Patents Examined by Prince E. Willis
  • Fluid responsive to a magnetic field
    Patent number: 4992190
    Abstract: A rheological fluid composition which is responsive to a magnetic field. The composition comprises magnetizable particulate, silica gel as a dispersant and a vehicle. A preferred magnetizable particulate is insulated, reduced carbonyl iron.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: February 12, 1991
    Assignee: TRW Inc.
    Inventor: Emil M. Shtarkman
  • Stably suspended organic peroxy bleach in a structured aqueous liquid
    Patent number: 4992194
    Abstract: An aqueous based structured heavy duty liquid detergent formulation is disclosed, which contains selected bleaches, surfactant combinations, borate polyol pH jump systems, and selected decoupling polymers.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: February 12, 1991
    Assignee: Lever Brothers Company, Division of Conopco Inc.
    Inventors: Patricia Liberati, Jack T. McCown, Michael Aronson, Johannes C. van de Pas
  • Corrosion inhibited deicing composition and method of its use
    Patent number: 4990278
    Abstract: A low-temperature corrosion inhibited deicing composition is disclosed which comprises a major portion of magnesium chloride and an effective amount of an inhibitor including a polyphosphate salt to reduce corrosion, or a solution thereof. The solution form is preferred. Additional preferred aspects are provided where the inhibitor also includes a zinc-containing salt, and where the deicing composition is free from (or at least substantially so) chloride ions other than those due to the magnesium chloride. A method for low-temperature deicing of bridgework is described which includes the use of the inhibited deicing composition.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: February 5, 1991
    Assignee: Reilly Industries, Inc.
    Inventor: John T. Wyeth
  • Photoactivator dye composition for detergent use
    Patent number: 4990280
    Abstract: A photoactivator dye composition includes microcapsules of a solid dispersion of a water-soluble photoactivator dye in an encapsulating material that is quickly soluble in water. In a method of preparing such a photoactivator dye composition, the photoactivator dye is dissolved in an aqueous medium, the solution thus obtained is mixed with an aqueous solution of the encapsulating material, the mixture thus obtained is converted into droplets, and the moisture content of these droplets is reduced to form a solid solution. The photoactivator dye composition may advantageously be used in a detergent composition which additionally includes a surfactant and conventional detergent ingredients.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: February 5, 1991
    Assignees: Danochemo A/S, The Proctor & Gamble Co.
    Inventors: Bitten Thorengaard, David W. York
  • Pigment dispersions, processes for their preparation and their use
    Patent number: 4986851
    Abstract: The invention relates to pigment dispersions which contain, as dispersing agents, alkylglycol ether-sulfates and phosphoric acid esters of fatty alcohols and oxyethylated fatty alcohols and which are suitable for pigmenting aqueous media, in particular cosmetic articles, such as soaps, fingerpaint colors and washing powders.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: January 22, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erwin Dietz, Albert Munkel, Ferdinand Memmel
  • Containing a succinic acid derivative
    Patent number: 4985177
    Abstract: A concentrated detergent composition comprising the following components (a)-(d) was disclosed,(a) a sulfate anionic or sulfonate anionic surface active agent,(b) a nonionic or amphoteric surface active agent,(c) a succinic acid derivative represented by the following formula (I): ##STR1## (d) a lower alkylbenzenesulfonate represented by the following formula (II): ##STR2## The concentrated liquid detergent composition has an excellent low-temperature stability and is capable of maintaining a homogeneous phase when thawed after frozen.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: January 15, 1991
    Assignee: Kao Corporation
    Inventors: Masaki Tosaka, Haruki Kawano, Katsuhiko Deguchi
  • In beta-phase bar form containing soap, high HLB nonionic surfactant, and water-soluble polymer
    Patent number: 4985170
    Abstract: Toilet compositions in beta-phase bar form comprising 45% to 90% C.sub.8-24 fatty acid soap, 0.5% to 45% of ethoxylated nonionic surfactant, and 0.01% to 5% of a water-soluble polymer. The compositions have improved scum-control uncharacteristics with excellent mildness, smear, lathering and transparency/translucency.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: January 15, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Geoffrey G. Dawson, Gordon Ridley
  • Forsterite and its use as insulating material
    Patent number: 4985164
    Abstract: The present invention relates to a fibrous-like synthetic forsterite obtained by the calcination of chrysotile asbestos fiber at a temperature of from 650.degree. to 1450.degree. C., said synthetic forsterite being characterized by having an MgO:SiO.sub.2 ratio lower than 1.1, a raw loose density of from 3 to 40 pcf, a thermal conductivity "k" factor of from 0.25 to 0.40 BTU. In/Hr. .degree. F. Ft.sup.2 and a fusion point of from 1600.degree. to 1700.degree. C. which is useful as an insulating material.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: January 15, 1991
    Assignee: Ceram-Sna Inc.
    Inventors: Pierre Delvaux, Luc Desrosiers, Marcel Gouin
  • Coolant filter composition
    Patent number: 4980075
    Abstract: In a method for manufacturing a circulating coolant system filter which includes a filter medium and a space into which a supplemental coolant additive can be placed to provide at least one beneficial property to the circulating coolant, the improvement comprising: automatically introducing the supplemental coolant additive into the space in the form of a liquid-powdered solids slurry.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: December 25, 1990
    Assignee: Dober Chemical Corporation
    Inventors: John F. Dobrez, David Ganbarg
  • Transparent soap composition based on soaps of tallow fatty acids and water and on at least one 1,2-alkanediol
    Patent number: 4980078
    Abstract: Composition in the form of a transparent, solid cake containing a soap consisting of a salt of C.sub.10 -C.sub.20 fatty, acids, a 1,2-alkanediol containing from 10 to 18 carbon atoms, a transparency agent, and water in quantities of less than or equal to 25% by weight relative to the total weight of the composition.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: December 25, 1990
    Assignee: L'Oreal
    Inventors: Claude Verite, Alain Caudet
  • Aqueous soap composition containing ethoxylated nonionic surfactants
    Patent number: 4975218
    Abstract: An aqueous single liquid phase detergent composition suitable for topical application to human skin comprises from 10% to 50% by weight of one or more C.sub.12 to C.sub.18 fatty acid soaps; and from 5% to 30% by weight of one or more ethoxylated C.sub.8 to C.sub.22 fatty alcohol having an average of from 20 to 50 ethoxylate groups.The composition is preferably in the form of a transparent gel product, suitably for washing the face.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: December 4, 1990
    Assignee: Chesebrough-Ponds's USA Co.
    Inventor: David A. Rosser
  • Hydrated alkali metal phosphate and silicated salt compositions
    Patent number: 4973419
    Abstract: Compositions suitable for use as detergents comprise a non-silicate-coated alkali metal phosphate salt hydrated to at least about 50% by weight, and an inorganic salt selected from alkali metal carbonates and sulfates. The compositions for use in, e.g. dishwashing, have improved solubility and dispersion characteristics.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: November 27, 1990
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Joseph Romeo, Anthony A. Rapisarda
  • Nitrogen-containing anhydrides as bleach activators in detergent compositions
    Patent number: 4973418
    Abstract: The present invention relates to a detergent composition in aqueous solution comprising,(i) a surfactant selected from anionic, nonionic, zwitterionic and cationic surfactants and mixtures thereof,(ii) a precursor compound capable of giving rise to a peroxygen compound in the presence of water,(iii) a bleach activator capable of enhancing the bleaching activity of the peroxygen compound so formed,(iv) a suds suppressing agent and(v) a detergent builder, characterized in that the bleach activator comprises one or more cyclic anhydrides containing at least one nitrogen atom in the alpha position with respect to at least one of the carbonyl functions in the anhydride and the activator is at least partially soluble in water.These compounds show bleaching activity at relatively low temperatures.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: November 27, 1990
    Assignee: BP Chemicals Limited
    Inventors: Stephen R. Hodge, Andrew Pearce
  • Perfume particles for use in cleaning and conditioning compositions
    Patent number: 4973422
    Abstract: Perfume particles are disclosed comprising perfume dispersed within certain water-insoluble polymeric carrier materials. Cleaning and conditioning compositions comprising these perfume particles are also disclosed. The perfume particles allow for preservation and protection of perfumes which are susceptible to degradation or loss in storage and in harsh cleaning conditions. The particles further allow for efficient delivery of a large variety of perfume types to fabrics or other surfaces.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: November 27, 1990
    Assignee: The Procter & Gamble Company
    Inventor: Diane Grob Schmidt
  • Detersive system with an improved hardness ion complexing agent
    Patent number: 4971714
    Abstract: An improved softening agent dispersed in an aqueous detergent comprising droplets having an exterior organic phase containing a complexing agent and an inner aqueous phase comprising an acid or salt. The ability of the softening agent to remove hardness ions is improved by a novel complexing agent.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: November 20, 1990
    Assignee: Ecolab Inc.
    Inventors: Keith D. Lokkesmoe, Richard B. Greenwald, Daniel J. Donovan
  • Thixotropic aqueous liquid automatic dishwashing detergent composition
    Patent number: 4968445
    Abstract: Thixotropic aqueous liquid automatic dishwashing detergent composition with improved anti-filming properties and method of using the detergent composition. The detergent composition comprises silica anti-filming agent, inorganic builder salts, chlorine bleach, bleach-stable detergent and a thixotropic thickener. The compositions provide reduced filming on dishware, glassware, china and the like, particularly in hard water, and remain stable against phase separation.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: November 6, 1990
    Assignee: Colgate-Palmolive Co.
    Inventors: Fahim U. Ahmed, Charles E. Buck
  • Thixotropic aqueous liquid automatic dishwashing detergent composition
    Patent number: 4968446
    Abstract: Thixotropic aqueous liquid automatic dishwashing detergent composition with improved anti-filming and anti-spotting properties and method of using the detergent composition. The detergent composition comprises alumina or titanium dioxide anti-filming agent, polyacrylate polymer anti-spotting agent, inorganic builder salts, chlorine bleach, bleach-stable detergent and a thixotropic thickener. The compositions provide reduced filming and spotting on dishware, glassware, china and the like, particularly in hard water, and remain stable against phase separation.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: November 6, 1990
    Assignee: Colgate-Palmolive Co.
    Inventors: Fahim U. Ahmed, Charles E. Buck
  • Anticorrosive pigment composition and an anticorrosive coating composition containing the same
    Patent number: 4966630
    Abstract: An anticorrosive pigment composition comprising (A) a slightly water-soluble condensed phosphoric acid salt and (B) at least one compound selected from the group consisting of zinc compounds, boric acid compounds and lead compounds, at least one of (A) and (B) having been chemically modified.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: October 30, 1990
    Assignee: Tayca Corporation
    Inventor: Masaaki Okuda
  • Bleach activators in detergent compositions
    Patent number: 4966723
    Abstract: The present invention relates to a detergent composition in aqueous solution comprising:(i) a surfactant selected from anionic, nonionic, zwitterionic and cationic surfactants and mixtures thereof,(ii) a precursor compound capable of giving rise to a peroxygen compound in the presence of water,(iii) a bleach activator capable of enhancing the bleaching activity of the peroxygen compound so formed,(iv) a suds suppressing agent and(v) a detergent building, characterised in that the bleach activator comprises one or more cyclic tertiary nitrogen compounds of a defined generic formula, said activator being at least partially soluble in water.The claimed bleach activators show bleaching activity at relatively low temperatures.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: October 30, 1990
    Assignee: BP Chemicals Limited
    Inventors: Stephen R. Hodge, Andrew Pearce
  • Viscous hard-surface cleaning compositions containing a binary glycol ether solvent system
    Patent number: 4966724
    Abstract: Liquid hard-surface cleaning compositions are disclosed which have a viscosity above 30 cps, show excellent cleaning on both kitchen and bathroom soils, and excellent shine performance.These compositions are substantially free of hydrotropes, and contain a narrowly-defined binary solvent system constituted by Butyl Carbitol as one of the solvents and Butoxy Propoxy Propanol or Hexyl Carbitol as the other solvent.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: October 30, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Culshaw, Eddy Vos