offset in one circumferential direction, respectively, and the hub portion and the ring portion are not directly connected to each other by longitudinal sectional lines that intersect with the arm portions in a radial direction of the rotary member.

Abstract: A cyanoethyl group-containing graft polymer comprising a hydrocarbon polymer backbone comprising butadiene units, to which a cyanoethylated (meth)acrylate monomer of the formula:CH.sub.2 .dbd.CR.sub.1 --COO--R.sub.2 --(OCH.sub.2 CH.sub.2 CN).sub.min which R.sub.1 is a hydrogen atom or a methyl group; R.sub.2 is a residue derived from a (m+1)-valent polyhydroxyl compound by the removal of all the hydroxyl groups; and m is an integer of at least 1, which is useful as a binder resin for positive and negative electrodes of lithium ion secondary batteries and for organic dispersion type electroluminescent device.

Abstract: The invention resides in mixing low-pressure gas in a viscous material. The flow of the gas can be easily controlled so that the dispersion of the mixing ratio of the viscous material to the gas may be confined within a small tolerance and fine bubbles may be uniformly distributed in the interior of the viscous material.The gas is mixed in the viscous material by means of a first pump 42, from which a mixture of the gas and the viscous material is delivered. Pressure is applied to the mixture by means of a second pump 51. The gas is distributed in the interior of the viscous material by allowing the mixture under pressure to pass through a conduit assembly 61. The viscous material is foamed when the mixture is discharged from a nozzle 73 through a discharge pipe 71.

Abstract: An imporved process for producing tricyanoethylated pentaerythritol by selectively cyanoethylating only three hydroxy groups of pentaerythritol in a high yield such as 90 to 95%, involves reacting one mole of pentaerythritol with three mole of acrylonitrile by Micheal Addition Reaction in an alkaline aqueous solution in coexistence with an extraction solvent. The tricyanoethylated pentaerythritol has a high purity and is useful for production of a high dielectric polymer.

Abstract: A sprocket made of low carbon steel of not more than 0.25 wt % in the carbon content comprising teeth portion which are quenched to a hardness close to the theoretical maximum quenching hardness of 35-55 Rockwell hardness C, and an inside diameter mounting hole.