Abstract: A graphite separator plate for an electrochemical cell stack is formed from component parts which are joined together edge to edge. The edges of the plates are scarfed to increase the bond area and a heat activated fluoropolymer adhesive is used to bond adjacent plates together. This allows production of plates with a larger surface areas thereby improving the economics of the cell stack.

Abstract: Retroreflective sheeting has been improved by a coating comprising silica and a transparent polymer selected from aliphatic polyurethanes and polyvinyl chloride copolymers having a minor amount of a comonomer containing at least one carboxylic acid or hydroxyl moiety. Silica comprises 10-80 weight percent of the transparent protective coating. For example, a solution or dispersion of polyurethane is mixed with a silica sol and possibly other ingredients (e.g. wetting agent, UV light absorber and adhesion promoter), and the composition is coated onto the retroreflective sheet and dried. The coated retroreflective sheeting has superior soil and dew repellancy, retaining a higher percentage of original brightness after exposure to dirt and/or dew conditions.

Abstract: A wear-resistant coating of a cutting tool has at least a single layer of an interstitial phase which comprises alloying components and a non-metallic component the content of which falls within the boundaries of a region wherein a compound of this interstitial phase having the greatest thermodynamic stability is homogeneous. One of the alloying components functions as a catalyst which facilitates the compound with the high thermodynamic stability to form. A method of applying the wear-resistant coating to a cutting tool provides for condensing matter by virtue of ion bombardment and consists in introducing the catalyst into a vacuum by evaporating the material of a cathode and depositing a layer of coating on the base material of the cutting tool at a temperature thereof which permits a catalytic reaction to take place owing whereto the content of the non-metallic component falls within the boundaries of a region wherein the compound with the highest thermodynamic stability is homogeneous.

Abstract: A tubular article with circumferential projections having radial or chordal corrugations. The chords have tooth-like formations or are parallel and directed vertically in underground installation. In the last case, the sides of the tube can be devoid of the corrugations, or have them radially or tooth-like. Furthermore, the projections can be skewed and alternating in the opposite directions. Also, the projections can have offset planes. Finally, in case of two corrugations, they are diametrically opposed in a single chordal direction and are represented by rings bent parallel to the applicable load which is adverse with thus prestressed projections.

Abstract: A multilayered ceramic (MLC) substrate having embedded and exposed conductors suitable for mounting and interconnecting a plurality of electronic devices exterior thereof. The horizontal planar conductors comprise substantially a plurality of solid, non-porous, homogeneous metal patterns, whereas the vertical interplanar connection conductors are substantially porous metal conductors that are formed by methods such as screening. The process to form the MLC substrate involves forming a pattern of solid, nonporous conductors to a backing sheet having a release layer, then transferring the pattern to a ceramic green sheet. Zero X-Y shrinkage sintering processes allow the MLC substrate and solid metal conductors to be densified without distortion of the solid metal patterns or the ceramic.

Abstract: The invention relates to a metal ribbon and a method of manufacturing same, in which a layer or track of magnesium oxide is provided on the metal ribbon by decomposition of magnesium alcoholate which is provided by means of a dosing system which is sealed from the air. A sinusoidal information track of magnesium oxide is preferably used. A layer of silicon oxide to be manufactured by thermal decomposition of a liquid silicon compound may be used instead of magnesium oxide.A magnet core which is formed by winding the metal ribbon succeeded by impregnation with epoxy resin is particularly suitable for use at high frequency because interlaminar eddy currents are suppressed.

Abstract: A cardboard container with anti-slip property is disclosed. It has a synthetic resin layer formed of thermoplastic synthetic resin fine hollow particles of 5 to 50 microns in diameter containing one or more of an inert gas, an active gas, a nonvolatile liquid and a volatile liquid coupled by a synthetic resin component exhibiting an action of a binder. The synthetic resin layer is formed on the outer surface of at least one of bottom and upper walls of the container on the entire surface or a portion of the surface as a spot, a lattice or a stripe. Thus, particular means are not necessary to handle the cardboard container such as packing with a film or binding with bands after stacking a plurality of containers. The anti-slipping effect remains even after the stacked containers are sorted and transferred.

Abstract: A radiation image storage panel having a stimulable phosphor layer provided on a substrate with a honeycomb structure constituted of a number of cells partitioned by wall members filled with the stimulable phosphor is prepared by forming the substrate for phosphor layer by casting in a mother mold or etching of the substrate and filling the cells on the substrate with the stimulable phosphor. This radiation image storage panel can give images of markedly improved sharpness.

Abstract: The present direct invention is directed to a sealing glass composite comprising a low melting point sealing glass matrix mixed with a particulate additive to increase the effective coefficient of thermal expansion of the resulting sealing glass composite. The sealing glass matrix is in the lead borate family and the particulate additive is preferably calcium fluoride. For extreme bonding conditions, a small amount of copper oxide is dissolved into the glass matrix.

Abstract: A dielectric composition comprising an admixture of finely divided solids comprising (a) a noncrystallizable glass of which the deformation temperature (T.sub.d) is 580.degree.-625.degree. C. and the softening point (T.sub.s) is 630.degree.-700.degree. C., and (T.sub.s -T.sub.d) is 50.degree.-75.degree. C., and (b) a refractory which is substantially insoluble in the glass at temperatures of 825.degree.-900.degree. C.

Abstract: High photo resolution of over 100 lines is obtained for solder masks of thicknesses greater than 0.002 in. (0.005 cm) with liquid photopolymers of special compositions deposited from mesh screens over printed wiring board traces and photoexposed with a phototool image in contact with the photopolymer. Special interrelated properties of the liquid photopolymer interacting in an explicit process of screen depositing two adjacent liquid polymer layers include freedom from volatiles, a paste-like viscosity permitting use with mesh screens of about 60 mesh to obtain a uniform thickness layer free of bubbles and mesh marks, solder mask insulator and heat resistance characteristics, an ability to photo flash through a phototool image in contact with one layer surface and the other surface exposed to air to polymerize through a significant thickness of about one-third of the layer thickness, photo response to polymerize to a depth of about 0.02 in. (0.

Abstract: An electrostatic recording material comprising a substrate treated for low electric resistance and a dielectric layer formed on the substrate and composed of a composition comprising an insulating resin having a volume specific resistance of at least 10.sup.12 .OMEGA.cm and a powder of an acrylonitrile-type polymer having a copolymerized acrylonitrile content of at least 95% by weight and containing substantially no ionic groups, said powder having a volume average particle size of from 1.5 to 4 .mu.m and a content of particles having a size exceeding 8 .mu.m as measured by a particle size distribution measuring apparatus, being at most 0.02% by number.

Abstract: A first conductor layer made of a thick film conductor is formed with a predetermined pattern on a substrate. A thick film resistor is then formed to be connected to the first conductor layer. An insulating layer made of a polyimide resin is formed over the substrate, the first conductor layer and the thick film resistor with through holes on the first conductor layer. Then, plating is applied to the whole surface of the insulating layer, the wall surfaces of the through holes and the exposed portions of the first conductor layer and etching is applied thereto with a predetermined pattern so that a second conductor layer is formed.

Abstract: There is disclosed a thermal transfer recording medium having a colorant layer containing a heat-fusible substance and a colorant formed on a support, the colorant comprising a copolymer obtained from an ethylene, an acrylic acid derivative represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group and R.sup.2 represents a straight or branched alkyl group having 1 to 8 carbon atoms,and a maleic anhydride, and may further contain polyoxyethylene type compound.

Abstract: A heat resistant printed circuit board is disclosed which comprises a laminate of:(A) a thin-walled body having a thickness of from 0.2 .mu.m to less than 5 mm and containing a cross-linked product of a mixture of (a) 1 to 99 wt. % of an ethylenic copolymer (A) comprised of 30 to 99.5 wt. % of ethylene, and an oxirane ring-containing compound having at least one double bond and having 6 to 30 carbon atoms, and (b) 99 to 1 wt. % of an ethylenic copolymer (B) comprised of 30 to 99.5 wt. % of ethylene, and a comonomer selected from the group consisting of unsaturated monocarboxylic acids, unsaturated dicarboxylic acids, unsaturated dicarboxylic acid anhydrides, and half esters of unsaturated dicarboxylic acids; and(B) an electrically conductive metal layer having a thickness of from 100 .ANG. to 400 .mu.m.The boards have excellent heat resistance, electrical insulating properties, flexibility, chemical resistance, dimensional stability, etc.

Abstract: A method for coating a conductive surface with an organic coating where one discrete area of the organic coating is coated onto the surface in an image pattern by conventional means and another discrete area of the organic coating is electrophoretically deposited onto the surface. The process is useful for diverse applications including the fabrication of printed circuit boards.

Abstract: In a thermoplastic polyester, a compound having at least two ethylenically unsaturated groups and/or oxirane rings in one molecule is coated as a crosslinking agent on the outer surface of the polyester substrate, or a polyester composition containing this crosslinking agent is laminated on the polyester substrate as the inner surface layer, and the crosslinking agent or the crosslinking agent-containing polyester composition is irradiated with ionizing radiant rays or ultraviolet rays. In this processed vessel, the dimension stability and rigidity are highly improved, and deformation under heat and/or pressure can be effectively prevented.

Abstract: A container for self-heating or self-cooling drinks or foodstuffs housed in the container has a diaphragm and a breaker capable of completely shattering the diaphragm with ease for delivering a liquid reactant to an exothermal or endothermal solid reactant. The container is partitioned into three chambers. One chamber contains drinks and foodstuffs, one contains exothermal or endothermal solid reactants, and one contains a liquid reactant. The diaphragm is made of thin prestressed glass partition between the reactant chamber containing the exothermal or endothermal solid reactant and the chamber containing the liquid reactant. Actuation of the breaker forms a large hole by shattering the prestressed glass diaphragm. The liquid reactant passes through the hole and contacts the exothermal or endothermal reactant, and the ensuing exothermal or endothermal reaction releases or absorbs energy to rapidly heat or cool the drinks or solid foodstuffs.

Abstract: The invention concerns a method for repairing transmission masks. After the mask has been inspected and the position coordinates of the mask openings have been stored, these position coordinates are compared with the position coordinates of the desired mask pattern to determine the location of defects. The mask to be repaired is then blanket coated on its front side with a photoresist. Particular photoresist regions overlying the mask defects to be repaired are exposed by non-optical or optical radiation for cross-linking the photoresist, the dose required for cross-linking depending upon the respective resist employed. The non-crosslinked portions of the photoresist are subsequently removed. Gold is then applied to the rear of the mask, with the cross-linked photoresist regions acting as a substrate. After the gold has been applied, the cross-linked photoresist regions are removed, typically by plasma etching.

Abstract: Radially extending fibers are disposed over a conical surface at predetermined sites. The sites correspond to vertices of a pattern of contiguous congruent squares inscribed onto the surface of a sector of a circle which may be conformally mapped into the conical surface. Vertices of the pattern coincide along the join line meridian of the conical surface. Fibers are disposed along element paths between the radially extending fibers and preferably, a continuous fiber is used. The material obtained is without any seams or discontinuities and exhibits an invariant fiber volume fraction along the axis and circumference of the conical surface. The material may be used to reinforce an object having a conical surface or to fabricate a preform.