Patents Examined by William R. Dixon, Jr.
-
Patent number: 5202047Abstract: A composition characterized in that it comprises one or more interhalogens or sources thereof and one or more acids or sources thereof which are not appreciably oxidized by the interhalogen(s) is disclosed.When diluted with water to in-use solution strength, such may be used in an ambient cleaning and/or disinfecting process in accordance with the present invention particularly for milk- or food-handling equipment.Type: GrantFiled: December 6, 1990Date of Patent: April 13, 1993Assignee: Diversey CorporationInventor: Michael P. Corby
-
Patent number: 5200370Abstract: Monocrystalline ceramic fibers are disclosed together with a process for preparing such fibers. Polycrystalline ceramic fibers in a tow are coated with a coating that is chemically substantially non-reactive with the ceramic (e.g. alumina fibers coated with molybdenum), and the coated fibers are drawn through a heating zone maintained at a temperature high enough to melt the fibers without melting the coating. The coated fibers are withdrawn from the heating zone and cooled rapidly enough to form a substantially monocrystalline ceramic. The protective coating may thereafter be removed to leave a tow of substantially single-crystal ceramic fibers. Monocrystalline ceramic fibers about 8-20 microns in diameter are prepared by the disclosed process.Type: GrantFiled: November 16, 1990Date of Patent: April 6, 1993Assignee: Fiber Materials, Inc.Inventors: James R. Lennox, Roger T. Pepper, Paul V. Chayka
-
Patent number: 5199983Abstract: Disclosed herein are black pigment particles comprising polycrystalline particles having a mixed composition of Fe.sub.2 TiO.sub.5 and Fe.sub.2 O.sub.3 --FeTiO.sub.3 solid solution.Type: GrantFiled: March 26, 1992Date of Patent: April 6, 1993Assignee: Toda Kogyo Corp.Inventor: Tsutomu Katamoto
-
Patent number: 5200112Abstract: Structures containing conducting polymers and methods of fabrication thereof. Electrical conductivity can be induced in polymers selected from the group of substituted and unsubstituted polyanilines, polyparaphenylenvinyles, substituted and unsubstituted polythiophenes substituted and unsubstituted poly-p-phenylene sulfides, substituted polyfuranes, substituted polypyrroles, substituted polyselenophene, polyacetylines formed from soluble precursors, combinations thereof and blends thereof with other polymers. The polymer contains a doping precursor, selected from the group of onium salts, iodonium salts, triflate salts, borate salts and tosylate salts and sulfonoxylimides. Conductivity can be selectively induced in the polymer by selectivly doping upon selective exposure to a source of energy such as electromagnetic radiation, an electron beam and heat.Type: GrantFiled: June 20, 1991Date of Patent: April 6, 1993Assignee: International Business Machines CorporationInventors: Marie Angelopoulos, Wu-Song Huang, Richard D. Kaplan, Marie-Annick Le Corre, Stanley E. Perreault, Jane M. Shaw, Michel R. Tissier, George F. Walker
-
Patent number: 5199980Abstract: A polyurethane-based water-in-water multicolor paint composition is provided having a disperse phase and a continuous phase. The disperse phrase preferably is comprised of a water dispersible, film-forming, crosslinkable, polyurethane polymer system; hydroxy (lower alkyl) cellulose; quaternized water soluble cellulose ether; peptized clay; and water. The continuous phase preferably is comprised of such a polyurethane polymer system, a peptized clay and water. Methods for preparing the paint are also provided.Type: GrantFiled: March 16, 1992Date of Patent: April 6, 1993Assignee: Multicolor Specialties, Inc.Inventors: James F. Lynch, John Predkelis
-
Patent number: 5198024Abstract: A printing ink, especially a printing ink for newsprint, comprises essentially pigment and binder portions. The binder portion consists entirely of a tall oil based agent. The tall oil is chemically processed, e.g. polymerized, esterified, fortified and/or phenolated for bringing it into a form suitable for use as a binder portion and/or a binder component.Type: GrantFiled: July 12, 1991Date of Patent: March 30, 1993Assignee: Yhtyneet Paperitehtaat OyInventors: Juhani Tuovinen, Markku Sjostedt
-
Patent number: 5198026Abstract: Zinc powder, which contains a coloring element, e.g., Ti, Mn, or V, is heated to a temperature of from 350.degree. to 700.degree. C. so as to oxidize the surface of the powder and hence to develop such colors as brown, navy blue, blue, greenish-brown, green, and coffee brown. The colored zinc powder is sprayed onto a steel, aluminum, or ceramic article to produce a colored article. The colored zinc powder is also used as a pigment.Type: GrantFiled: September 25, 1991Date of Patent: March 30, 1993Assignee: Nippon Mining Co., Ltd.Inventors: Eiji Nishimura, Chikara Tominaga, Yusaku Masuda, Hiroshi Tasaki
-
Patent number: 5197999Abstract: A pad for planarization by mechanical polishing of a dielectric layer formed over features on a wafer in the manufacture of semiconductor devices has a substantially planar polishing face. The pad includes a soft matrix material and a substance for stiffening distributed in the pad so as to effect stiffening of the pad. The substance for stiffening is composed of a hard substance, which in a preferred embodiment is in the form of discrete particles distributed substantially uniformly throughout substantially all of the pad.Type: GrantFiled: September 30, 1991Date of Patent: March 30, 1993Assignee: National Semiconductor CorporationInventor: Michael E. Thomas
-
Patent number: 5198153Abstract: Structures containing conducting polymers and methods of fabrication thereof. Electrical conductivity can be induced in polymers selected from the group of substituted and unsubstituted polyanilines, polyparaphenylenvinyles, substituted and unsubstituted polythiophenes substituted and unsubstituted poly-p-phenylene sulfides, substituted polyfuranes, substituted polypyrroles, substituted polyselenophene, polyacetylines formed from soluble precursors, combinations thereof and blends thereof with other polymers. The polymer contains a doping precursor, selected from the group of onium salts, iodonium salts, triflate salts, borate salts and tosylate salts and sulfonoxylimides. Conductivity can be selectively induced in the polymer by selectively doping upon selective exposure to a source of energy such as electromagnetic radiation, an electron beam and heat.Type: GrantFiled: May 26, 1989Date of Patent: March 30, 1993Assignee: International Business Machines CorporationInventors: Marie Angelopoulos, Wu-Song Huang, Richard D. Kaplan, Marie-Annick Le Corre, Stanley E. Perreault, Jane M. Shaw, Michel R. Tissier, George F. Walker
-
Patent number: 5196388Abstract: Disclosed is a process for the preparation of double metal oxide ceramic powders which contain at least one metal of Group IIIA, inclusive of aluminum and gallium, and at least one metal of Group IVB, inclusive of titanium and zirconium. The process involves a first step in which an aqueous solution of mixed metal alkoxides or salts is formed and which also contains a chelating agent, preferably a polycarboxylic acid, and a second step in which a base is added in order to cause precipitation of a mixed metal hydroxyl groups-containing precursor that can be calcined or otherwise converted to the final mixed metal oxide. The invention also pertains to novel double metal hydroxyl carboxylates which are useful intermediates in preparing double metal oxides.Type: GrantFiled: June 10, 1991Date of Patent: March 23, 1993Assignee: Akzo N.V.Inventor: Lieh-Jiun Shyu
-
Patent number: 5196054Abstract: A preparation for the water-repellant impregnation of porous, mineral building materials on the basis of organosilicon compounds is disclosed. The preparation is an emulsion containing alkoxy groups and consist of an emulsion containinga) 5 to 45% by weight of an alkoxysilane of the general formulaR.sup.1 --Si--(OR.sup.2).sub.3whereinR.sup.1 is an alkyl group with 1 to 16 carbon atoms and R.sup.2 is an alkyl group with 1 to 4 carbon atoms,b) 45 to 5% by weight of a mixture consisting ofb1) a silane of the general formula R.sup.3 --Si--(OR.sup.2).sub.3, wherein R.sub.3 is an aminoalkyl group with 1 to 6 carbon atoms or a group of the general formulaH.sub.2 N--(CH.sub.2).sub.x R.sup.4 --(CH.sub.2).sub.y --,in whichR.sup.4 represents oxygen, sulfur, --NH-- or --NH--CH.sub.2 --CH.sub.2 --NH group and x.gtoreq.2 and y.gtoreq., or a group of the general formula (R.sup.2 O).sub.3 Si--(CH.sub.2).sub.x --NH--(CH.sub.2).sub.x --, in which R.sup.Type: GrantFiled: August 28, 1991Date of Patent: March 23, 1993Assignee: Th. Goldschmidt AGInventors: Manfred Schmuck, Heribert Seyffert
-
Patent number: 5194475Abstract: An ink jet composition and method of printing on plain paper are provided wherein the composition comprises a colloidal solution of a nonaqueous solvent (e.g. selected glycol ethers) and a disperse phase comprising a resin (e.g. a selected ethylene-vinyl acetate copolymer) which is soluble in the solvent at room temperature and a dyestuff which is soluble in the resin at room temperature but substantially insoluble in the solvent at room temperature. The ink composition is fluid and may have a very low viscosity at room temperature.Type: GrantFiled: October 29, 1990Date of Patent: March 16, 1993Assignee: Xaar LimitedInventors: Jurgen M. Kruse, Donald B. Kimball, Jr.
-
Patent number: 5193941Abstract: Aluminum leafing flakes for expanding grout are adhered to microparticles to distribute the flakes in dry and wet grouts. The flakes have a protective coating sensitive to the alkalinity of dry and wet grouts alkaline. The coated flake carrying microparticles may be blended and stored with dry grouts or used directly with wet grouts as part of a fluidifier for the grout.Type: GrantFiled: July 26, 1991Date of Patent: March 16, 1993Assignee: Specrete-IP IncorporatedInventor: Alfonzo L. Wilson
-
Patent number: 5194073Abstract: Sintered composite abrasive material useful in abrasives (grinding wheels, abrasive discs and paper, etc.) and cutting tools, comprising an .alpha.-Al.sub.2 O.sub.3 matrix of sub-micron crystallite size made by sol-gel processing with a dispersed phase therein of mechanically resistant material, preferably essentially isotropic grains, added directly to the sol or gel stage of matrix formation.Type: GrantFiled: November 8, 1991Date of Patent: March 16, 1993Assignee: Hermann C. Starck Berlin GmbH & Co. KGInventors: Gerhard Winter, Paul Moltgen, Dietmar Fister
-
Patent number: 5194091Abstract: Geopolymer-modified gypsum construction materials. Compositions derived from combining geopolymer adhesives with conventional gypsum wallboard slurry formulations produce an interpenetrating network (IPN) which cures by loss of process water to a refractory solid having improved fire and water resistance. Geopolymer adhesive starting compositions includes soluble and insoluble silicates, buffers and salts, and a chemical setting agent in aqueous suspension.Type: GrantFiled: December 26, 1990Date of Patent: March 16, 1993Assignee: The Hera CorporationInventor: Bill E. Laney
-
Patent number: 5192365Abstract: Desirable buff rutile pigment compositions are described which comprise about 40 to about 55% by weight of titanium, from about 0.4 to about 5 parts by weight of cobalt, from about 7 to about 14% by weight of tungsten, from 0.01 to about 5 parts by weight of lithium and from about 0.1 to about 20 parts by weight of cerium.Type: GrantFiled: June 6, 1991Date of Patent: March 9, 1993Assignee: Engelhard CorporationInventor: Zoltan M. Modly
-
Patent number: 5190568Abstract: An abrasive material has a contoured surface defining peaks and valleys, and side walls connecting the two. The peaks, side walls and valleys are covered with diamonds or other hard particles for effecting the grinding. In the beginning, the hard particles support one another laterally to prevent premature removal of particles, and the valleys provide for fluid flow for debris removal, cooling and protection of the retaining matrix. Later, the particles on the side walls, and eventually those in the valleys, become active in grinding, so that tool life is extended.Type: GrantFiled: August 7, 1991Date of Patent: March 2, 1993Inventor: Naum N. Tselesin
-
Patent number: 5190698Abstract: There is disclosed a composite of 1) a polymer containing repeating units derived from a vinyl carboxylic ester having at least one organo terminated poly(alkylene oxide) side chain with the proviso that the poly(alkylene oxide) is present in an amount greater than 35 mole percent of the total of all backbone monomer units and alkylene oxide units in the polymer and 2) a metal oxide wherein the metal oxide comprises between about 1 and about 60 percent by weight of the composite. The composites can be made by a process comprising the steps of:combining the described polymer and a metal oxide precursor in a solvent solution;casting or coating the resulting solution onto a substrate;curing the resulting sample to form a composite of the polymer and the metal oxide.Optionally, the composite can be removed from the substrate to form a transparent free standing film. These composites have a variety of desirable properties.Type: GrantFiled: April 15, 1991Date of Patent: March 2, 1993Assignee: Eastman Kodak CompanyInventors: Bradley K. Coltrain, Neil T. Ferrar, Christine J. T. Landry, S. R. Turner
-
Patent number: 5190585Abstract: The present invention provides processes for the production of a pigment composition comprising: Ia) contacting a pigment, before or during its synthesis, with a water-immiscible carrier medium, and then completing the pigment synthesis to produce a pigment composition comprising the pigment and the water-immiscible carrier medium, and Ib) contacting the resulting aqueous fully-synthesized pigment composition with an aliphatic organic acid and optionally a water-immiscible carrier medium; adjusting the pH value of the mixture so obtained to below 7.0; and then adjusting to the pH value of the mixture to a value above 7.0 thereby transferring the organic acid into the aqueous phase; and isolating a pigment composition comprising the pigment and the water-immiscible carrier medium, or II) contacting an aqueous fully-synthesized pigment slurry with an aliphatic organic acid and a water-immiscible carrier medium according to above step Ib).Type: GrantFiled: November 13, 1991Date of Patent: March 2, 1993Assignee: Ciba-Geigy CorporationInventors: James M. McCrae, Neil C. W. Forsythe
-
Patent number: 5190615Abstract: A low brightness pigment and method is provided from a heretofore rejected waste kaolin stream. Kaolin processing rejects are high in iron-stained TiO.sub.2. After separating the stained TiO.sub.2 from the high brightness kaolin and concentrating the resulting fraction, the material can be processed to produce a low brightness pigment suitable of many applications where lower brightness is desirable, such as coating paper board without mottling.Type: GrantFiled: April 27, 1992Date of Patent: March 2, 1993Assignee: J. M. Huber CorporationInventors: Albert C. Kunkle, Robert E. Hardy, Bobby R. Skipper