Patents by Inventor Rita Koester

Rita Koester 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).

  • Publication number: 20120156385
    Abstract: Provided are the application of waxes, preferably in the form of aqueous wax dispersions comprising a dispersing agent (a) and a wax component (b) and optionally additional auxiliary and additive materials (c). The mechanical properties of textile fibers treated with these aqueous wax dispersion compositions are improved. In particular, the tear resistance of the textile fibers are improved.
    Type: Application
    Filed: June 19, 2010
    Publication date: June 21, 2012
    Applicant: Cognis IP Management GmbH
    Inventors: Jürgen Falkowski, Karlheinz Hill, Rita Köster, Josefine Schröder, Manfred Weuthen
  • Patent number: 7871971
    Abstract: Rinse agents for machine dishwashing which contain alkoxylated carboxylic acid ester(s), and other optional additives, are described. Methods of rinsing tableware surfaces using the described rinsing agents during machine washing are also described.
    Type: Grant
    Filed: October 30, 1999
    Date of Patent: January 18, 2011
    Assignee: Cognis IP Management GmbH
    Inventors: Rita Koester, Ansgar Behler, Karl-Heinz Schmid, Michael Neuss
  • Patent number: 7332466
    Abstract: A low-foaming surfactant composition comprising: (a) a hydroxy mixed ether corresponding to formula I: R1O[CH2CH(CH3)O]x(CH2CHR2O)y[CH2CH(OH)R3]z??(I) wherein R1 is an alkyl and/or alkylene group containing from 4 to 18 carbon atoms, R2 is hydrogen, R3 is an alkyl group having from 2 to 22 carbon atoms, x is 0, y is a number from 1 to 30, and z is a number from 1 to 3; and (b) a low-foaming nonionic surfactant selected from the group consisting of an optionally end-capped fatty alcohol polyethylene glycol/polypropylene glycol ether corresponding to formula II: R4O(CH2CH2O)n[CH2(CH3)CHO]mR5 ??(II) wherein R4 is an alkyl and/or alkylene group containing from 8 to 22 carbon atoms, R5 is hydrogen or an alkyl group containing from 1 to 8 carbon atoms, n is a number from 1 to 15 and m is a number up to 10, an optionally end-capped fatty alcohol polypropylene glycol/polyethylene glycol ether corresponding to formula II: R6O[CH2(CH3)CHO]p(CH2CH2O)qR7 ??(III) wherein R6 is an alkyl and/or alkylene group having f
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: February 19, 2008
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Karl-Heinz Schmid, Rita Koester
  • Publication number: 20050130865
    Abstract: A low-foaming surfactant composition comprising: (a) a hydroxy mixed ether corresponding to formula I: R1O[CH2CH(CH3)O]x(CH2CHR2O)y[CH2CH(OH)R3]z,??(I) wherein R1 is an alkyl and/or alkylene group containing from 4 to 18 carbon atoms, R2 is hydrogen, R3 is an alkyl group having from 2 to 22 carbon atoms, x is 0, y is a number from 1 to 30, and z is a number from 1 to 3; and (b) a low-foaming nonionic surfactant selected from the group consisting of an optionally end-capped fatty alcohol polyethylene glycol/polypropylene glycol ether corresponding to formula II: R4O(CH2CH2O)n[CH2(CH3)CHO]mR5??(II) wherein R4 is an alkyl and/or alkylene group containing from 8 to 22 carbon atoms, R5 is hydrogen or an alkyl group containing from 1 to 8 carbon atoms, n is a number from 1 to 15 and m is a number up to 10, an optionally end-capped fatty alcohol polypropylene glycol/polyethylene glycol ether corresponding to formula II: R6O[CH2(CH3)CHO]p(CH2CH2O)qR7??(III) wherein R6 is an alkyl and/or alkylene group having
    Type: Application
    Filed: November 17, 2004
    Publication date: June 16, 2005
    Inventors: Karl-Heinz Schmid, Rita Koester
  • Publication number: 20040139990
    Abstract: Methods of treating a fabric wherein a fabric to be treated is provided, a fabric treatment composition comprising a low molecular weight protein hydrolyzate is provided; and the fabric is contacted with the fabric treatment composition, are described along with methods of reducing the inflammatory and/or skin-irritating effects of a fabric treatment composition by combining a low molecular weight protein hydrolyzate and a fabric treatment composition.
    Type: Application
    Filed: November 6, 2003
    Publication date: July 22, 2004
    Inventors: Rolf Wachter, Rita Koester, Ditmar Kischkel
  • Publication number: 20040139553
    Abstract: Methods of treating a fabric wherein a fabric to be treated is provided, a fabric treatment composition comprising a protein fatty acid condensate is provided; and the fabric is contacted with the fabric treatment composition, are described along with methods of reducing the inflammatory and/or skin-irritating effects of a fabric treatment composition by combining a protein fatty acid condensate and a fabric treatment composition.
    Type: Application
    Filed: November 6, 2003
    Publication date: July 22, 2004
    Inventors: Rolf Wachter, Rita Koester, Ditmar Kischkel
  • Publication number: 20040138089
    Abstract: Methods of treating a fabric wherein a fabric to be treated is provided, a fabric treatment composition comprising a quaternized protein hydrolyzate is provided; and the fabric is contacted with the fabric treatment composition, are described along with methods of reducing the inflammatory and/or skin-irritating effects of a fabric treatment composition by combining a quaternized protein hydrolyzate and a fabric treatment composition.
    Type: Application
    Filed: November 6, 2003
    Publication date: July 15, 2004
    Inventors: Rolf Wachter, Rita Koester, Ditmar Kischkel
  • Patent number: 6732748
    Abstract: A rinse aid composition containing: (a) a hydroxy mixed ether corresponding to formula I: R1O[CH2CHR2O]x[CH2CHR3O]yCH2CH(OH)R4  (I) wherein R1 is an alkyl and/or alkenyl group containing from about 4 to 22 carbon atoms, R2 is hydrogen or a methyl or an ethyl group, R3 is hydrogen or a methyl or an ethyl group, R4 is an alkyl group containing from about 2 to 22 carbon atoms, x is a number up to 30, y is a number up to 30, and x+y is greater than or equal to 1; (b) an alkyl and/or alkenyl oligoglycoside corresponding to formula II: R5O—[G]p  (II) wherein R5 is an alkyl and/or alkenyl group containing from about 4 to 22 carbon atoms, G is a sugar unit containing 5 or 6 carbon atoms, and p is a number from 1 to 10; and (c) a nonionic co-surfactant, and wherein (a) and (b) are present in the composition in a ratio by weight of from about 10:0.1 to 1:10.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: May 11, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Joerg Kahre, Michael Elsner, Rita Koester, Karl Heinz Schmid
  • Patent number: 6683035
    Abstract: Gel compositions comprising a thickener and a surfactant component including an alkoxylated carboxylic acid ester corresponding to general formula (I): wherein R1C(O) represents an aliphatic acyl group, each AlkO independently represents an alkoxylate selected from the group consisting of CH2CH2O, CHCH3CH2O and CH2CHCH3O, n is a number of from 1 to 20, and R2 represents an aliphatic alkyl group, are described. The use of such gel compositions in methods of providing controlled release of cleaning agents to toilets is also described, in addition to the containers used in such methods.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: January 27, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Rita Koester, Ansgar Behler, Jutta Stute, Ditmar Kischkel
  • Patent number: 6660706
    Abstract: Multipurpose cleaners are comprised of an alkoxylated carboxylic acid ester corresponding to the formula (I): wherein R1CO is an aliphatic acyl group, AlkO is CH2CH2O, CHCH3CH2O, CH2CHCH3O, or a combination thereof, n is a number from 1 to 20 and R2 is an aliphatic alkyl group, and a betaine, an amine oxide or a combination thereof.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: December 9, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Rita Koester, Ansgar Behler, Karl-Heinz Schmid, Michael Neuss
  • Publication number: 20030158071
    Abstract: A hard surface cleaning composition containing: (a) a hydroxy mixed ether corresponding to formula I:
    Type: Application
    Filed: November 20, 2002
    Publication date: August 21, 2003
    Inventors: Joerg Kahre, Michael Elsner, Rita Koester, Karl Heinz Schmid
  • Patent number: 6602838
    Abstract: A dishwashing detergent composition containing: (a) an alkoxylated carboxylic acid ester; and (b) a surfactant selected from the group consisting of an anionic surfactant, an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: August 5, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Rita Koester, Ansgar Behler, Michael Neuss, Karl-Heinz Schmid, Michael Elsner
  • Publication number: 20030139306
    Abstract: The invention relates to clear rinsing agents, for machine dish washing, which comprise hydroxy mixed ethers and alkyl or alkenyl oligoglycosides, optionally, further non-ionic surfactants, water and further auxiliaries and additives. The invention further relates to the use of said mixtures in clear rinsing agents and a method for rinsing and cleaning hard surfaces.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 24, 2003
    Inventors: Joerg Kahre, Michael Elsner, Rita Koester, Karl Heinz Schmid
  • Patent number: 6521578
    Abstract: A hard surface cleaning composition containing: (a) from about 1 to 10% by weight of an alkyl or alkenyl oligoglycoside; (b) from about 1 to 10% by weight of an anionic surfactant selected from the group consisting of an alkyl or alkenyl sulfate, alkyl or alkenyl ether sulfate, a betaine, and mixtures thereof; (c) from about 0.1 to 15% by weight of an ethoxylated fatty amine having a formula: R—NH(CH2CH2O)zH wherein R is a linear or branched, alkyl or alkenyl group having from about 6 to 22 carbon atoms, and z is a number from 1 to about 10; and (d) remainder to 100% water, all weights being based on the weight of the composition, and wherein the composition has a pH value of from about 1.5 to 3.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: February 18, 2003
    Assignee: Cognis Deutschland GmbH
    Inventors: Jutta Stute, Rita Koester, Ditmar Kischkel, Antonino Burgo
  • Publication number: 20020173434
    Abstract: Methods of enhancing the foam properties and skin compatibility of cleaning compositions are described wherein (a) a cleaning composition comprising an alk(en)yl oligoglycoside is provided; (b) a dicarboxylic acid monoester is provided; and (c) the cleaning composition and the hydroxycarboxylic acid partial ester are combined. Combinations of alk(en)yl oligoglycosides and dicarboxylic acid monoesters are also described.
    Type: Application
    Filed: November 8, 2001
    Publication date: November 21, 2002
    Inventors: Ansgar Behler, Karl-Heinz Schmid, Rita Koester
  • Publication number: 20020147121
    Abstract: Methods of enhancing the foam properties and skin compatibility of cleaning compositions are described wherein (a) a cleaning composition comprising an alk(en)yl oligoglycoside is provided; (b) a hydroxycarboxylic acid partial ester is provided; and (c) the cleaning composition and the hydroxycarboxylic acid partial ester are combined. Combinations of alk(en)yl oligoglycosides and hydroxycarboxylic acid partial esters are also described.
    Type: Application
    Filed: November 8, 2001
    Publication date: October 10, 2002
    Inventors: Ansgar Behler, Karl-Heinz Schmid, Rita Koester
  • Patent number: 6384009
    Abstract: A process for reducing the viscosity of an aqueous surfactant composition involving: (a) providing an aqueous surfactant composition containing at least one surfactant, other than an alkoxylated carboxylic acid ester; (b) providing a viscosity-reducing agent corresponding to formula (I): wherein R1CO is an aliphatic acyl group containing from 6 to 18 carbon atoms, AlkO represents CH2CH2O—, CHCH3CH2O—, CH2—CHCH3O, n is a number from 3 to 15, and R2 is an aliphatic alkyl group having from 1 to 22 carbon atoms; and (c) adding a viscosity-reducing effective amount of the viscosity-reducing agent to the aqueous surfactant composition.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: May 7, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Rita Koester, Ansgar Behler, Michael Neuss, Karl-Heinz Schmid
  • Patent number: 6057375
    Abstract: A method of controlling or preventing foam in an aqueous system is provided, wherein an effective amount of an alkoxylated, epoxidized fatty compound that has been ring-opened with a nucleophile is determined and added to the system. After ring opening with the nucleophile, the epoxidized fatty compound is alkoxylated with an alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, and butylene oxide.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: May 2, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Horst-Werner Wollenweber, Klaus Hornfeck, Dieter Kaps, Bernhard Nellessen, Rita Koester, Wolfgang Drees, Peter Daute
  • Patent number: 5914006
    Abstract: A process for controlling the deposition of stickies from paper stock suspensions during papermaking by adding to the paper stock suspensions from 0.001% to 5.0% by weight based on the weight of fibrous paper stock, of alkoxylation products obtained by reaction of alkylene oxides with C.sub.10-22 carboxylic acid derivatives or C.sub.10-22 carboxylic acids containing functional groups with at least one OH group in the 9, 10, 13 or 14 position.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: June 22, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernhard Nellessen, Rita Koester, Klaus Hornfeck, Berthold Schreck, Peter Daute
  • Patent number: 5545332
    Abstract: Finely divided solids suspensions can be dewatered by adding to the solids suspension a mixed hydroxy ether of the formula ##STR1## wherein R.sup.1 is a linear hydroxy alkyl group containing from 2 to 16 carbon atoms with the hydroxyl group on the carbon atom adjacent to the carbon atom with the ether linkage and R.sup.2 is a linear alkyl group with 1 to 15 carbon atoms with the proviso that the sum of the total carbon atoms in R.sup.1 and R.sup.2 is 5 to 17, R.sup.3 is a linear or branched alkyl group with 1 to 12 carbon atoms and n is a number of from 1 to 20. The mixed hydroxy ethers are readily biodegradable, generate very little foam and have a low solidification point.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: August 13, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rita Koester, Gerhard Stoll, Peter Daute