Patents Examined by Harris A. Pitlick
  • Liquid laundry detergent comprising a nonionic surfactant and an alkanolamine
    Patent number: 4202800
    Abstract: Excellent liquid laundry-detergent compositions are obtained by combining (1) alkanolamine, (2) nonionic surfactant, (3) sodium carboxymethylcellulose, (4) fabric brightener(s), (5) solvent, and (6) water. The preferred compositions of the invention also usually contain optional ingredients, such as dyes and perfumes. The alkanolamines promote the action of the nonionic surfactants. Moreover, it is desirable to use some triethanolamine for its stabilizing effect. The mixture of alkanolamine and nonionic surfactants is compatible with sodium carboxymethylcellulose, an excellent agent for avoiding redeposition of soil. The compositions according to the invention have good detergent activity when used at temperatures such as 49 to 60 degrees Centigrade. They afford a liquid laundry detergent which is at least as active, pound for pound, as powder laundry detergents now in common use.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: May 13, 1980
    Assignee: BASF Wyandotte Corporation
    Inventors: John D. Ciko, Robert A. Ward, John J. Cramer
  • Apparatus for spin coating in the production of thin magnetic layers for magnetic discs
    Patent number: 4201149
    Abstract: The invention relates to an improved apparatus for the manufacture of magnetic discs carrying very thin magnetic layers, by applying a fluid dispersion of magnetic materials in a binder mixture to rigid base discs by the spin-coating process. Above the side of the base disc which is to be provided with the magnetic layer, there are arranged means which produce an aerodynamic boundary layer above the discs during rotation of the latter. This avoids the formation of surface irregularities and of coating streaks during production of the layer by spin-coating.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: May 6, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Koester, Paul Deigner, Roland Falk, Karl Uhl, Dieter Schaefer, Dieter Mayer, Herbert Motz, Peter Felleisen
  • Silicic acid detergent product for microdeposition of silicic acid on textiles
    Patent number: 4200548
    Abstract: The disclosure relates generally to the detergent art and more specifically to a silicic acid detergent product for the microdeposition of silicic acid on textiles. The product comprises essentially an adduct (hydrogen bond compound) of oligomer and/or polymer silicic acid with polyethylene oxide compounds together with alkali, M.sub.2 O, where M is selected from the group consisting of Na, K, Li, alkanolamines and a quaternary ammonium group, amounting to a molar ratio SiO.sub.2 :M.sub.2 O>4, or preferably 6-100, said product being physically or colloidally soluble in laundry medium inside a pH of 8-12, in which medium it serves as a microdepositor for silicic acid on laundry textiles.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: April 29, 1980
    Assignee: Elektrokemiska Aktiebolaget
    Inventors: Olof Sunden, Hans Johansson, Hakan B. Ahlberg, Per-Arne I. Karlsson
  • Detergent compositions containing salicylate corrosion inhibitor
    Patent number: 4199483
    Abstract: Described are low or no phosphate heavy-duty detergent compositions containing alkali metal, alkaline earth metal or ammonium salicylates as corrosion inhibitors. Preferably, the corrosion inhibitor herein is sodium salicylate. The detergent compositions preferably are unbuilt, liquid compositions and contain an anionic/nonionic surfactant mixture.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: April 22, 1980
    Assignee: The Procter & Gamble Company
    Inventor: Kenneth L. Jones
  • Refrigeration oil containing wear-inhibiting amounts of an aryl phosphate-fatty acid combination
    Patent number: 4199461
    Abstract: Refrigeration or heat pump apparatus containing working fluid consisting essentially of refrigerant and lubricant, said refrigerant being a halo-substituted hydrocarbon of 1 to 3 carbon atoms and preferably at least 40% by weight fluorine, and said lubricant being mineral lubricating oil, poly-alpha-olefin lubricating oil, synthetic alkylbenzene lubricating oil or mixtures thereof containing the combination of higher fatty acid and arylphosphate in a minor amount, sufficient to improve the wear-inhibiting properties of said lubricant and to improve the resistance of said lubricant to decomposition.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: April 22, 1980
    Assignee: Chevron Research Company
    Inventor: Sven A. Olund
  • Furfuryloxy-substituted organosilicon compounds
    Patent number: 4196131
    Abstract: Disclosed are furfuryloxy substituted organosilicon compounds having a viscosity of from about 5 to about 500 cs at 25.degree. C. and useful as dielectric fluids. Disclosed also are improved electrical devices such as transformers and capacitors containing such compounds as dielectric fluids.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: April 1, 1980
    Assignee: Dow Corning Corporation
    Inventor: Gary A. Vincent
  • Novel low temperature cleaner
    Patent number: 4193886
    Abstract: A weakly alkaline cleaning composition for the removal of soils containing free or combined organic acids comprising (A) at least one polyhydric alcohol or a lower aliphatic ether or ester thereof having at least 2 free hydroxy groups, (B) 1.0 to 500% by weight of at least one alkali metal bicarbonate based on the weight of the polyhydric alcohol and (C) 5.0 to 1000% by weight of at least one alkali metal salt of a weak organic acid based on the weight of the polyhydric alcohol and a method of removing soils containing free or combined organic acids from a surface.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: March 18, 1980
    Assignee: Church & Dwight Co., Inc.
    Inventors: Daniel Schoenholz, Arthur W. Petersen, Marcus A. Northup, Jr.
  • Automotive brake fluid compositions including semipolar borates and heteroborates
    Patent number: 4192759
    Abstract: Brake fluids of good quality which increase wet equilibrium reflux boiling point without increasing rubber swelling property and disperse or dissolve homogeneously the additives and metals extracted from rubber brake cups and cylinder pipes can be obtained by dissolving semipolar borates containing a bond represented by the formula, ##STR1## which can be a hybridized orbital between SP.sup.2 and SP.sup.3 with regard to boron atom and having at least two hydroxyl groups outside said bond and heteroborates comprising an SP.sup.2 hybridized orbital and containing butyl group and methyl group in their molecule in polyalkylene glycol monoalkyl ethers comprising a C.sub.1 -C.sub.4 alkyl group.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: March 11, 1980
    Assignee: Toho Chemical Industry Co., Ltd.
    Inventor: Hiroyoshi Hamanaka
  • Cooling agent mixture containing ethylene glycol monoacetate, ethylene glycol diacetate, and glycol monomethyl ether for low-temperature freezing processes
    Patent number: 4192760
    Abstract: A cooling agent mixture useful in low-temperature freezing processes is disclosed. The mixture comprises, based upon the total weight of the mixture, from about 15 to about 35% ethylene glycol monoacetate and ethylene glycol diacetate, the ratio of the monoacetate to the diacetate being from about 1:9 to about 9:1; and from about 35 to about 65% glycol monomethyl ether. The mixture may also comprise from about 0 to about 18% monovalent, short-chained alcohol, or mixture thereof, from about 0 to about 3% of a corrosion inhibitor, and from about 0 to about 40% water. The compositions have outstanding cooling characteristics and possess viscosities acceptable for use in typical cooling installations.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: March 11, 1980
    Assignee: Akzona Incorporated
    Inventors: Rudolf Junger, Hans-Joachim Maulhardt
  • High-voltage electrical apparatus utilizing an insulating gas of sulfur hexafluoride and helium
    Patent number: 4190733
    Abstract: High-voltage electrical apparatus includes an outer housing at low potential, an inner electrode disposed within the outer housing at high potential with respect thereto, and support means for insulatably supporting the inner electrode within the outer housing. Conducting particles contaminate the interior of the outer housing, and an insulating gas electrically insulates the inner electrode from the outer housing even in the presence of the conducting particles. The insulating gas is comprised of sulfur hexafluoride at a partial pressure of from about 2.9 to about 3.4 atmospheres absolute, and helium at a partial pressure from about 1.1 to about 11.4 atmospheres absolute. The sulfur hexafluoride comprises between 20 and 65 volume percent of the insulating gas.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: February 26, 1980
    Assignee: Westinghouse Electric Corp.
    Inventor: Roy E. Wootton
  • Tracking resistant HV insulation material containing fluorine-substituted component to inhibit erosion
    Patent number: 4189392
    Abstract: An electrical insulating material having anti-tracking properties has incorporated therein an erosion inhibiting fluorine-substituted compound. The electrical insulating material comprises a polymeric material having an anti-tracking filler and the fluorine-substituted compound is a hydrophobic, non-ionic compound having a fluorine-substituted aliphatic carbon chain linked to a group having an affinity for the polymeric material and/or the anti-tracking filler. The electrical insulating material may be used in high voltage applications where it is necessary to resist erosion and/or control leakage currents.
    Type: Grant
    Filed: July 26, 1977
    Date of Patent: February 19, 1980
    Inventors: Richard J. Penneck, John M. Senior
  • Stabilization of 1,1,1-trichloroethane compositions against metal-induced decomposition with a polyalkylene glycol monoalkyl ether
    Patent number: 4189397
    Abstract: 1,1,1-trichloroethane is stabilised against metal-induced decomposition by incorporating a polyalkylene glycol monoalkyl ether.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: February 19, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventor: Christopher S. Allen
  • Heat storage material comprising calcium chloride-hexahydrate and a nucleating agent
    Patent number: 4189394
    Abstract: The utility of calcium chloride-hexahydrate as a heat storage material is improved when barium carbonate, strontium carbonate, barium fluoride, barium fluoride-hydrofluoride and/or strontium fluoride is used as a nucleating agent to prevent supercooling.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: February 19, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Johann Schroder, Klaus Gawron
  • Heat storage material comprising lithium chlorate-trihydrate and a nucleating agent
    Patent number: 4189393
    Abstract: A heat storage material comprising lithium chlorate-trihydrate as the heat storage medium and potassium perchlorate and/or sodium, potassium or barium hexafluorosilicate as the nucleating agent to reduce supercooling.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: February 19, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Johann Schroder, Klaus Gawron
  • Detergent composition in a water-insoluble bag having a water-sensitive seal
    Patent number: 4188304
    Abstract: A detergent product comprises a particulate detergent composition contained within a closed water-insoluble bag which has a water-sensitive seal, whereby the contents of the bag are discharged on contact of the bag with water. Use of such detergent products improves detergent dosage control and hence cost-effectiveness, and is particularly beneficial for detergent compositions of higher density than customary or which contain water-insoluble ingredients.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: February 12, 1980
    Assignee: Lever Brothers Company
    Inventors: David E. Clarke, James F. Davies, John B. Tune
  • Phase change thermal storage materials with crust forming stabilizers
    Patent number: 4187189
    Abstract: A body for the storage of heat or for the storage of coolness is, in its solid phase, a conglomerate of a mass of crystalline particles of a salt-hydrate, and a rigid cellular support structure in the form of a crust formed by a chemical reaction with the surfaces of the crystalline particles. By way of example, strontium nitrate is reacted with uniformly sized crystalline particles of sodium sulfate decahydrate to form an integral support crust structure of the compound strontium sulfate, which compound is insoluble in water. When the crystalline particles are transformed to the liquid phase, the liquid is confined within the cells of the support structure. The body is enclosed in a moisture impermeable skin to prevent evaporation of the water of crystallization in the liquid phase.
    Type: Grant
    Filed: May 2, 1978
    Date of Patent: February 5, 1980
    Assignee: American Technological University
    Inventor: Maria Telkes
  • Electrical device containing a halogenated alkanoate dielectric fluid
    Patent number: 4187188
    Abstract: In an electrical device containing a dielectric fluid, the improvement comprising employing as the dielectric fluid a compound of the formula: ##STR1## where X is independently --Cl or --Br; Z is independently ##STR2## R and R' are independently (CH.sub.2).sub.n CH.sub.3 ; and n is an integer of 0 to 10.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: February 5, 1980
    Assignee: The Dow Chemical Company
    Inventor: Dennis P. Miller
  • Photoresist stripper with dodecylsulfonic acid and chlorinated solvents
    Patent number: 4187191
    Abstract: A stripper for removing a photoresist mask. The stripper consists essentially, by volume, of about 50-85% tetrachloroethylene and ortho-dichlorobenzene in generally equal amounts, about 15-50% dodecylsulfonic acid, and up to 3% formic acid.
    Type: Grant
    Filed: July 26, 1978
    Date of Patent: February 5, 1980
    Assignee: General Motors Corporation
    Inventor: George W. Simpson, Jr.
  • Solution and method for cleaning, polishing and lubricating magnetic heads
    Patent number: 4183819
    Abstract: A liquid solution and method for cleaning, polishing and lubricating the magnetic record/playback heads of tape recorders is provided comprising;(a) a mixture of micropulverized inorganic oxides;(b) a mixture of lower alkyl silanes;(c) an alkaline earth metal carbonate;(d) a long chain fatty acid having from 16 to 20 carbon atoms; and(e) a solvent mixture of lower alkyl alcohols having from about 1 to 4 carbon atoms.
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: January 15, 1980
    Inventor: Solomon Stolove
  • Method of preparing metal-containing soap and soap so produced
    Patent number: 4182685
    Abstract: Metal-containing soaps are prepared by reaction of at least one fatty acid with a water-soluble, multi-metal, inorganic, amide group-containing monomeric or polymeric complex. Such monomeric or polymeric complex is obtained by reacting, in the presence of aqueous ammonia, at least one non-alkaline metal with an alkali metal hydroxide in accordance with a reaction sequence which produces reactive NH.sub.2 groups. Variation of the reaction parameters, particularly pH, will determine whether the soap has detergent or non-detergent properties. To produce a detergent soap also containing effective bleach properties, hydrogen peroxide can be added to the fatty acid and complex reactants.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: January 8, 1980
    Inventor: George G. Merkl