Patents by Inventor Ulrike Mahring

Ulrike Mahring 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: 10266658
    Abstract: Crosslinked aminosiloxanes obtainable by reaction of identical or different aminosiloxanes with identical or different epoxide components which are water-soluble hydrocarbons, the hydrocarbons comprising oxygen as well as carbon, and optionally further elements selected from nitrogen, sulphur and phosphorus, the hydrocarbon having on average more than one terminal epoxy group, the epoxy group being a carbooxirane radical, and, further, not more than 50% of all the amino groups having undergone reaction with an epoxide group.
    Type: Grant
    Filed: February 28, 2015
    Date of Patent: April 23, 2019
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Frauke Henning, Jörg Peggau, Andrea Lohse, Ulrike Mahring, Fuming Chen
  • Publication number: 20180009954
    Abstract: Crosslinked aminosiloxanes obtainable by reaction of identical or different aminosiloxanes with identical or different epoxide components which are water-soluble hydrocarbons, the hydrocarbons comprising oxygen as well as carbon, and optionally further elements selected from nitrogen, sulphur and phosphorus, the hydrocarbon having on average more than one terminal epoxy group, the epoxy group being a carbooxirane radical, and, further, not more than 50% of all the amino groups having undergone reaction with an epoxide group.
    Type: Application
    Filed: February 28, 2015
    Publication date: January 11, 2018
    Inventors: Frauke Henning, Jörg Peggau, Andrea Lohse, Ulrike Mahring, Fuming Chen
  • Patent number: 8796198
    Abstract: A process for producing amino-functional polysiloxanes by reacting the components A) identical or different terminally hydroxy-functional, linear or branched polysiloxanes, B) identical or different alkoxysilanes of the formula R1xR23-xSiR3??(I) where R1 is identical or different alkyl radicals having 1 to 4 carbon atoms, R2 is identical or different alkoxy radicals having 1 to 4 carbon atoms, R3 is an organic radical having at least one nitrogen atom, x=0 to 2, and C) water, in the presence of D) one or more phosphorus-containing, Brønsted-acidic compounds, to the correspondingly obtainable polysiloxanes containing nitrogen-containing groups, and to the use thereof are provided.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: August 5, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Frauke Henning, Andrea Lohse, Ulrike Mahring, Dirk Kuppert
  • Patent number: 8685376
    Abstract: The invention relates to emulsifiers comprising glycerin-modified organopolysiloxanes and to their use for the preparation of extraordinarily stable emulsions and dispersions.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: April 1, 2014
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Karin Czech, Ulrike Mahring, Michael Ferenz, Christian Hartung, Hannelore Foetsch, Juergen Meyer, Sascha Herrwerth
  • Publication number: 20130040875
    Abstract: A process for producing amino-functional polysiloxanes by reacting the components A) identical or different terminally hydroxy-functional, linear or branched polysiloxanes, B) identical or different alkoxysilanes of the formula R1xR23-xSiR3??(I) where R1 is identical or different alkyl radicals having 1 to 4 carbon atoms, R2 is identical or different alkoxy radicals having 1 to 4 carbon atoms, R3 is an organic radical having at least one nitrogen atom, x=0 to 2, and C) water, in the presence of D) one or more phosphorus-containing, Brønsted-acidic compounds, to the correspondingly obtainable polysiloxanes containing nitrogen-containing groups, and to the use thereof are provided.
    Type: Application
    Filed: August 13, 2012
    Publication date: February 14, 2013
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Frauke Henning, Andrea Lohse, Ulrike Mahring, Dirk Kuppert
  • Publication number: 20100266651
    Abstract: The invention relates to emulsifiers comprising glycerin-modified organopolysiloxanes and to their use for the preparation of extraordinarily stable emulsions and dispersions.
    Type: Application
    Filed: April 16, 2010
    Publication date: October 21, 2010
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Karin Czech, Ulrike Mahring, Michael Ferenz, Christian Hartung, Hannelore Fötsch, Jürgen Meyer, Sascha Herrwerth