Abstract: A treatment agent for elastic polyurethane fibers comprising a dispersion in which a higher fatty acid magnesium salt is colloidally dispersed in a silicone mixture consisting of a silicone oil with a viscosity of 5×10−6−50×10−6 m2/S at 25° C. as a dispersion medium and a dispersant mainly comprising a modified silicone at a ratio by weight of the dispersion medium/the dispersant=100/0.5−100/4.5, wherein the amount of the higher fatty acid magnesium salt is 1 to 10 parts by weight per 100 parts by weight of the silicone oil.

Abstract: The present invention provides antibacterial zeolite exhibiting a less discoloring action, obtained by treating the surface of zeolite supporting an antibacterial metal with 0.5 to 20% by weight, based on said zeolite, of a composition comprising (A) 100 parts by weight of a hydrolyzable silane and/or oligomer thereof which comprises 10 to 100% by weight of a hydrolyzable silane and/or oligomer thereof having an aryl group; (B) 1 to 1000 parts by weight of an organopolysiloxane having a basic nitrogen atom; and (C) 0.2 to 250 parts by weight of an acid which is soluble in water and which can form a salt with the aforesaid (B). The present antibacterial zeolite exhibits a remarkably less action of discoloring an organic polymer which contains the antibacterial zeolite when the polymer blend is placed under the influence of heat or the sunshine.

Abstract: A magnetic recording medium has a substrate and a magnetic layer formed on the substrate. The magnetic layer includes magnetic powder and a binder for binding the magnetic powder on the substrate. The binder includes at least a resin component containing at least an aminoquinone structure selected from an aminoquinone structure group shown with formulas (1-1a), (1-1b), (1-3a) and (1-3b) as a constitutional unit and at least a polar group selected from a group shown with a formula (1-2) in a composition of the resin component. Thus, the magnetic recording medium has excellent corrosion resistance of the magnetic powder and excellent conservation and running durability.

Abstract: A magnetic recording medium has a substrate and an non-magnetic underlayer formed on the substrate and a magnetic layer formed on the non-magnetic layer. The magnetic layer include a magnetic powder and a binder for binding the magnetic powder on the non-magnetic layer. The binder includes at least a resin component containing at least an aminoquinone structure selected from an aminoquinone structure group shown with formulas (1-1) and (1-2) as a constitutional unit. As the magnetic powder, a metal magnetic powder mainly made of Fe and having a saturation magnetization .sigma.s is used. The magnetic layer has a saturation flux density Bm of 3500 to 5000 G and a coercive force of 1800 to 3000 Oe and a surface roughness SRa of 1 to 10 nm and a thickness of not more than 1.0 .mu.m.

Abstract: Shelf mounting arrangements for electronic shelf displays or similar articles including electronic shelf display mounting devices for mounting electronic shelf displays onto showcase shelves and similar surfaces. In a preferred embodiment of the present invention, the electronic shelf display mounting device generally includes a shelf mounting member and an electronic shelf display mounting member. The shelf mounting member includes upper and lower mounting legs, an engaging portion having slits formed at different angles and a fixing portion for fixing the mounting legs to the shelf. The electronic shelf display mounting member includes a connecting portion having engaging projections for engagement with the appropriate slits in the shelf mounting member and an electronic shelf display mounting portion for fixing the electronic shelf displays in position.

Abstract: An auger is accommodated in a vertically disposed cylindrical refrigerated casing for scratching an ice layer made around the inner periphery of the refrigerated casing and feeding the scratched ice upward. The auger includes a columnar main body and a spiral blade disposed around the outer periphery of the main body. The cross section of the spiral blade in the axial direction of the main body is formed of an upper end surface extending outward in a radial direction from the main body, a lower end surface spaced axially from the upper end surface and extending outward in the radial direction from the main body, and a tapered surface linearly connecting both the extreme ends of the upper end surface and the lower end surface. The tapered surface extends upwardly and radially inwardly from a radially outermost portion of the extreme end of the lower end surface.

Abstract: An auger-type ice making machine includes an ice making barrel, an auger provided in the ice making barrel, an upper bearing and a lower bearing which are provided inside the ice making barrel for supporting the auger rotatably, and a drive unit for rotating the auger. At the bottom end of the ice making barrel, a connecting flange extending outwardly in the radial direction is formed integrally with the ice making barrel by friction welding. The connecting flange is tightened to the top surface of a casing of the drive unit with bolts. A bearing housing of the lower bearing is fixed in the ice making barrel apart from the casing with a bolt which is screwed in the ice making barrel. The bearing housing of the lower bearing may alternatively be fixed by forming an outward flange and a plurality of projections extending outwardly at the bottom end of the bearing housing and by fitting the plurality of projections in a fitting groove of the casing of the drive unit.

Abstract: A rotary polishing tool comprises a disk-shaped polishing portion corresponding to a workpiece and a disk-shaped substrate which is positioned on the rotary center of the polishing portion for supporting the polishing portion. The substrate is provided with a mounting hole through which a driving shaft is passed on the rotary center. The substrate is made of metal and is provided with a plurality of holes, and there is provided a rubber layer which is interposed between the polishing portion and the substrate and vulcanized and bonded to the polishing portion and the substrate to fix the polishing portion and the substrate to each other.

Abstract: A polymer composition comprising a polymer or a highly saturated polymer, an organic peroxide and a maleimide derivative, said polymer being produced by radical polymerization using a sulfur-free compound as an emulsifier and a terpene type compound as a molecular weight modifier and said highly saturated polymer being obtained by hydrogenating said polymer.

Abstract: A stepping motor for a timepiece is constituted by a rotatable rotor magnet on an outer surface of which magnetic poles having different polarities are alternately formed, and two stator assemblies, each including a pair of stators opposing around the rotor magnet to have a gap and having stator magnetic pole portions, and an excitation coil for exciting the pair of stators, for supplying currents to the excitation coils to rotate the rotor magnet. The two stator assemblies are disposed to be separated by a predetermined distance in an axial direction of the rotor magnet, so that stator gap central lines of the two stator assemblies cross each other at an angle of 90.degree. when viewed from the axial direction.

Abstract: A heat resistant colorant for mass-coloring polyester such as polyethylene terephthalate, containing 100 parts of pigments and/or dyes and 42.about.2,000 parts of a liquid aliphatic polyester dispersing medium having a viscosity at 25.degree. C. not exceeding 150 poises and a hydroxyl value not exceeding 25 mgKOH/g. The dispersing medium contains a polycondensate of alkylene glycols including at least 30% by weight of 1,3-butanediol with at least one aliphatic dicarboxylic acid, which polycondensate has at least one terminal group blocked with a monohydric alcohol. The colorants are easily blended and uniformly dispersed in a fiber grade polyester, without causing degradation of the polyester. Fibers mass-colored by the colorant are excellent in stability during their manufacture and uniform in quality.

Abstract: An electronic tone generator in which a plurality of types of scale data and tone-length data are stored in an associative arrangement at predetermined addresses in a single storage device. The plurality of types of scale data read from the single storage device are input to corresponding waveform generators, where melody-waveform signals are generated. The melody-waveform signals generated in the respective waveform generators are mixed and synthesized by a mixer before being output from an output device. The waveform generators are adapted to switch envelope waveforms generated by envelope-waveform generators of a digital circuit configuration with waveform signals corresponding to the scale data, thereby obtaining melody-waveform signals.

Abstract: An apparatus for producing a frequency-multiplex signal on the basis of a plurality of signals so as to record the produced frequency-multiplex signal on a recording medium, second signal having a frequency lower than that of the first signal. The apparatus includes a multiplying circuit for multiplying the frequency of the second signal by 2 and an amplitude-modulator for multiplying the first signal by the output signal of the multiplying circuit. Also included in the apparatus is an adder for adding the second signal to the output signal of the amplitude-modulator, the output signal of the adder being recorded as the frequency-multiplexing signal on the recording medium.

Abstract: A nitrile group-containing, highly saturated copolymer rubber is disclosed, the copolymer chain of which is comprised of (1) 5 to 40% by weight of units of an unsaturated nitrile monomer, (2) 1 to 80% by weight of units of a monomer selected from a fluorine-free unsaturated carboxylic acid ester monomer and a fluorine-containing vinyl monomer and (3) up to 20% by weight of units of a conjugated diene monomer, with the balance being (4) units of a hydrogenated conjugated diene monomer, wherein the sum of the contents of the monomer units (1) and (2) is 30 to 90% and the sum of the contents of the monomer units (3) and (4) is 10 to 70% by weight. This copolymer rubber results in a rubber composition having an improved cold resistance.

Abstract: A nitrile group-containing, highly saturated copolymer rubber is disclosed, the copolymer chain of which is comprised of (1) 5 to 40% by weight of units of an unsaturated nitrile monomer, (2) 1 to 80% by weight of units of a monomer selected from a fluorine-free unsaturated carboxylic acid ester monomer and a fluorine-containing vinyl monomer and (3) up to 20% by weight of units of a conjugated diene monomer, with the balance being (4) units of a hydrogenated conjugated diene monomer, wherein the sum of the contents of the monomer units (1) and (2) is 30 to 90% and the sum of the contents of the monomer units (3) and (4) is 10 to 70% by weight. This copolymer rubber results in a rubber composition having an improved cold resistance.

Abstract: A rubber composition comprising a nitrile group-containing hydrocarbon rubber and a vulcanizing system, characterized in that the iodine value of said rubber does not exceed 120 and the pH of the tetrahydrofuran solution of said rubber is at least 5.

Abstract: A nitrile group-containing, highly saturated copolymer rubber is disclosed, the copolymer chain of which is comprised of (1) 5 to 40% by weight of units of an unsaturated nitrile monomer, (2) 1 to 80% by weight of units of a monomer selected from a fluorine-free unsaturated carboxylic acid ester monomer and a fluorine-containing vinyl monomer and (3) up to 20% by weight of units of a conjugated diene monomer, with the balance being (4) units of a hydrogenated conjugated diene monomer, wherein the sum of the contents of the monomer units (1) and (2) is 30 to 90% and the sum of the contents of the monomer units (3) and (4) is 10 to 70% by weight. This copolymer rubber results in a rubber composition having an improved cold resistance.

Abstract: A black liquid colorant for dope dyeing of polyester fibers, comprising 5-50 wt % carbon black obtained by wet-oxidation with peroxide and subsequent neutralization of a gas phase oxidized carbon black, and 95-50 wt % liquid dispersion medium such as liquid polyester. Black polyester fibers, typically polyethylene terephthalate fibers, dope-dyed with preferably 3-15 wt % base on the polyester of said black liquid colorant, have a deep blackness with a bluish tone and neither polymer deterioration nor filament breakage is observed.

Abstract: A carriage mechanism for a printer comprises an ink ribbon take-up mechanism for taking up an ink ribbon, a head moving mechanism for moving a printing head which is provided on a carriage between a printing position where the printing head can carry out a printing operation by transferring ink coated on the ink ribbon on a recording paper and a non-printing position where the printing head does not carry out the printing operation, and a single driving source for selectively driving the ink ribbon take-up mechanism and the head moving mechanism.