Patents by Inventor Rolf Scharf

Rolf Scharf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5062979
    Abstract: The invention relates to aqueous, clear solution-forming, substantially soap free lubricant compositions and to the use of the lubricant compositions according to the invention, especially as lubricants for the transport of glass bottles or poly(ethylene terephthalate) bottles. The substantially neutral aqueous lubricant compositions (pH 6-8) contain alkyl benzenesulfonates, partial phosphate esters with alkoxylated aliphatic alcohols, and aliphatic carboxylic acids, optionally in addition to typical solubilizers, solvents, foam inhibitors and disinfectants.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: November 5, 1991
    Assignee: Ecolab Inc.
    Inventors: Rolf Scharf, Karl-Heinz Schmitz
  • Patent number: 4954283
    Abstract: The invention is cleaning compositions containing Polyethylene-glycol ethers of the formulaR.sub.1 --(CH.sub.2 CH.sub.2 O).sub.n --R.sub.2 (1)in whichR.sub.1 is a straight-chain or branched alkyl- or alkenyl radical having from 20 to 28 carbon atomsR.sub.2 is an alkyl radical having from 4 to 8 carbon atoms and n is an integer from about 6 to about 20as a foam-suppressing additive. The cleaning compositions are stable over a broad temperature range and having low foaming characteristics particularly at about ambient temperatures.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: September 4, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Karl H. Schmid, Alfred Meffert, Gilbert Schenker, Adolf Asbeck, Rolf Scharf
  • Patent number: 4560493
    Abstract: This invention relates to a liquid residue reducing composition. More particularly, this invention relates to a liquid residue reducing composition which comprises an aqueous solution containing an effective amount of octane-1-phosphonic acid or a water-soluble salt thereof and to the method of using said composition.
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: December 24, 1985
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rolf Scharf, Ferdinand Koch, Hans-Joachim Schlussler
  • Patent number: 4548729
    Abstract: Foam-inhibiting compositions for use in an aqueous solution containing polyethylene glycol ethers corresponding to the following formulaR.sup.1 --O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.2in which R.sup.1 represents a linear or branched alkyl or alkenyl radical containing from 8 to 18 carbon atoms, R.sup.2 represents an alkyl radical containing from 4 to 8 carbon atoms and n is a number of from 7 to 12, mixtures of the same with a polyglycerol polyethylene glycol alkyl ether of 1 part by weight of polyglycerol having a hydroxyl number in the range of from 900 to 1200 adducted with from 4 to 20 parts by weight of ethylene oxide and etherified at the free hydroxyl groups with alkyls having from 4 to 8 carbon atoms, and their use as foam-inhibiting additives for low-foam cleaning agents.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: October 22, 1985
    Assignee: Henkel KGaA
    Inventors: Karl Schmid, Horst Baumann, Jurgen Geke, Hans-Gunther Germscheid, Werner Ludecke, Robert Piorr, Christian Rossmann, Rolf Scharf, Hans-Joachim Schlussler
  • Patent number: 4522740
    Abstract: Polyethylene glycol ethers of the type obtained by the addition of from 4 to 20 parts by weight of ethylene oxide onto 1 part by weight of polyglycerol having a hydroxyl number in the range from 900 to 1200 and subsequent etherification of the free hydroxyl groups with linear or branched alkyl halides containing from 4 to 8 carbon atoms, and their use as foam-inhibiting additives for low-foam cleaning agents.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: June 11, 1985
    Assignee: Henkel Kommanditgesellschaft
    Inventors: Karl Schmid, Horst Baumann, Jurgen Geke, Hans-Gunther Germscheid, Werner Ludecke, Robert Piorr, Christian Rossmann, Rolf Scharf, Hans-Joachim Schlussler
  • Patent number: 4229409
    Abstract: A method of inhibiting the corrosion of aluminum in contact with an alkaline solution comprising adding 2-phosphono-butane-1,2,4-tricarboxylic acid or a water-soluble salt thereof as inhibitor to the alkaline solution.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: October 21, 1980
    Assignee: Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA)
    Inventors: Rolf Scharf, Hans-Joachim Schlussler, Friedrich Staschkiewicz
  • Patent number: 4165375
    Abstract: A low-foaming disinfecting agent for spraying or sprinkling applications comprising a quaternary ammonium compound and a foam-inhibiting amount of at least one lower alkyl laurate.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: August 21, 1979
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans-Jurgen Berger, Ferdinand Koch, Rolf Scharf, Hans-Joachim Schlussler
  • Patent number: 3959168
    Abstract: A synergistic sequestering agent composition comprising (a) 1-hydroxyethane-1,1-diphosphonic acid and its alkali metal and ammonium salts, or, preferably and (b) aminotrimethylenephosphonic acid and its alkali metal and ammonium salts, as well as (c) a phosphonopolycarboxylic acid selected from the group consisting of phosphonosuccinic acid, methylphosphonosuccinic acid and 2-phosphonobutane-1,2,4-tricarboxylic acid and their alkali metal and ammonium salts. The said mixture of sequestering agents is useful as a sequestering agent for aqueous solutions containing bivalent and trivalent cations especially in sub-stoichiometric amounts.
    Type: Grant
    Filed: May 8, 1974
    Date of Patent: May 25, 1976
    Assignee: Henkel & Cie G.m.b.H.
    Inventors: Hans Gunther Germscheid, Hans-Rudiger Kranick, Hans-Jorgen Rehm, Rolf Scharf, Hans-Joachim Schlusser