Abstract: A friction member having a high frictional force, a small frictional force fluctuation and excellent wear resistance, which is composed of a substrate coated with a friction material comprising a phenolic resin, 5 to 20% by weight, based on the weight of the friction material, of at least one heat-resistant fiber selected from the group consisting of carbon fiber and aromatic polyamide fiber, 10 to 50% by weight, based on the weight of the friction material, of a solid lubricant and 5 to 30% by weight, based on the weight of the friction material, of at least one wear resistant material selected from the group consisting of Al.sub.2 O.sub.3, SiC and Si.sub.3 N.sub.4, and if necessary, 5 to 20% by weight, based on the weight of the friction material, of at least one soft organic compond selected from the group consisting of a fluorine-containing organic compound and a silicon-containing organic compound.

Abstract: A magnetic multilayer film having magnetoresistance (MR) is prepared by depositing at least two magnetic thin films having different coercive forces while interposing a non-magnetic thin film therebetween. A first magnetic thin film having a lower coercive force has a squareness ratio SQ.sub.1 of 0.01-0.5, an anisotropic magnetic field Hk of 1-20 Oe, and a thickness t.sub.1, a second magnetic thin film having a higher coercive force has a squareness ratio SQ.sub.2 of 0.7-1.0 and a thickness t.sub.2 .ltoreq.t.sub.1, and the non-magnetic thin film has a thickness t.sub.3 .ltoreq.200 .ANG.. A first preferred form requires 4 .ANG..ltoreq.t.sub.2 <30 .ANG. and 6 .ANG..ltoreq.t.sub.1 .ltoreq.200 .ANG.. A second preferred form requires 4 .ANG..ltoreq.t.sub.2 <20 .ANG. and 10 .ANG..ltoreq.t.sub.1 <20 .ANG.. A third preferred form requires 4 .ANG..ltoreq.t.sub.2 <30 .ANG. and 6 .ANG..ltoreq.t.sub.1 .ltoreq.40 .ANG..

Abstract: A magnetic tape for the recording of digital video signals is constituted by a nonmagnetic base having thereon a magnetic layer of at least one thin magnetic metal film which has an energy product of at least 100 G.cm.Oe, and with the surface roughness of the magnetic tape being at most 0.003 .mu.m in center line average height. Such tape, when used with magnetic heads each having a gap defined between portions of the respective head having a saturation magnetic flux density of at least 14 kG., contribute to the maintenance of an acceptable raw error bit rate below 1.times.10.sup.-4 when recording with a recorded bit area of no more than 1.25 .mu.m.sup.2 /bit.

Abstract: A polymer-modified rubber composition is formed by blending together about 5% to about 60% vulcanized styrene-butadiene rubber crumb; about 5% to about 60% uncured rubber; about 5% to about 30% styrene-based thermoplastic resin; about 1% to about 10% homogenizing agent adapted to facilitate blending of aromatic-based with non aromatic-based polymers; and about 1% to about 10% curing agent for the uncured rubber; to form a blend wherein the thermoplastic resin (c) is substantially homogeneously blended with the rubbers (a) and (b). All major components of the composition may be derived from the post industrial and post consumer waste stream. The compositions have excellent physical properties, especially stiffness and stiffness retention at elevated temperatures.

Abstract: A magnetic multilayer film having magnetoresistance (MR) is prepared by depositing at least two magnetic thin films having different coercive forces while interposing a non-magnetic thin film therebetween. A first magnetic thin film having a lower coercive force has a squareness ratio SQ.sub.1 and a thickness t.sub.1, a second magnetic thin film having a higher coercive force has a squareness ratio SQ.sub.2 and a thickness t.sub.2, and the non-magnetic thin film has a thickness t.sub.3. A first form of the invention requires 4 .ANG..ltoreq.t.sub.2 <30 .ANG., 20 .ANG.<t.sub.1 .ltoreq.200 .ANG., t.sub.1 >t.sub.2, t.sub.3 .ltoreq.200 .ANG., 0.7.ltoreq.SQ.sub.1 .ltoreq.1.0, and 0.1.ltoreq.SQ.sub.2 .ltoreq.0.8, thereby achieving a magnetic multilayer film which shows a great MR ratio of several percents under an external magnetic field of several Oe, an excellent rise across zero magnetic field and heat resistance. A second form of the invention requires 4 .ANG.<t.sub.2 <20 .ANG., 5 .ANG.<t.sub.

Abstract: A rubber-laminated metallic plate having a good resistance to an antifreezing fluid comprises a metallic plate, a primer layer comprising phenol resin and an NBR compound, formed on at least one side of the metallic plate, and a vulcanized rubber layer comprising the NBR compound, formed on the primer layer, where the NBR compound for forming the primer layer and the vulcanized rubber layer comprises NBR, at least 20% by weight of a white filler on the basis of the NBR, carbon black, zinc oxide and an organic peroxide.

Abstract: A particulate filled fluoropolymeric matrix composite article and method of making the same is presented. Preferably, the article comprises an electrical substrate material. The method for making the particulate filled polymeric matrix composite film includes mixing a polymeric matrix material with a dispersion of particulate filler in a carrier liquid to form a casting composition and adjusting the viscosity of the casting composition to retard separation of the particulate filler from the composition. A layer of the viscosity-adjusted casting composition is cast on a substrate and the layer is consolidated to form the particulate filled polymer matrix composite film. Films made by the method include very thin, e.g less than 1.0 mil, fluoropolymeric matrix films highly filled with very small diameter, preferably spherical, particles for use as, e.g. dielectric substrate materials in laminar electrical circuits.

Abstract: The present invention is directed to a process for treating an isocyanate distillation residue comprising(a) mixing acidified water with an organic material selected from limonene, limonene oxide, menthoxyacetic acid, menthyl chloroformate, and .gamma.-terpinene to form a first mixture;(b) mixing an isocyanate distillation residue with the mixture of step (a) to form a second mixture; and(c) stirring the mixture of step (b) until the pH of the mixture is about 7.

Abstract: Paperboard packaging for non-refrigerated liquid products and for dry products contains a buried polyvinyl alcohol copolymer (PVOH) barrier layer which has a low oxygen permeability particularly at low relative humidity, and outer heat-sealable surfaces which provide good resistance to moisture penetration and a means for fabricating the packaging.

Abstract: An overwritable magneto-optical recording medium is disclosed. The recording medium comprises a first magnetic layer exhibiting vertical magnetic anisotropy and a second magnetic layer having a higher Curie temperature and a lower coercive force at room temperature in comparison with the first magnetic layer and exchange coupled with the first magnetic layer, wherein the second magnetic layer exhibits in-plane magnetic anisotropy and vertical magnetic anisotropy at room temperature and the vertical magnetic anisotropy relative to the in-plane magnetic anisotropy becomes larger in the vicinity of the Curie temperature of the first magnetic layer than at room temperature.Further, a recording method using the magneto-optical recording medium is also disclosed.

Abstract: Heat distortion temperature of polyvinyl chloride compositions can be significantly increased above the heat distortion temperature of uncompounded polyvinyl chloride while good appearance of extruded material is preserved by preblending an imidized acrylic resin having a glass transition temperature above 130.degree. C. with a third polymer melt-processable throughout the temperature range of 150.degree.-300.degree. C. under conditions where a two-phase blend is formed, wherein the third polymer forms the continuous phase and the imidized acrylic resin forms the dispersed phase and then melt-blending the two-phase blend with polyvinyl chloride at a temperature of 150.degree.-220.degree. C. to form a composition in which the imidized acrylic resin forms a substantially homogeneous blend with polyvinyl chloride.

Abstract: A copper film coated substrate includes a substrate and a copper film formed on a surface of the substrate. The copper film has an X-ray diffraction intensity of 2.0 cps/nm or more per unit film thickness at a crystal orientation (111) face of the copper film. A crystal orientation of a copper thin film is controlled by irradiating a surface of a substrate with inert gas ions before forming a copper thin film on the substrate by a physical vapor deposition process. A copper thin film is formed by irradiating a surface of a substrate with ions, and depositing a copper thin film on the irradiated substrate. In the ion irradiating step, an ion irradiation energy for a dosage of the irradiated ions is controlled, so that crystal is greatly grown to be orientated in a direction of copper (111) face with a less dosage of the irradiated ions.

Abstract: Hollow microspheres produced by the present method each have a hollow interior evacuated of gases to a predetermined pressure. A reflective material layer coats the exterior of each microsphere and, optionally, an outer layer of a protective material is applied over the reflective material layer. Permeant gases are dissolved into glass or plastic frit particles prior to heating of the frit particles to form hollow microspheres having the permeant gases contained therein. The permeant gases are subsequently out-permeated in a non-permeant gas atmosphere to substantially evacuate the interior of each microsphere. The exterior layers of reflective material and protective material are then coated about each evacuated microsphere.

Abstract: Stable electron acceptor compositions are composed of a plurality of pillared metal complexes disposed on a supporting substrate. At least one Group VIII metal at zero valence is entrapped within this matrix. The complexes comprise from one to about 100 units of the formula:--(Y.sup.1 O.sub.3 --Z--Y.sup.2 O.sub.3)Me.sup.1 --Y.sup.1 and Y.sup.2 being phosphorus or arsenic; Z being a divalent group which reversibly forms a stable reduced form and contains two conjugated cationic centers having a negative E.degree..sub.red value; and Me.sup.1 being a trivalent or tetravalent metal of Group III, IVA, or IVB having an atomic number of at least 21 or a lanthanide. The units are bound to the substrate through a divalent linking group. Counter anions balance the charge of Z. The compositions can be used in the decomposition of water to yield hydrogen gas, the sensing of oxygen, and as catalysts.

Abstract: A magnetic recording medium having good characteristics over all recording wavelength regions, comprising a non-magnetic support having thereon a magnetic layer mainly comprising a tabular ferromagnetic hexagonal ferrite particle and a binder, wherein said ferromagnetic hexagonal ferrite powder is magnetically orientated in the longitudinal direction of the medium, and said magnetic layer has a glossiness in the longitudinal direction of the medium of 200% or more and at least 3% higher than that in the width direction of the medium.

Abstract: Multilayered extruded thermoplastic profiles are disclosed. The profiles are useful for decorative extruded louvers exhibiting a polished metal-look. The metal-look is achieved by the use of a limited amount of powdered aluminum metal having particle size of 50 microns or less, combined with an effective amount of nacreous pigment. The invention provides a multi-layer extrudate having the appearance of polished metal in the appearance layer in combination with an opaque or clear base layer. The preferred embodiment is a co-extruded polyvinyl chloride.Preferably, the appearance layer comprises 100 weight parts of rigid polyvinyl chloride as the thermoplastic matrix, a combination of from 0.05 to about 4 parts by weight of aluminum particles having an average particle size of from 10-40 microns, from 0.1 to 5 weight parts of titanium dioxide coated mica pigment or colored version thereof, and optional organic or inorganic coloring pigment(s).

Abstract: Carbon-based polymer substrates such as polyesters are antireflected by applying to the substrates one or more discontinuous layers of inorganic metal compounds having an index of refraction greater than that of the substrates.

Abstract: A high-density recording media comprising longitudinally oriented polycrystalline barium ferrite exhibits large coercivity, corrosion resistance, high hardness and durability. Films are prepared by on-axis sputtering at ambient temperatures from stoichiometric targets followed by a post-deposition anneal at approximately 850.degree.C. to induce crystallization. Crystallization yields a magnetic film with large in-plane remanence and a fine scale texturing that greatly improves the tribological performance of barium ferrite disks. Exceptional durability can be achieved on disks without overcoats. Grain sizes as small as 200 .ANG. are produced by doping with small amounts of Cr.sub.2 O.sub.3 or other additives. Coercivities greater than 4000 Oe are achieved even in small grain films.

Abstract: A method for making an environmentally stable, fiber reinforced ceramic matrix composite member includes use as a bonding agent of a ceramic precursor which transforms upon heating to a ceramic phase. The ceramic phase bonds together discontinuous material comprising ceramic particles, and reinforcing fibers at a relatively low processing temperature.

Abstract: A packaging laminate which includes a layer of polymethylpentene film and a sealant film. The films may be bonded by corona treatment. The laminate displays high oxygen transmission and heat resistance and may be used as a packaging material for produce such as cauliflower, broccoli and lettuce.