Patents by Inventor Hans-Christian Raths

Hans-Christian Raths 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: 6666217
    Abstract: A cleaning composition containing a gemini surfactant corresponding to formula I: R—CHOH—CH2—[OCH2CH2]x—O—CH2—CHOH—R  (I) wherein R is a linear or branched alkyl and/or alkenyl radical having from about 4 to 22 carbon atoms, and x is a number from about 5 to 90.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: December 23, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Michael Elsner, Manfred Weuthen, Hans-Christian Raths
  • Publication number: 20030078182
    Abstract: Mixtures comprising: (a) a gemini surfactant of the formula (I)
    Type: Application
    Filed: August 7, 2002
    Publication date: April 24, 2003
    Inventors: Ditmar Kischkel, Hans-Christian Raths, Manfred Weuthen, Michael Elsner
  • Publication number: 20030078176
    Abstract: The invention relates to gemini surfactants, optionally in combination with ingredients customary in dishwashing detergents and cleaners, optionally with further nonionic surfactants and anionic surfactants, and to the use of such gemini surfactants for improving the wetting behavior and the compatibility with plastics, for the simplified preparation of solid cleaners and as foam-suppressing surfactant in rinse aid formulations.
    Type: Application
    Filed: May 6, 2002
    Publication date: April 24, 2003
    Inventors: Michael Elsner, Manfred Weuthen, Hans-Christian Raths
  • Patent number: 6531439
    Abstract: Surfactant combinations containing C12-18 alkyl sulfates wherein less than 10% by weight of the C12-18 alkyl sulfates, based on the C12-18 alkyl sulfates, have carbon chains with fewer than 14 carbon atoms and C9-13 alkyl benzenesulfonates in a weight ratio of 1:10 to 10:1. The combinations are useful in powder and granular as well as liquid washing and cleaning detergents.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: March 11, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Georg Meine, Andreas Syldath, Dieter Nickel, Thomas Mueller-Kirschbaum, Dagmar Zaika, Ansgar Behler, Hans-Christian Raths, Peter Sandkuehler
  • Publication number: 20030045448
    Abstract: Cleaning compositions containing hydroxy mixed ethers of the general formula (I) are described:
    Type: Application
    Filed: January 31, 2002
    Publication date: March 6, 2003
    Inventors: Manfred Weuthen, Hans-Christian Raths, Michael Elsner
  • Publication number: 20030036496
    Abstract: The invention relates to gemini surfactants, optionally in combination with ingredients customary in rinse aids, optionally with further nonionic surfactants and anionic surfactants, and to the use of the gemini surfactants for improving the wetting behavior in rinse aids.
    Type: Application
    Filed: May 3, 2002
    Publication date: February 20, 2003
    Inventors: Michael Elsner, Manfred Weuthen, Hans-Christian Raths
  • Publication number: 20030027736
    Abstract: The invention relates to highly ethoxylated hydroxy mixed ethers, alone or in conjunction with customary detergent and cleaning product ingredients, together if desired with further nonionic surfactants and anionic surfactants, and to the use of such hydroxy mixed ethers for improving wetting behavior and plastics compatibility.
    Type: Application
    Filed: January 24, 2002
    Publication date: February 6, 2003
    Inventors: Hans-Christian Raths, Manfred Weuthen, Michael Elsner, Detlev Stanislowski, Karl-Heinz Schmid
  • Publication number: 20030008801
    Abstract: The invention relates to gemini surfactants, optionally in combination with ingredients customary in laundry detergents, dishwashing detergents and cleaners, optionally with further nonionic surfactants and anionic surfactants, and to the use of such gemini surfactants for improving the wetting behavior and the compatibility with plastics, for the simplified preparation of solid cleaners and as foam-suppressing surfactant in rinse aid formulations.
    Type: Application
    Filed: May 6, 2002
    Publication date: January 9, 2003
    Inventors: Hans-Christian Raths, Manfred Weuthen, Michael Elsner
  • Patent number: 6498268
    Abstract: A method of producing alkylene glycol esters of unbranched aliphatic dicarboxylic acids with limited homolog distribution, and the use of the esters produced as monomer structural units for producing polymers are disclosed.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: December 24, 2002
    Assignee: Cognis Deutschland GmbH
    Inventor: Hans-Christian Raths
  • Patent number: 6429324
    Abstract: Processes for preparing alkylene glycol esters of dimer fatty acids according to the general formula (I): H—(OR)n—O(O)C—R1—C(O)O—(RO)n—H  (I) wherein R1 represents a hydrocarbon radical of a dimer fatty acid having from about 24 to about 44 carbon atoms, and each R independently represents an alkyl radical having from about 2 to about 3 carbon atoms, and each n independently represents a number of from about 0.25 to about 3.0, are described. The processes include: (a) providing dimer fatty acids; (b) providing an alkylene oxide; and (c) reacting the dimer fatty acids and the alkylene oxide, in the presence of a catalytically-effective amount of at least one alkanolamine.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: August 6, 2002
    Assignee: Cognis Deutschland and GmbH
    Inventors: Hans-Christian Raths, Frank Bongardt, Ansgar Behler, Juergen Roeder
  • Patent number: 6403529
    Abstract: An aqueous agricultural composition containing: (a) at least one water-insoluble agrochemical; and (b) an additive corresponding to formula (I): RO—(C2H4O)n(C3H6O)m—R′  (I) wherein RO is an alcohol selected from the group consisting of branched or linear, saturated or unsaturated monohydric alcohols having from 1 to 6 carbon atoms or polyols having from 2 to 12 carbon atoms and from 2 to 6 hydroxyl groups, and R′ is hydrogen or an ester group —CO—R″ wherein R″ is a branched or linear, saturated or unsaturated alkyl group having from 5 to 20 carbon atoms, m is a number from 1 to 10 and n is a number up to 40, and wherein the agrochemical and the additive are present in a ratio by weight of from 1:2 to 1:5.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: June 11, 2002
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Horst-Werner Wollenweber, Ansgar Behler, Hans Christian Raths, Hans-Georg Mainx, Juergen Reinhardt
  • Patent number: 6312513
    Abstract: Pigment concentrates comprising a pigment, a liquid carrier medium and a dimerdiolalkoxylate, wherein a dimer portion of the dimerdiolalkoxylate comprises from about 36 to about 44 carbon atoms, and wherein the at least one dimerdiolalkoxylate has from about 1 to about 200 moles of alkylene oxide per mole of dimerdiol, are described in conjunction with methods of preparing the same.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: November 6, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Rainer Hoefer, Heinz-Guenther Schulte, Hans-Christian Raths, Harald Frommelius, Stefan Gollnick, Ulrich Pegelow
  • Patent number: 6312514
    Abstract: Pigment concentrates comprising a pigment, a liquid carrier medium and a diol alkoxylate of the general formulae (I), (II) and/or (III) are described in conjunction with methods of preparing the same.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: November 6, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Heinz-Guenther Schulte, Rainer Hoefer, Hans-Christian Raths, Harald Frommelius, Stefan Gollnick
  • Patent number: 6300508
    Abstract: Fatty acid esters of alkylene glycols corresponding to the formula R1COO(AlkO)nH are thickeners for aqueous surfactant solutions, particularly for personal care products.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: October 9, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans-Christian Raths, Norman Milstein, Werner Seipel
  • Patent number: 6277359
    Abstract: A composition containing: (a) a gemini surfactant selected from the group consisting of a dimer alcohol-bis-sulfate, a dimer alcohol-bis-ether sulfate, a trimer alcohol-tris-sulfate, a trimer alcohol-tris-ether sulfate, and mixtures thereof; (b) aluminum chlorohydrate; and (c) a component selected from the group consisting of an esterase inhibitor, a bactericidal agent, a bacteriostatic agent, and mixtures thereof.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: August 21, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Hans-Christian Raths, Manfred Biermann, Karl-Heinz Maurer
  • Patent number: 6235696
    Abstract: Highly foaming detergent mixtures comprising: (a) at least one fatty acid polyglycol ester sulfate of the general formula (I): R1COO(AO)xSO3X  (I) wherein R1CO represents an acyl group and R1 is selected from the group consisting of linear, branched, saturated and unsaturated chains having from about 6 to about 22 carbon atoms, x is an integer having a value of from 1 to 3, each AO independently represents a CH2CH2O, CH2CH(CH3)O or CH(CH3)CH2O group, and X is selected from the group consisting of an alkali metal, an alkaline earth metal, ammonium, an alkylammonium, an alkanolammonium or a glucammonium; and (b) at least one additional surfactant selected from the group consisting of anionics, nonionics, cationics, amphoterics and zwitterionics are disclosed. The disclosed detergent mixtures exhibit advantageous foaming performance and a high level of foam stability even in the presence of hard water and/or oil.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: May 22, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Hermann Hensen, Ullrich Bernecker, Joerg Kahre, Werner Seipel, Holger Tesmann, Thomas Engels, Hans-Christian Raths, Bernd Fabry
  • Patent number: 6235913
    Abstract: A method of producing fatty acid polyglycol ester sulfates of the general formula (I): R1COO(AO)nSO3M  (I) is disclosed, wherein R1CO represents a linear or branched, aliphatic, saturated and/or unsaturated acyl radical with 6 to 22 carbon atoms, AO represents CH2CH2O, CHCH3CH2O and/or CH2CHCH3, n represents a number from about 0.5 to about 5 and M represents a cation. The disclosed process comprises the sulfation of fatty acid polyglycol esters followed by neutralization, wherein the neutralization is carried out at a pH of from about 5 to about 9.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: May 22, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Hans-Christian Raths, Thomas Engels, Rainer Rueben, Joerg Kahre
  • Patent number: 5936107
    Abstract: Fatty acid polyethylene glycol esters of the formula (I):R.sup.1 CO(CH.sub.2 CH.sub.2 O).sub.n H (I)wherein R.sup.1 CO is a linear or branched, aliphatic, saturated and/or unsaturated acyl group having from about 6 to about 22 carbon atoms and n is a number from 0.5 to 1.5 are made by reacting ethylene oxide and a fatty acid in the presence of an alkanolamine in a homogeneous reaction medium.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: August 10, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans-Christian Raths, Ansgar Behler, Norman Milstein
  • Patent number: 5922670
    Abstract: Dimer alcohol bis-sulfates, trimer alcohol tris-sulfates and ether sulfates thereof are prepared by reacting dimer alcohols, trimer alcohols, or alkylene oxide adducts thereof with a sulfating agent, and then neutralizing the reaction product with an aqueous base material.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: July 13, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Georg Knuebel, Alfred Westfechtel, Gerhard Hermanns, Rainer Hoffmann, Hans-Christian Raths
  • Patent number: 5677273
    Abstract: A wetting agent composition for pretreating textiles containing mixed ethers corresponding to formula I: ##STR1## wherein R.sup.1 is a strictly linear alkyl radical containing from 8 to 10 carbon atoms, R.sup.2 is an alkyl radical containing from 1 to 4 carbon atoms, m is a number from 0.5 to 2 and n is a number from 6 to 9.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: October 14, 1997
    Inventors: Karl-Heinz Schmid, Ingo Wegener, Anja Hanke, Michael Neuss, Hans-Christians Raths