Abstract: Method of inhibiting corrosion of blanket cylinders used in offset printing operations, in which zinc is applied to the surfaces of printing blankets which contact the blanket cylinders, by application of zinc powder to an adhesive layer, or by impregnating zinc particles into the surface of the printing blanket, or by weaving zinc threads into the material of the printing blanket, or by attaching zinc foil to the printing blanket; together with printing blankets so prepared. The zinc acts to inhibit electrochemical corrosion and rusting of the blanket cylinder steel, by virtue of the fact that zinc is a sacrificial metal which is more chemically active than the iron in the steel, and is therefore oxidized in lieu of the iron.

Abstract: A material for an indication label to be adhered to a rubber tire. The label is designed to be disposed on an unvulcanized raw rubber tire and then fixed to the finished tire by vulcanization using heat and pressure. The indication label having a label base material with a heat-resistant plastic film and an abrasive surface coating layer formed on the upper surface of the plastic film. The abrasive surface being composed of a hardened resin and filler. An indication defined by an ink layer is disposed on the abrasive surface. A rubber adhesive laminated on the lower surface of the plastic film adheres the label to the tire. The label is constructed by forming the ink layer on the exterior side of the abrasive surface coating layer. The abrasive surface having a profile and roughness for preserving the quality of the indication.

Abstract: A metallic regenerator seal is provided having multi-layer coating comprising a NiCrAlY bond layer, a yttria stabilized zirconia (YSZ) intermediate layer, and a ceramic high temperature solid lubricant surface layer comprising zinc oxide, calcium fluoride, and tin oxide. An array of discontinuous grooves is laser machined into the outer surface of the solid lubricant surface layer making the coating strain tolerant.

Abstract: A sealing tape for wrapping up a cable, in particular a communication cable or the like, to be extended through a cable passageway opening, for forming a seal between the cable and the cable passageway opening, has on its inner surface facing the cable a roughened surface area that excludes axial and circumferential displacement of the sealing tape relative to the cable under influence of intervening axial and torsional loads, thereby insuring anti-skid placing of the cable in the cable passageway opening.

Abstract: A thick aesthetic laminate surface layer is achieved by using pre-cured particulates of the impregnating resin along with an initial binder material and preferably also abrasion resistant mineral particles. The protective overcoating may be applied in a thick layer to give gouge resistance and a deep look. Because the impregnating resin and the pre-cured particulates have the same index of refraction, the transparency of the coating and the resultant clarity of the underlying decor sheet are excellent.

Abstract: The invention relates to a process for depositing a latex coating on an article made of elastomer,wherein a continuous layer of a hydrophilic inorganic pulverulent material is deposited at the surface of the elastomer and the said article is immersed in an aqueous latex suspension.The invention also relates to a composite article based on silicone elastomer comprising a latex coating, said composite article including a film made up of a hydrophilic inorganic pulverulent material at the interface between the silicone elastomer and the latex.

Abstract: An extruded plastic article includes an extruded elongated plastic frame member which has a front surface that is formed with a longitudinally extending convex projection, and a decorative plastic strip which has a rear face and a decorated front face with a metallic luster. The rear face of the decorative plastic strip is bonded to the plastic frame member at the convex projection.

Abstract: Electrically conductive elements on two substrates can be electrically interconnected by an adhesive tape containing electrically conductive equiax particles that are individually positioned in the adhesive layer in a predetermined pattern. Each particle is harder than the elements it is to interconnect, so that hand pressure causes the particles to penetrate into the elements, thus creating a reliable electrical connection. Particularly useful particles are glass beads having a metallic coating that is from 0.1 to 2 .mu.m thick.

Abstract: The invention relates to semicrystalline biorientated composite polyester films comprising a thick filled or unfilled layer and, on at least one of the faces of the layer (A), a coextruded polyester layer (B) whose thickness is less than that of the layer (A) and which has the following characteristics:Rt.ltoreq.3 .mu.mRt/Ra.ltoreq.10and contains a filler having the following characteristics:mean diameter D 50=1.5 to 2.5 .mu.mmonodispersity I=D 75-D 25.ltoreq.1.2These films can be used as protective sheets for the photopolymerizable layer of photopolymerizable elements.

Abstract: An aluminum object is manufactured by a process including chromate conversion coating of the aluminum object; sequentially applying a primer coat to the outer surface and thereafter applying a dielectric substrate basecoat; vacuum metallizing a corrosion prone metal, namely indium, on the dielectric substrate basecoat to form "islands" of the indium that are top coated with a clear resinous layer to encapsulate and insulate the islands, one from another. The indium islands are less than one thousand angstroms thick and have an average diameter of less than three thousand angstroms. The island structure is etched following the growth of the metal as it is deposited between the nucleation stage and the stage of channelization of formation of an electrically conductive film. The etchant is selected to clear channels between island structures to improve adhesion of a dielectric resinous top coat to the dielectric substrate by order of magnitude to adhesion to the islands.

Abstract: A method of making a thin, lightweight and flexible RF waffleline includes the production of a negative silicone casting from a relatively thick and rigid metal positive tooling plate having the identical matrix of the desired waffleline and product. The waffleline is formed by casting an epoxy resin on the silicone casting or nickel electroforming, following by metallization. The waffleline end products is either a very thin and flexible epoxy composite structure or a nickel electroform metallized with gold. Accordingly, a negative WMA image can now be cast, as opposed to expensive machining or forming, with relatively simple and inexpensive techniques in fabricating the process tooling.

Abstract: Ceramic materials to be insert-cast are disclosed, which each contain not less than 65% by volume of aluminum titanate as a crystalline phase, and have an average particle diameter of crystals thereof being not less than 10 .mu.m, Young's modulus of 50 to 2,000 kgf/mm.sup.2, compression strength of 5 to 40 kgf/mm.sup.2, and porosity of 5 to 35%. Ceramic port liners are also disclosed, which are free from cracking due to compression force during insert-casting, peeling-off during use, and facilitate insert-casting. To attain this, a reinforcement which meets either one or both of requirements that differences in coefficient of thermal expansion at 800.degree. C. and Young's modulus between the reinforcement and a material constituting the port liner body are in a range of .+-.0.1% and in a range of .+-.1,000 kgf/mm.sup.2, respectively, is filled into a depressed portion at an outer peripheral surface of the port liner body to form an integrated structure with a flat or swelled surface.

Abstract: A granular abrasive material is produced from a dispersion consisting of raw materials containing alumina, compounds containing silica and other additives. The dispersion is ground to a sinterable slip with a grain size of less than 1 micrometer. The slip is dried and may be pressed before being subjected to a multi-stage heating process to produce sintered corundum crystals.

Abstract: An article comprising a transparent plano-convex base sheet having first and second broad faces, the second face being substantially planar and the first face having an array of substantially hemi-spheroidal microlenses thereon, the shape of the microlenses and thickness of the base sheet being such that collimated light substantially orthogonally incident to the array is focused approximately at the second face. The article optionally further comprising a specularly reflective layer on the second face which renders the base sheet retroreflective. An optional layer of adhesive over the reflective layer permits the article to be adhered to a document as a tamper-indicating, authenticating, and protective overlay. Special images can be formed within the article to enhance the security provided thereby. Also, a method for forming such articles.

Abstract: Electrically conductive elements on two substrates can be electrically interconnected by an adhesive tape containing electrically conductive particles, most of which are substantially uniformly spaced from their six nearest neighbors. Preferably the particles are spherical and of substantially equal diameter slightly exceeding the thickness of the adhesive layer. The adhesive tape can be made by forming a dense monolayer of the particles, covering a stretchable adhesive layer with that dense monolayer, biaxially stretching the adhesive layer to separate each particle from other particles of the monolayer, and then embedding the particles either into that adhesive layer or into the adhesive layer of another tape.

Abstract: An abrasive film is disclosed, which comprises a film substrate having an abrasive layer on at least one side thereof, wherein said abrasive layer comprises abradant particles uniformly dispersed in at least one binder selected from water-soluble macromolecular substances and water-dispersible macromolecular substances, and a method for the production thereof is disclosed, which comprises: applying to at least one side of a film substrate a coating liquid, which is prepared by dispersing the abradant into an aqueous medium containing at least one binder selected from water-soluble macromolecular substances and water-dispersible macromolecular substances; or prepared by mixing the abradant and at least one binder selected from water-soluble macromolecular substances and water-dispersible macromolecular substances with an aqueous medium, and then drying the coated abrasive layer by heating.

Abstract: Planar casting with a regularly textured surface on at least one side. A self-supporting planar casting made of polymer material and a process to produce the same are described. The planar casting contains at least one inert additive in an amount in the range of 0.001 to 5% by weight. At least one of it surfaces made from polymer forming the casting is textured by regularly arranged elevations in predominantly longitudinal and transverse direction of largely uniform configuration having a ratio of minimum diameter (d.sub.min) to maximum diameter (d.sub.max) in the range of ##EQU1## an average diameter (d.sub.m) of ##EQU2## in the range of 10 to 800 .mu.m. The elevations having a height in the range of 0.01 to 15 .mu.m.

Abstract: This invention relates to corrugated roofing sheets for building, made of a mixture of cement and inert materials, reinforced with synthetic fibers in fibrillated mesh form, characterized by having a rough outer surface due to the presence of surface granular material. The granular material is applied to the sheets during their finishing but before the cement has started to set, by simply strewing it over the sheet surface.

Abstract: A pressure-sensitive adhesive tape or sheet is reliably repositionable by having a plurality of spaced clumps of particles uniformly distributed over at least one surface of the pressure-sensitive adhesive layer with the tips of the clumps of particles being substantially free from adhesive, which particles are smaller than the thickness of the pressure-sensitive adhesive layer. Preferred particles are glass beads which may be from 5 to 15 .mu.m in diameter when the thickness of the pressure-sensitive adhesive layer is about 25 .mu.m. Each clump preferably contains from 5 to about 100 particles. The pressure-sensitive adhesive layer can be covered with a carrier web which has a low adhesion surface that is formed with depressions that protect the clumps of particles.

Abstract: An edhesive tape has a flexible carrier web that has a low-adhesion face formed with a predetermined pattern of dimples, each of which contains a plurality of electrically conductive particles that can either be loose or bound together into clusters by a binder. An adhesive layer covers said face and deposited particles and can be a pressure-sensitive adhesive or a heat-activatable adhesive. When the adhesive layer is separated from the carrier web, it carries along the particles. When the particle-bearing adhesive layer is used to bond together two arrays of electrodes, facing pairs of the electrodes are electrically interconnected either by single particles or by clusters of the particles. When a binder is used to bind the electrically conductive particles into clusters, the binder can add to the strength of the adhesive bond between the electrode-bearing surfaces.

Abstract: A waterproof sheet used to waterproof structures has a single layer of non-degradable, water impermeable polymeric membrane that has layers of particles of non-hydrated sodium montmorillonite (sodium bentonite) adhering to the membrane in a uniform layered thickness. The layers of particles of sodium montmorillonite spaced from the membrane adhere to each other, with a coating material (adhesive) that is designed to provide the necessary performance for waterproofing. A water soluble dye is provided in the layer of particles so if a tear occurs in the impermeable membrane and water contacts the particles, the dye will stain the membrane and mark the location of the tear.

Abstract: A magneto-optical recording element comprises(A) an optically transparent dimensionally stable substrate and(B) a thermally alterable recording layer which contains an amorphous lanthanide/transition metal alloy and, at least on the side facing away from the substrate (A), has a 0.1-20 nm thick surface zone containing one or more of the substances carbon, oxygen and nitrogen.

Abstract: An electroconductive element comprising a support, a subbing layer, and an electroconductive layer, wherein the electroconductive layer is formed by coating, on the subbing layer, a solution comprising:(A) a compound semiconductor,(B) a solvent dissolving the compound semiconductor, and(C) a resin or a resin precursor soluble in the solvent.

Abstract: A composite roof structure, and a corresponding method of fabricating the structure, are disclosed which includes use of a layer of adhesive material (preferably a foamed, cellular adhesive such as polyurethane) along with a flexible membrane including a rubber-like sheet having a fleece-like matting secured to the underside thereof. The adhesive is preferably sprayed onto a roof substrate and prior to complete solidification thereof the membrane is pressed into the adhesive so that the matting becomes embedded therein.

Abstract: A coated substrate in which the coating includes abrasion-resistant particles protruding from the hardened surface of a metal matrix and is bonded to the substrate.

Abstract: A coated abrasive article comprising a backing bearing on one major surface thereof a layer of abrasive grains overcoated with a loading resistant coating and on the other major surface thereof a layer of pressure-sensitive adhesive. The loading resistant coating comprises a lithium salt of a fatty acid. It may also contain additives selected from the group consisting of surfactants, wetting agents, binders, anti-foaming agents, fillers, plasticizers, and mixtures thereof. The use of a lithium salt of a fatty acid significantly reduces the amount of transfer between the loading resistant coating of a first coated abrasive article and the pressure-sensitive adhesive layer of a second coated abrasive article disposed within a package.

Abstract: A biaxially oriented polyester film suited as a substrate for magnetic recording media. The film comprises a polyester and inert particles and has at least one surface with protrusions formed by the existence of the inert particles. The surface has a parameter of surface topography .sqroot.(.beta./.sigma.) of 0.1 to 0.7. The average distance between adjacent protrusions is not more than 20 um and the coefficient of friction of the surface and the parameter of surface topography satisfies the following equations (1) and (2): ##EQU1## wherein y is the coefficient of friction, .beta. is mean flatness of protrusions and .sigma. is standard deviation of height distribution of protrusions.

Abstract: A skid-resistant pavement marking sheet including a top surface and a plurality of skid-resistant ceramic spheroids embedded in and protruding from the surface. The ceramic spheroids are fired from a raw material mixture including 10-97 wt. % mineral particulates, 3-90 wt. % alumina, and at least 1 wt. % binder, at a temperature of about 1300.degree. C., have an outer surface rich in alumina concentration relative to the center of the spheroid, and are resistant to crushing and fracturing.

Abstract: The present invention provides a two layered refractory plate consisting of a crack-resistant substrate with a grained surface layer embedded thereon. This two layered refractory plate is suitable for use as a shelf plate in a furnace in which the temperatures vary. Cracks due to thermal expansion differences in the material can be prevented.

Abstract: Disclosed is an aluminum nitride circuit board which is advantageously used as a carrier for a part emitting a large volume of heat, the substrate of the circuit board is a sintered aluminum nitride substrate which comprises a basal part and projection rising from the basal part and offering a surface for application of a metallizing composition, a metallized layer thereof is formed on the upper side of the projection by applying the metallizing composition thereon and forming the applied layer of the composition by firing, the metallizing composition applied on the upper side of the projection is prevented from sagging down the lateral side of the basal part owing to the step formed with the projection and the basal part, the preclusion of the otherwise inevitable sagging of the composition contributes greatly to improving the circuit board's voltage withstanding property.

Abstract: In a process for thermally spraying molten metal onto an uncured resin, to prevent some of the sprayed metal particles from being engulfed in the still wet or uncured resin layer, the resin layer is filled with micron sized beads, filler and/or spheres. The spheres or beads or other filling of the resin prevents the impacting metal particles from being engulfed but still allows the metal particles to imbed in the uncured resin surface to achieve a strong mechanical bond when the resin cures.

Abstract: Decorative laminate having improved resistance against marring, abrasion, staining and crocking, and method for the preparation thereof, the laminate comprising a substrate and a decorative sheet, the decorative sheet having on the exposed surface a layer consisting essentially of a thermoset resin, substantially fully hydrolyzed polyvinyl alcohol, fumed amorphous silica, and particulate abrasive material having a hardness higher than that of silica. Abrasion resistance greater than 3000 cycles (NEMA Wear) by the NEMA test LD 3-3.01 is obtained in combination with improved mar resistance.

Abstract: A coated substrate in which the coating includes abrasion-resistant particles protruding from the hardened surface of a metal matrix and is bonded to the substrate.

Abstract: A magnetic recording medium comprising a substrate and, as a recording layer, a ferromagnetic metal thin layer formed on the substrate by deposition, in which the ferromagnetic metal thin layer contains oxygen atom in such a manner that concentrations of oxygen atom in a surface layer and an interfacial layer adjacent to the substrate are higher than that in an intermediate layer between the surface and interfacial layers, which has improved coercive force and smaller magnetic domain.

Abstract: Aluminum alloys suitable for fabrication into plate and fin type heat exchangers are subjected to a chemical etching procedure in order to improve the heat transfer efficiency thereof. Applicants have found that a high temperature heat treatment of an aluminum alloy plate material to produce a precipitate, followed by exposure to an etching composition, results in a heat exchanger surface modified by the formation of pits. The heat exchangers so modified may be advantageously used in the reboiler/condensor section of air separation units.

Abstract: A pulley composed of a composite material in which hard particles are dispersed in a matrix material, in which a part of the hard particles is exposed to the outside by removal of the matrix material at the pulley surface.

Abstract: A waterproofing strip used to seal interfacing surfaces of building components has a single layer of a non-degradable, water impermeable polymeric membrane that has layers of particles of non-hydrated sodium montmorillonite (sodium bentonite) adhering to walls of the opposite surfaces thereof. The strip is placed between or across interfacing surfaces of two building components to prevent water migration.

Abstract: Procedure for making Al.sub.2 O.sub.3 spheroids, 600 micrometers in diameter or less, utilizes an AlOOH sol containing 0.25% weight percent MgO (in the form of Mg(NO.sub.3).sub.2 .multidot.6H.sub.2 O) and HNO.sub.3. The sol is dispersed into droplets in a particle forming fluid (e.g., 2-ethylhexanol) where gelling occurs. The gelled spheroids are collected, dried and pre-fired in air at temperatures less than 1,200.degree. C. for up to about 12 hours. The dried and prefired beads are fired in a 2-step process at temperatures of about 1,850-1,950.degree. C. in the following sequence:a first dry oxygen firing for about ten minutes, followed by a wet hydrogen firing for up to 350 minutes. Reasonably transparent microspheres having crystallites in the range of 5-100 micrometers are obtained with little intergranular porosity, and their density is estimated to be near theoretical.

Abstract: A method of arresting delamination between and within plies of a composite laminate having layers containing a resin without significantly degrading the structural strength of the laminate characterized by emplacing within a plurality of the laminate layers having a resin, at a plurality of respective discrete locations, narrow strips of a tough adhesive having a fracture toughness greater than the fracture toughness of the resin in the respective layers of laminate. The adhesive has a Mode I critical strain energy release rate in the range of 5 inch pounds per square inch or more; for example, about 10 inch pounds per square inch. Also disclosed is a preferred method of constructing the laminate to employ this invention.

Abstract: A magnetic recording medium having a magnetic layer on one side of a support and a backcoat on the other side containing a non-magnetic powder and a binder resin is disclosed. The non-magnetic powder comprises particles having an average size greater than 0.5 .mu.m and smaller than 2.0 .mu.m and a maximum size of not more than 5 .mu.m.

Abstract: A magnetic recording medium comprising a substrate, a magnetic layer formed on at least one surface of the substrate and a lubricant layer comprising at least two components substantially incompatible with each other, coated on the surface of the magnetic layer, forming a like structure, which has improved abrasion resistance, durability and running stability.

Abstract: A magnetic recording medium is described, comprising a non-magnetic support having coated thereon a non-magnetic layer and a magnetic layer in that order, with the surface roughness of the surface of the support on the side opposite from the magnetic layer being 0.007 .mu.m or more, and the non-magnetic layer being provided by coating and radiation-exposing a compound that is polymerizable by radiation exposure.

Abstract: Disclosed herein is a magnetic recording medium comprising a biaxially oriented polyester film having an extremely low surface roughness and containing fine particles and specific higher aliphatic carboxylic acids and/or derivatives thereof, and a magnetic layer formed on one side of the polyester film.The magnetic recording medium exhibits a stable travelling nature even when it is not provided with a back coat layer, and is usable as a high-quality and high-density magnetic recording medium.

Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.

Abstract: There is disclosed a polyester film suitable for use in magnetic tapes having the characteristics represented by the following equations: ##EQU1## wherein N.sub.1 is the number of peaks of surface projections per millimeter;h is the average height in .mu.m of the surface projections;.theta. is the average steepness in degree of the surface projections;H.sup.2 is the mean square height in .mu.m.sup.2 of the surface projections; andn is the average refractive index.

Abstract: Optical recording media for recording and retrieval of information by means of high energy radiation, which media consist essentially of a polymeric base having uniaxial orientation and, applied on this, a metal film of high reflectivity having the orientation of the crystallites corresponding to the orientation of the base and retrieval of information are effected by means of high energy radiation.

Abstract: Disclosed is a magnetic recording medium comprising a non-magnetic support having provided thereon a ferromagnetic metal thin film provided with a layer containing a compound having a mercapto group. This layer may also contain an ester bond. The magnetic recording medium shows improved running properties and wear resistance over wide ranges of temperature and humidity.

Abstract: Electronic parts comprising ceramic substrate and electrode layer provided onto the substrate in which a micro-granular ceramic powder is dispersed substantially only inside of the electrode layer. A process for the manufacture of the same is also disclosed.

Abstract: A magnetic recording medium is disclosed comprising a non-magnetic base plate, a magnetic layer formed on said plate, a protective layer comprising silicon dioxide formed on said protective layer, and a lubricant layer comprising amorphous carbon formed on said protective layer. The magnetic recording medium is simple to manufacture and has good CSS resistance, sparing absorptivity and high corrosion resistance.

Abstract: A flexible magnetic disk in which the friction between the magnetic sheet of the disk and a positioning member is reduced, the magnetic sheet is positioned properly and without offset each time it is loaded in a reading/reproducing device, and the tracking accuracy and dimensional accuracy are satisfactory. A protective layer is provided around the periphery of a central hole in the magnetic sheet. The protective layer is made of a composition containing a compound which has an acrylic or methacrylic acid ester bond at one or both of a main chain terminal and a side chain thereof. The compound is one which is cured by radiation. The thickness of the protective layer should be 30 microns or less, and the surface irregularity of the protective layer should be 0.03 microns or more represented in terms of a central line average roughness at a cutoff of 2.5 mm.