Patents by Inventor Stefan Podubrin

Stefan Podubrin 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: 6780829
    Abstract: A surfactant composition containing: (a) from about 75 to 97% by weight of a fatty alcohol sulfate; and (b) from about 3 to 25% by weight of an olefin sulfonate, all weights being based on the total weight of the composition, and wherein the composition is in granular form.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: August 24, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Ditmar Kischkel, Manfred Weuthen, Jutta Stute, Stefan Podubrin
  • Patent number: 6667043
    Abstract: A process for making technical di/triglyceride mixtures involving: (a) providing a vegetable oil; and (b) partially transesterifying the vegetable oil by reacting it with a component selected from the group consisting of a mixture of glycerol and a fatty acid corresponding to formula I: R1COOH  (I) wherein R1CO is an acyl group having from 6 to 10 carbon atoms, a mixture of glycerol and a methyl ester of the fatty acid of formula I, and a triglyceride based on the fatty acid of formula I.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: December 23, 2003
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Stefan Podubrin, Achim Ansmann, Rolf Kawa, Richard Ridinger
  • Patent number: 6310106
    Abstract: A process for breaking an emulsion into a water phase and an oil phase involving: (a) providing an emulsion containing an oil phase and a water phase; (b) providing an alkoxylated C10-24 carboxylic acid ester derived by the addition of ethylene oxide and/or propylene oxide onto a ring opened epoxidized C10-24 carboxylic acid triglyceride which is ring opened with a C6-18 carboxylic acid; and (c) contacting the emulsion with a demulsifying effective amount of the alkoxylated C10-24 carboxylic acid ester. Said process has application on crude oil emulsions.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: October 30, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Stefan Podubrin, Wolfgang Breuer, Claus-Peter Herold, Andreas Heidbreder, Thomas Foerster, Martina Hollenbrock
  • Patent number: 6289989
    Abstract: A process for cleaning boreholes, drilling equipment and drill cuttings is presented involving the application of a cleaning composition to surfaces and the subsequent removal of the cleaning composition and soils. The cleaning composition contains a cleaning additive having alkoxylation products obtained by the reaction of ethylene oxide, propylene oxide, butylene oxide or mixtures thereof with an OH-containing C10-22 carboxylic acid or derivative thereof, where structural units corresponding to formula (I): comprise one or both of the 9/10 or 13/14 positions, wherein R1 is a hydrogen atom, an OH group or a OR2 group, R2 is an alkyl group containing 1 to 18 carbon atoms, an alkenyl group containing 2 to 18 carbon atoms or a group corresponding to formula (II): where R3 is a hydrogen atom, an alkyl group containing 1 to 21 carbon atoms or an alkylene group containing 2 to 21 carbon atoms. The cleaning composition is biodegradable.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: September 18, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Heinz Mueller, Claus-Peter Herold, Berthold Schreck, Stefan Podubrin, Andreas Heidbreder
  • Patent number: 6235702
    Abstract: A concentrated aqueous pearlescent composition containing: (a) from 1 to 99.9% by weight of an ester formed by reacting a hydroxy-functionalized carboxylic acid with a fatty alcohol containing from 6 to 22 carbon atoms; (b) from 0.1 to 90% by weight of an emulsifier selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an ampholytic surfactant, a zwitterionic surfactant, an esterquat, and mixtures thereof; and (c) up to 40% by weight of a polyol, all weights being based on the total weight of the composition.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: May 22, 2001
    Assignee: Henkel Kommaditgesellschaft auf Aktien
    Inventors: Achim Ansmann, Rolf Kawa, Stefan Podubrin, Alfred Westfechtel