Abstract: A magnetic recording medium for data storage uses a magnetic recording layer having at least two ferromagnetic films antiferromagnetically coupled together across a nonferromagnetic spacer film. The magnetic moments of the two antiferromagnetically-coupled films are oriented antiparallel, and thus the net remanent magnetization-thickness product (Mrt) of the recording layer is the difference in the Mrt values of the two ferromagnetic films. This reduction in Mrt is accomplished without a reduction in the thermal stability of the recording medium because the volumes of the grains in the antiferromagnetically-coupled films add constructively. In a magnetic recording rigid disk application, the magnetic layer comprises two ferromagnetic films, each a granular film of a sputter deposited CoPtCrB alloy, separated by a Ru spacer film having a thickness to maximize the antiferromagnetic exchange coupling between the two CoPtCrB films.

Abstract: An ester compound prepared by esterifying at least one OH group of a polyhydric phenol as a condensation product of a non-substituted or substituted resorcinol and a carbonyl compound with an organic carboxylic acid having 1 to 20 carbon atoms or a derivative thereof, which necessarily contain an organic carboxylic polyacid having 1 to 20 carbon atoms or a derivative thereof. The ester compound can be used as an epoxy resin curing agent affording a cured article having low dielectric constant, low moisture absorption and sufficient heat resistance.

Abstract: A magnetic recording medium is prepared by forming on a plastic substrate, a nickel oxide underlayer having a plane (200) which is predominantly oriented in parallel with the surface of the plastic substrate, then forming on the nickel oxide underlayer at a substrate temperature of less 240° C., a cobalt-containing magnetite thin film having a plane (400) which is predominantly oriented in parallel with the surface of the plastic substrate, and finally oxidizing the cobalt-containing magnetite thin film in a plasma-activated oxygen atmosphere containing a rare gas at a substrate temperature of less than 240° C. while incorporating the rare gas into oxygen. This results in a cobalt-containing maghemite thin film as a perpendicular magnetic film having a spacing of a plane (400) of not more than 2.082 Å. The magnetic recording medium so produced is useful for high-density recording using a plastic substrate.

Abstract: The present invention provides a cover sheet for PTP which is not needed to be separated from the base material after use of PTP and is convenient in recycling and disposal after use and advantageous for environmental protection and which is excellent in push-through property. This cover sheet for PTP has a thickness of 0.01-1 mm and comprises a resin composition containing 5-250 parts by weight of an inorganic filler based on 100 parts by weight of a polyvinyl chloride based resin, the sheet having a bursting strength of 0.01-5 kg/cm2.

Abstract: An anti-icing blanket for preventing the accumulation of ice on aircraft surfaces due to cold soaked fuel disposed beneath the surface comprises a thermally insulative layer bonded to the aircraft surface and an erosion resistant layer disposed over the insulative layer.

Abstract: Inorganic phosphor particles having a diamond-like carbon coating and the method of making these particles. Inorganic phosphor particles are coated with a diamond-like carbon coating, which can include additive components. The coating is applied in a plasma reactor process.

Abstract: An abrasive article comprising a backing, a plurality of abrasive particles, a binder which adheres the abrasive particles to the backing, and a peripheral coat including an antiloading component is provided. The antiloading component is of the formula (CnH2n+1)—COO—M, wherein n is greater than 17 and M is selected from Group 1 of the Periodic Table, with the proviso that when M is lithium, n is greater than 21. The antiloading component can be included in a coated abrasive article, such as a lapping or structured abrasive article, and a nonwoven abrasive article.

Abstract: An anti-reflection film having high electrical conductivity and high anti-reflection effect over a wide frequency range despite its simplified structure. The anti-reflection film has two mutually neighboring layers which are deposited directly or via a hard coating layer on a supporting layer. A first layer of the layers that is closer to a supporting layer is formed of an electrically conductive material capable of absorbing light, while the remaining second layer is formed of a material having a refractive index not higher than 2.0. If the first layer has the refractive index and the extinction coefficient for a shorter wavelength &lgr;v of n v and k,v respectively, and the refractive index and the extinction coefficient for a longer wavelength &lgr;r of nr and kr, respectively, nv is larger than nr and kv is smaller than kr (nv>nr and kv<kr).

Abstract: A color exhibition structure comprising a number of minute granular substances dispersed in a transparent substance. The materials of the transparent and granular substances are selected in such a manner as to exhibit a visible color produced by reflection and scattering of a light incident on the color exhibition structure. Alternatively, the color exhibition structure may comprise a number of minute granular substances dispersed in at least one of first and second layers laminated alternatively. The materials of the first and second layers and the granular substances are selected in such a manner as to exhibit a visible color produced by reflection, interference and scattering of a light incident on the color exhibit structure.

Abstract: The present invention is a low-density polyethylene-lamellar silicate composite material, and a manufacturing method thereof.

Abstract: A protective coat formed by thermal spraying, and having an outstanding durability against corrosion by a molten light alloy. A thermal spraying composite material used to form such a coat contains from about 30 to about 70% by weight of molybdenum boride, from about 20 to about 40% by weight of nickel or cobalt, from about 5 to about 20% by weight of chromium, and from about 5 to about 10% by weight of at least one metal boride selected from the borides of Cr, W, Zr, Ni and Nb.

Abstract: A magnetic recording medium comprising: a plastic substrate; a nickel oxide underlayer formed on said substrate; and a cobalt-containing maghemite thin film formed on said nickel oxide underlayer, containing cobalt at a molar ratio of cobalt to iron of 0.01:1 to 0.1:1, and having either a spacing of a plane (311) of not more than 2.510 Å, a spacing of a plane (222) of not more than 2.415 Å or a spacing of a plane (220) of not more than 2.950 Å, a ratio value of an X-ray diffraction pattern peak intensity of either of the planes (311), (222) and (220) of said cobalt-containing maghemite thin film to an X-ray diffraction pattern peak intensity of the plane (400) thereof being more than 0.5. Such magnetic recording medium suitably applicable to existent magnetic recording systems using a ring-type magnetic head and capable of using a plastic substrate for providing a magnetic recording medium for high-density recording.

Abstract: A soldered product having secure reliable joints, without the use of flux, is disclosed. The soldered product includes a first member having a connected portion and a second member, also having a connected portion, facing the first member. The connected portions of the first and second members are electrically connected by a connecting material. A layer of hydrocarbon, including alkane, alkene or alkyne, is disposed around the periphery of the connecting material.

Abstract: Method for manufacturing a glass substrate with reduced glare wherein a suspension comprising sub-micron transparent oxide particles and a binder is coated on the substrate to form a film, whereafter the film is dried in such manner that in situ flocculation of the particles takes place. Said in-situ flocculation strongly reduces glare on the said surface.

Abstract: A hardened wooden flooring product is produced by impregnating wooden flooring blanks with a hardener while the wooden flooring blanks are in a bundle, wherein the bundled hardened wooden flooring blanks have improved separation characteristics following completion of the impregnation treatment. The flooring product is made by assembling a plurality of wooden flooring product blanks into a bundle of blanks in surface-to-surface contact with each other and enclosing the wooden flooring blanks in a pressure vessel. The pressure vessel is evacuated and an effective quantity of a hardening composition for being impregnated into the wooden flooring blanks is introduced into the pressure vessel. An effective quantity of a polyethylene glycol composition is introduced into the pressure vessel. The wooden flooring blanks are soaked in the hardening composition and the polyethylene glycol composition for a predetermined period of time.

Abstract: It has been observed that Si introduced into an Al metal line of an Al, Ti, and Si-containing layer stack of an integrated circuit, at concentrations uniformly less than the solid solubility of Si in Al, results in a reduction in Al metal line voiding. Such voiding is a stress induced phenomenon and the introduction of Si appears to reduce stresses in the Al metal lines. By controlling Ti deposition conditions to achieve desired thickness and grain-size characteristics of the Ti underlayer, a self-regulating filter for introduction of Si into the Al metal layer is provided. Si is introduced into the Al metal layer by migration through a suitably deposited Ti layer, rather than during Al layer deposition.

Abstract: A transparent electromagnetic radiation shield panel suitable for placement in front of a TV display device, particularly a large plasma display panel, or other such source of electromagnetic radiation to shield the viewer from electromagnetic radiation is provided, which transparent electromagnetic radiation shield material comprises a transparent electromagnetic radiation shield film, a transparent adhesive layer provided on an electromagnetic radiation shield layer of the film, and a display panel having the transparent electromagnetic radiation shield film laminated thereto via the transparent adhesive layer.

Abstract: A magnetic recording medium of the present invention comprises: a plastic substrate; and a cobalt-containing maghemite thin film formed on said substrate, containing cobalt at a molar ratio of cobalt to iron of not more than 0.06:1, and having either a spacing of a plane (311) of not more than 2.510 Å, a spacing of a plane (222) of not more than 2.415 Å or a spacing of a plane (220) of not more than 2.950 Å; and has a coercive force of not less than 2,000 Oe. Such magnetic recording medium suitably applicable to existent magnetic recording systems using a ring-type magnetic head and capable of using a plastic substrate for providing a magnetic recording medium for high-density recording.

Abstract: Provided is a composite sheet for food containers which comprises (A) an aroma proof resin layer comprising a saturated polyester resin, a polycarbonate resin and a copolymer comprising three components of bisphenol A, diphenyl carbonate and 1,10-decanedicarboxylic acid or a mixture of at least two of these three resins, (B) a polyamide resin layer, (C) a water vapor barrier resin layer, (D) a gas barrier resin layer and (E) a thermoplastic support resin layer, these layers being laminated in succession in order of A-B-C-D-E. This composite sheet for food container has remarkable aroma proof and low-temperature impact resistance with having the performances of synthetic resin containers having gas barrier properties and capable of being subjected to high-temperature sterilization.

Abstract: A security paper indicates exposure to a solvent by a solvent resistant color signal. A metal mordant dye first co-reactant and a mordant dye second co-reactant form an organic solvent-insoluble colored reaction product when the paper is washed with an organic solvent. The metal mordant dye first co-reactant and a mordant dye second co-reactant are chemically isolated from each other so as to prevent the coordinate covalent bond from forming until the paper is washed with an organic solvent. The chemical isolation can be effected by encapsulation or other physical separation of the co-reactants. The organic solvent-insoluble colored reaction product, once formed, remains entrapped in the web when the paper is washed with an organic solvent. The chemical isolation prevents the organic solvent-insoluble colored reaction product from forming upon the application of pressure alone to the paper.