Patents by Inventor Wilfried Knott

Wilfried Knott 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).

  • Polyether siloxane-containing alkoxylation products by direct alkoxylation of organomodified ?,?-dihydroxysiloxanes over double metal cyanide (DMC) catalysts, and also process for producing them
    Patent number: 8309673
    Abstract: Novel silicone polyethers by alkoxylating polymerization of epoxide monomers with (poly)organosiloxanes starting from an ?,?-dihydroxysiloxane as starter by means of DMC catalysis and process for preparing them.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: November 13, 2012
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Frank Schubert, Wilfried Knott
  • Silicone-polyether copolymer systems and process for preparing them by means of an alkoxylation reaction
    Patent number: 8309664
    Abstract: Process for the preferential alkoxylation of silicone-polyether copolymers either alone or in compositions thereof containing, for example, excess polyether by use of double metal cyanide catalysts.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: November 13, 2012
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Wilfried Knott, Frank Schubert, Frauke Henning
  • NOVEL ORGANOMODIFIED SILOXANES HAVING PRIMARY AMINO FUNCTIONS, NOVEL ORGANOMODIFIED SILOXANES HAVING QUATERNARY AMMONIUM FUNCTIONS AND THE METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20120282210
    Abstract: The invention relates to a method for producing siloxanes selectively carrying primary amino groups by reacting them with ammonia, and to compounds produced in this way.
    Type: Application
    Filed: December 29, 2010
    Publication date: November 8, 2012
    Applicant: Evonik Goldschmidt GmbH
    Inventors: Frauke Henning, Wilfried Knott, Horst Dudzik
  • Polyethersiloxanes carrying alkoxysilyl groups and method for production thereof
    Patent number: 8283422
    Abstract: Alkoxysilyl-functional polyether-siloxanes and processes for preparing them by noble metal-catalysed SiC coupling of hydrogensiloxanes having SiH groups with unsaturated polyethers bearing alkoxysilyl groups or by alkoxylation of polyethersiloxanes or polysiloxanes by means of epoxy-functional alkoxysilanes in the presence of double metal cyanide catalysts.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: October 9, 2012
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Frank Schubert, Frauke Henning, Wilfried Knott
  • Process for modifying surfaces
    Patent number: 8268939
    Abstract: Use of one or more mixed curable hydroxyl-containing silyl polyethers as a constituent of compositions, as modifiers for surfaces, the silyl polyethers being prepared by DMC-catalysed alkoxylation of epoxy-functional alkoxysilanes.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: September 18, 2012
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Thomas Ebbrecht, Frank Schubert, Matthias Naumann, Wilfried Knott, Kathrin Lehmann, Joachim Venzmer, Berend-Jan De Gans, Stefan Silber, Frauke Henning
  • Particles and composite particles, their uses and a novel process for producing them from alkoxysilyl-group-carrying alkoxylation products
    Patent number: 8247525
    Abstract: The present invention related to particles and composite particles, their uses and a novel process for producing them from alkoxysilyl-group-carrying alkoxylation products.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: August 21, 2012
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Frank Schubert, Matthias Naumann, Wilfried Knott, Joachim Venzmer, Berend-Jan de Gans, Susann Wiechers
  • Polysiloxanes With Nitrogen-Containing Groups
    Publication number: 20120097883
    Abstract: Endblocked polysiloxanes with lateral amino functions and at least one further lateral and/or terminal functional group.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 26, 2012
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Frauke Henning, Michael Ferenz, Wilfried Knott, Stefan Silber, Hans Henning Wenk, Dirk Kuppert, Frank Koenig
  • Linear polydimethylsiloxane-polyether copolymers with amino and/or quaternary ammonium groups and use thereof
    Patent number: 8158572
    Abstract: Household care compositions having a linear polydimethylsiloxane-polyether copolymers with amino and/or quaternary ammonium groups, obtainable by the reaction of organopolysiloxanes functionalized with secondary aminoalkyl groups with the reaction products formed from compounds containing epoxy groups and amines, the use thereof and process for preparation thereof.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: April 17, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Frank Schubert, Wilfried Knott, Michael Ferenz, Klaus-Dieter Klein, Tobias Maurer, Ralph Scheuermann, Bernard William Kluesener, Rajan Keshav Panadiker
  • Emulsions Based On Hydroxyl Compounds Bearing Silyl Groups
    Publication number: 20120071564
    Abstract: The invention relates to emulsions containing hydroxyl compound bearing silyl groups, to the production and to the use thereof
    Type: Application
    Filed: April 26, 2010
    Publication date: March 22, 2012
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Berend-Jan de Gans, Frank Schubert, Matthias Naumann, Wilfried Knott, Stefan Silber
  • Curable Compositions Containing Silyl Groups, And Use Thereof
    Publication number: 20120067520
    Abstract: This invention relates to curable compositions containing hydroxyl compounds that carry silyl groups as well as to the use of said compositions.
    Type: Application
    Filed: April 26, 2010
    Publication date: March 22, 2012
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Frank Schubert, Wilfried Knott
  • Hydroxyl Compounds Carrying Reactive Silyl Groups And Used As Ceramic Binders
    Publication number: 20120068110
    Abstract: The application relates to a reactive ceramic binder suitable for producing ceramic products from ceramic powder, characterized in that the reactive ceramic binder represents hydroxyl compounds which carry reactive silyl groups and can be additionally (poly)siloxane-substituted.
    Type: Application
    Filed: April 26, 2010
    Publication date: March 22, 2012
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Frank Schubert, Thomas Ebbrecht, Matthias Naumann, Wilfried Knott
  • Process for preparing branched Si-H functional polysiloxanes and use thereof for preparing liquid SiC- or SiOC-linked, branched modified organomodified polysiloxanes
    Patent number: 8138294
    Abstract: The invention provides a process for preparing liquid, branched SiH-functional siloxanes by reacting a mixture of one or more low molecular weight SiH-functional siloxanes, one or more low molecular weight SiH-free siloxanes, one or more tetraalkoxysilanes, and optionally one or more trialkoxysilanes with addition of water and in the presence of a Brønsted-acidic ion exchanger, which is characterized in that the reaction is performed in one process step.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: March 20, 2012
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Frauke Henning, Wilfried Knott, Michael Ferenz
  • PROCESS FOR PREPARING BRANCHED Si-H FUNCTIONAL POLYSILOXANES AND USE THEREOF FOR PREPARING LIQUID SiC- OR SiOC-LINKED, BRANCHED MODIFIED ORGANOMODIFIED POLYSILOXANES
    Publication number: 20120046486
    Abstract: The invention provides a process for preparing liquid, branched SiH-functional siloxanes by reacting a mixture of one or more low molecular weight SiH-functional siloxanes, one or more low molecular weight SiH-free siloxanes, one or more tetraalkoxysilanes, and optionally one or more trialkoxysilanes with addition of water and in the presence of a Brønsted-acidic ion exchanger, which is characterized in that the reaction is performed in one process step.
    Type: Application
    Filed: November 3, 2011
    Publication date: February 23, 2012
    Applicant: Evonik Goldschmidt GmbH
    Inventors: FRAUKE HENNING, Wilfried Knott, Michael Ferenz
  • USE OF ORGANOMODIFIED SILOXANES BRANCHED IN THE SILICON PART FOR PRODUCING COSMETIC OR PHARMACEUTICAL COMPOSITIONS
    Publication number: 20120027704
    Abstract: The invention relates to organomodified additives, emulsifiers, dispersants and/or active nourishing ingredients present in the silicon part of branched siloxane block copolymers, to the use thereof, in particular for producing cosmetic, dermatological or pharmaceutical formulations as well as care and cleansing products, and to the preparations as such.
    Type: Application
    Filed: March 17, 2010
    Publication date: February 2, 2012
    Applicant: Evonik Goldschmidt GmbH
    Inventors: Frauke Henning, Juergen Meyer, Christian Hartung, Michael Ferenz, Wilfried Knott, Sascha Herrwerth
  • New Types of Polyester-Modified Organopolysiloxanes
    Publication number: 20120010302
    Abstract: The invention relates to new types of polyester-polysiloxane block copolymers, to processes for their preparation and to their use.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 12, 2012
    Applicant: Evonik Goldschmidt GmbH
    Inventors: Christian HARTUNG, Michael Ferenz, Wilfried Knott, Helmut Ritter, Michael Fiedel
  • Process for preparing organic silicon compounds
    Publication number: 20110301254
    Abstract: The invention provides a process for preparing organically modified siloxanes by catalysed reaction of siloxanes having at least one SiH group with a compound having a double bond.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 8, 2011
    Applicant: Evonik Goldschmidt GmbH
    Inventors: Wilfried Knott, Klaus-Dieter Klein
  • Novel particles and composite particles, their uses and a novel process for producing them from alkoxysilyl-group-carrying alkoxylation products
    Publication number: 20110281973
    Abstract: Novel particles and composite particles, their uses and a novel process for producing them from alkoxysilyl-group-carrying alkoxylation products.
    Type: Application
    Filed: February 2, 2011
    Publication date: November 17, 2011
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Frank Schubert, Matthias Naumann, Wilfried Knott, Joachim Venzmer, Berend-Jan de Gans, Susann Wiechers
  • Novel Polyethersiloxanes Carrying Alkoxysilyl Groups and Method for Production Thereof
    Publication number: 20110245412
    Abstract: Alkoxysilyl-functional polyether-siloxanes and processes for preparing them by noble metal-catalysed SiC coupling of hydrogensiloxanes having SiH groups with unsaturated polyethers bearing alkoxysilyl groups or by alkoxylation of polyethersiloxanes or polysiloxanes by means of epoxy-functional alkoxysilanes in the presence of double metal cyanide catalysts.
    Type: Application
    Filed: November 5, 2009
    Publication date: October 6, 2011
    Inventors: Frank Schubert, Frauke Henning, Wilfried Knott
  • Process for the Preparation of Amine-Amide-Functional Siloxanes
    Publication number: 20110230633
    Abstract: The invention describes amine-amide-functional siloxanes and a process for the preparation thereof by the chemical reaction of SiOH-functional siloxanes with amino-functional silanes in the presence of carboxylic acid anhydrides.
    Type: Application
    Filed: February 21, 2011
    Publication date: September 22, 2011
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Michael Ferenz, Christian Mund, Wilfried Knott, Stefan Silber
  • Nitrogen-Containing Organosilicon Graft Copolymers
    Publication number: 20110230619
    Abstract: Nitrogen-containing organosilicon graft copolymers of polyalkylene oxide containing siloxane derivatives and their use.
    Type: Application
    Filed: February 21, 2011
    Publication date: September 22, 2011
    Applicant: EVONIK GOLDSCHMIDT GMBH
    Inventors: Dirk Kuppert, Michael Ferenz, Peter Schwab, Wilfried Knott, Stefan Silber