Abstract: An electrically and thermally conductive adhesive containing a metal alloy dispersed in a resin is disclosed. The composition of the adhesive may include a resin mixture and a gallium-metal alloy. The composition is very stable, is a liquid at room temperature and cures at a relatively low temperature with excellent adhesion and conduction properties and is resistant to relatively high temperatures.
Abstract: An improved photoconductor for GaAs laser addressed devices sensitive to illumination at about 1.5 eV is an amorphous material containing silicon, hydrogen and a material taken from the group consisting of Ge, Sn and Pb. A preferred embodiment of this invention is amorphous Si.sub.x Ge.sub.1-x H.sub.y where x equals 0.78 to 0.93 and y equals 14-20 atomic percent.
Type:
Grant
Filed:
January 13, 1978
Date of Patent:
April 3, 1979
Assignee:
International Business Machines Corporation
Inventors:
Jacques P. Chevallier, Charles R. Guarnieri, Aare Onton, Harold Wieder
Abstract: The method comprises feeding the veneer through a closed chamber under vacuum conditions, and heating the veneer while in the chamber by an infrared emitter. The apparatus comprises a chamber having means for feeding the veneer to, through and from the chamber, means for creating a vacuum within the chamber, and infrared emitter heating means.
Type:
Grant
Filed:
April 14, 1977
Date of Patent:
April 3, 1979
Assignee:
Georgia-Pacific Corporation
Inventors:
Leslie M. Steffensen, H. Gary Dutell, Robert A. Rydell
Abstract: Electrically conductive compositions comprising conductive particles dispersed in a matrix of a radial teleblock copolymer of styrene and butadiene, and coating compositions for making the same in sheet form and comprising dispersions of conductive particles in a solution of a radial teleblock copolymer of styrene and butadiene in an organic solvent.
Abstract: A detergent composition contains perfume in the form of water-insoluble, friable microcapsules which become entrained in or on fabric during a laundering process and which release the perfume during manipulation of the dry fabric.
Abstract: An improved pressure-sensitive resistance element is provided which is composed of an electrically non-conductive matrix of a rubbery elastomer and electrically conductive particles dispersed therethrough to have a gradient of distribution from one side to the other of the matrix. Such resistance elements can be manufactured by preliminarily mixing a fluid silicone rubber composition with the conductive particles to be uniformly dispersed therein and subsequently subjecting the mixture to curing to form a rubbery elastomer while, concurrently, the particles are naturally or by force allowed to settle to form the gradient of distribution within the matrix.The resistance elements are superior in easily obtaining the desired resistivity in a wide range by adjusting pressure applied thereto as well as a long service life, compared to products of the kind hitherto known.
Abstract: A rechargeable electrical energy storage device including a lithium-containing negative electrode, a lithium ion electrolyte, and a positive electrode containing iron sulfide formed in situ by the reaction of a predeposited solid iron salt and hydrogen sulfide within a porous carbon structural body.
Abstract: A method for manufacturing metal oxide varistors with an extremely homogeneous dispersion of metal oxides is disclosed. In accordance with one embodiment of the invention, nitrates of zinc and certain metal additives are heated to form a hydrated solution which is further heated to form a dehydrated melt, which is further heated to form an extremely homogeneous dispersion of the metal oxides. Tin and antimony are added as oxides rather than nitrates. This process eliminates the need for ball milling.
Abstract: A positive electrode for a rechargeable electrical energy storage device containing a lithium or lithium-aluminum negative electrode, an electrolyte with lithium ions, and a positive electrode formed by impregnating a molded iron sulfide compact with a pitch or thermosetting resin, and subsequently carbonizing the pitch or resin to form an in situ carbon structure, to serve as the foundation for the electrode.
Abstract: A pressure sensitive conductor which is made by mixing a silicone rubber, electrically conductive metal particles, and at least one compound selected from the group consisting of monoalkyl, dialkyl, and trialkyl titanate compounds, molding, and curing the same. Where a monoalkyl titanate compound is used, filler-containing silicone rubber may preferably be used.
Abstract: An apparatus for removing moisture from a moisture containing product in which the improvement consists of removing latent heat from the moisture removed from the product and reintroducing the latent heat as sensible heat to heat the air stream which is used to remove the moisture from the product, thus providing a continuous closed cycle drying process which includes its own heat supply.
Abstract: An electrode is described which is comprised of an electroconductive substrate having an exterior surface of perovskite of the empirical formulaA A' B O.sub.3 (I)a. wherein A is lanthanum,B. wherein A' is an alkaline earth metal selected from the group consisting of calcium, strontium, barium, and mixtures thereof,C. wherein B is a transition metal selected from the group consisting of cobalt, chromium, tungsten, molybdenum, manganese, iron, nickel, rhenium, uranium, and mixtures thereof,D. wherein the atomic ratio of A:A' is in the range from about 0.05:1 to about 0.95:1,E. wherein the valence of A + A' + B = 6,f. wherein said electrode has a resistivity preferably less than about 10 milliohm-centimeters.sup.-1, andG. wherein said perovskite is substantially insoluble in the electrolyte contacting said electrode under typical conditions of electrolysis.
Abstract: A process for the stabilization of a fluidized bed against bubble formation which process comprises a vessel, a plurality of permanently magnetized particles dispersed throughout the bed, and means for fluidizing said particles. The particles are designated as permanently magnetized by virtue of their possessing a coercivity of at least 50 oersteds. The permanently magnetized particles exert magnetic attractive forces upon one another, thereby imparting stability to the fluidized bed. In these beds, fluid throughput rates which are up to 10 or more times the flow rate of said fluid at incipient fluidization of the unmagnetized particles can be achieved with little or no bubbling and at bed pressure drops equal to bed weight.
Abstract: Methanol soluble electroconductive coating formulations comprising an electroconductive polymer and a methanol dispersible fluorosurfactant and optionally a pigment.
Abstract: A dye dispersing composition having improved fiber staining characteristics, lower viscosity and improved heat stability is disclosed which comprises, a mixture of from 97% to 10% by weight of a sulfonated lignin and from 3% to 90% by weight of an aromatic sulfonic acid or a soluble compound obtained by condensing formaldehyde or its equivalent with an aromatic sulfonic acid.
Abstract: A rotating anode for an x-ray tube, comprising a body of sintered, molybdenum-based alloy coated with a layer of tungsten or tungsten alloy at least in the zone of impact of the electrons. The molybdenum-based alloy contains from 3 to 10% by weight of tungsten and 0.01 to 0.5% of ZrO.sub.2.The anode has improved resistance to thermal stresses.
Abstract: A fibrous material useful for treating a waste water having a suitable amount and ratio of hydrophobic group and hydrophilic group is produced by reacting a fibrous material with sulfuric acid and/or chlorosulfonic acid, and then with alkylamines having 2 to 20 carbon atoms and optionally finally with, for example, ammonia, amines and/or hydrazines.
Abstract: A ceramic electrical resistor with nonlinear current-voltage characteristic has a base of zinc oxide and at least one other component. A method is provided for producing such resistors.
Abstract: Thermistors (NTC) containing a mixture of terbium oxide and a material selected from the group consisting of samarium and ytterbium oxide are useful in high temperature environments.
Abstract: A high resistive electrical conductive coating of discrete composition is provided for band-like deposition in a defined area of the interior surface of substantially the funnel member of a cathode ray tube envelope between the region of the high potential transversal therethrough and the electron generating means oriented in the contiguous neck portion. The coating is an amorphous deposition of a homogeneous mixture of a vitreous substantially insulative frit material admixed with at least one particulate material selected from the group consisting essentially of cadmium oxide, indium oxide and copper oxide wherein the individual particles of the respective oxide ingredients are uniformly dispersed and encapsulated to provide a discretely defined resistive structural means for effecting arc suppression in the region of the electron generating assembly.
Type:
Grant
Filed:
July 5, 1977
Date of Patent:
November 7, 1978
Assignee:
GTE Sylvania Incorporated
Inventors:
Gordon T. Foreman, Anthony V. Gallaro, George N. Williams