Patents Examined by E. M. Higgins
  • Patent number: 5413727
    Abstract: The physical stability of liquid gel-like compositions based on thixotropic thickener is greatly improved by incorporating in the composition small amounts of long chain fatty acids and salts thereof. The aqueous compositions containing inorganic builder salts and other functional inorganic salts, chlorine bleach, bleach stable detergent, at least one thixotropic thickener and a fatty acid or a metal salt of the fatty acid as a physical stabilizer exhibit a significant increase in apparent viscosity and remain stable against phase separation for an extended period of time. The thixotropic properties can be retained or improved using smaller levels of the thixotropic thickener than in the absence of the physical stabilizer. The stability, chlorine-bleach loss and cleaning ability of the compositions is further improved, when the composition pH is at least 11.2, when added to an aqueous wash both at a concentration of about 10 grams per liter.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: May 9, 1995
    Assignee: Colgate Palmolive Co.
    Inventors: Julien Drapier, Nagaraj S. Dixit
  • Patent number: 5403516
    Abstract: A surfactant blend for use in preparing clear liquid detergent compositions, the blend comprising a mixture of a short carbon chain anionic surfactant and a nonionic surfactant ethoxylated with from about 2 to about 7 moles of ethylene oxide. The anionic surfactant and nonionic surfactant are present in a weight ratio of from about 90:10 to about 50:50, respectively.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: April 4, 1995
    Assignee: Henkel Corporation
    Inventors: Patricia E. Bator, Barry A. Salka
  • Patent number: 5401432
    Abstract: Stable suspensions of zeolite particulates, in water, well adapted for detergency applications, have a pumpable low viscosity and include an effective viscosity reducing amount of a siliconate and/or a siliconate derivative and, advantageously, a suspension stabilizer, e.g., an alkaline earth metal cation or a biogum polysaccharide.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: March 28, 1995
    Assignee: Rhone-Poulenc Chimie
    Inventors: Daniel Jourbert, Marc Malassis
  • Patent number: 5393789
    Abstract: The invention relates to a disinfectant concentrate which includes amine and alcohol and is characterized in that the alcohol component includes at least one aromatic alcohol and the amine component includes at least one tertiary alkyl amine which is free of hydroxyl groups. It is also relates to a disinfectant which is preparable from the disinfectant concentrate, and to the use of the disinfectant concentrate or disinfectant as a bactericide, in particular a Mycobactericide, fungicide or virucide.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: February 28, 1995
    Assignee: Eastman Kodak Company
    Inventors: Heinz Eggensperger, Lower Bernd, Michael Mohr, Peter Goroncy-Bermes, Wolfgang Beilfuss
  • Patent number: 5389283
    Abstract: An effective phosphate free and organic solvent free aqueous acidic cleaner for soiled plastic surfaces is an aqueous solution or dispersion that has a pH in the range from about 4.4--about 6.1; that has a buffering capacity sufficiently high that at least 0.06 milliequivalents of a strong alkali per liter of the composition must be added to raise the pH of the composition by 0.1 pH unit; and that consists essentially of water and:(A) from about 0.4 to about 10 milliequivalents per kilogram of total composition ("mEq/kg") of acids selected from the group consisting of hydroxycarboxylic and dicarboxylic acids;(B) from about 1.4 to about 20 mEq/kg of salts containing anions of acids selected from the group consisting of hydroxycarboxylic and dicarboxylic acids; and(C) from about 0.21 to about 3.3 grams per kilogram of total composition ("g/kg") of nonionic surfactant; and, optionally,(D) an amount of hydrotrope material that is from about 0.25 to about 0.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: February 14, 1995
    Assignee: Henkel Corporation
    Inventor: Theodore D. Held, III
  • Patent number: 5380468
    Abstract: An aqueous alkaline cleaner and process are described for cleaning aluminum and tin surfaces. The aqueous alkaline cleaning solution comprises(A) at least one inorganic base;(B) at least one cationic surfactant which is a quaternary ammonium compound; and(C) water. Aluminum and tin surfaces cleaned with the cleaning compositions of the present invention are characterized by improved surface cleanliness and brightness.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: January 10, 1995
    Assignee: Man-Gill Chemical Company
    Inventors: Victor A. Gober, David A. Raney
  • Patent number: 5378409
    Abstract: A light-duty liquid or gel dishwashing detergent composition containing an alkyl ethoxy carboxylate surfactant mixture and calcium ions. The composition may require a calcium chelating agent, particularly at pH levels above 9, to prevent the formation of CaCO.sub.3 precipitates during storage. The compositions exhibit good grease removal, mildness to the skin, and storage stability.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: January 3, 1995
    Assignee: The Procter & Gamble Co.
    Inventor: Kofi Ofosu-Asante
  • Patent number: 5376310
    Abstract: A light-duty liquid or gel dishwashing detergent composition containing an alkyl ethoxy carboxylate surfactant, magnesium ions, a magnesium chelating agent, and a buffering agent to maintain the pH of the composition from about 8 to 10. High pH and magnesium ions of the composition provide good grease removal properties while maintaining mildness to the skin. The buffering agent and chelating agent of the composition provide superior physical and chemical stability during storage. The preferred type of dishwashing detergent composition is in the liquid form.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: December 27, 1994
    Assignee: The Procter & Gamble Co.
    Inventors: Thomas A. Cripe, Kofi Ofosu-Asante
  • Patent number: 5358654
    Abstract: This disclosure relates to pourable bleaching compositions comprising a solid substantially water-insoluble organic peroxy acid stably suspended in an aqueous medium containing at least two polymers wherein the first polymer is selected from polysaccharides having at least 60% of the units in the polysaccharide backbone being linked together by a 1,4-.beta.-oxy linkage and the second polymer is selected from the group consisting of polyvinyl alcohol, one or more cellulose derivatives and mixtures thereof. The bleaching composition also may contain an electrolyte and/or a safety booster. The preferred organic peroxy acid is 1,12-di peroxydodecanedioic acid.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: October 25, 1994
    Assignee: Akzo Nobel N.V.
    Inventors: Reinder Torenbeek, Jan J. H. Ploumen
  • Patent number: 5338491
    Abstract: Detergent compositions containing N-(1,2 propanediol) fatty acid amide surfactants of the general type RC(O)NR.sup.1 CH.sub.2 CHOHCH.sub.2 OH, especially where R.sup.1 is methyl or hydroxyethyl, are useful surfactants in laundry detergents, dishwashing liquids, shampoos, bar soaps, and hard surface cleaners. The amide surfactants provide good cleaning even in the absence of LAS surfactants.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: August 16, 1994
    Assignee: The Proctor & Gamble Co.
    Inventors: Daniel S. Connor, Jeffrey J. Scheibel, Yi-Chang Fu, Bruce P. Murch, Randall A. Watson, Kirsten L. McKillop
  • Patent number: 5328629
    Abstract: A method of producing a synthetic detergent soap base, comprising dissolving in an n-acyl sarcosine at an elevated temperature a fatty acid, and neutralizing the mixture with a base at a temperature sufficient to maintain fluidity to a pH of from about 4.5 to about 9.5. The resulting product is non-irritating and non-drying, and exhibits apparent skin substantivity and pleasant skin feel.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: July 12, 1994
    Assignee: Hampshire Chemical Corp.
    Inventor: Joseph J. Crudden
  • Patent number: 5147574
    Abstract: The present invention relates to liquid dispersoidal cleansing compositions comprising: 55% to 90% water; 5% to 20% saturated (low IV) higher (high titer) fatty acid potassium soap; 3% to 18% of free fatty acids; said soap and said free fatty acids having a ratio of about 1:0.5 to 1:1; and wherein said liquid cleanser has a viscosity of 4,000 cps to about 100,000 cps at about 25.degree. C.; and wherein said liquid cleanser is phase stable.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: September 15, 1992
    Assignee: The Procter & Gamble Company
    Inventors: Neil A. MacGilp, Kathleen G. Baier, Richard M. Girardot, Efrain Torres