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).

  • Patent number: 8993706
    Abstract: Curable material comprising silylated polymers containing urethane groups, and use thereof in sealants, adhesives, binders and/or surface modifiers.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: March 31, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Frank Schubert, Wilfried Knott, Michael Ferenz, Stefan Silber
  • Publication number: 20150080593
    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: November 20, 2014
    Publication date: March 19, 2015
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Frauke HENNING, Wilfried KNOTT, Horst DUDZIK
  • Patent number: 8974627
    Abstract: This invention relates to curable compositions containing hydroxyl compounds that carry silyl groups as well as to the use of said compositions.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: March 10, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Frank Schubert, Wilfried Knott
  • Patent number: 8969502
    Abstract: The invention relates to a process for the targeted reorganization of polydimethylsiloxanes over sulphonic acid-containing cation exchange resins which have water contents of 8 to 25% by weight, and polydimethylsiloxanes thus prepared and the use thereof.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: March 3, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Wilfried Knott, Martin Glos, Norbert Nilewski
  • Publication number: 20150057369
    Abstract: The invention relates to alkoxylation products, their preparation, compositions comprising the alkoxylation products of the invention, and the use thereof as or for producing adhesives and sealants.
    Type: Application
    Filed: July 16, 2014
    Publication date: February 26, 2015
    Inventors: Michael Ferenz, Matthias Lobert, Frank Schubert, Anke Lewin, Volker Zellmer, Wilfried Knott, Melanie Roessing, Stephan Roessing
  • Publication number: 20150057412
    Abstract: This invention relates to compounds having guanidine groups and containing semi-organic silicon groups, their use for the curing of compounds containing alkoxysilyl groups, compositions comprising the curing catalysts of the invention, and use of the compositions as adhesives and sealants and also as coating materials.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 26, 2015
    Applicant: Evonik Degussa GmbH
    Inventors: Wilfried Knott, Michael Ferenz, Michael Fiedel, Wolfgang Hojak, Bastian Matthias Brugger, Frank Schubert, Anke Lewin
  • Patent number: 8957009
    Abstract: 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: December 29, 2010
    Date of Patent: February 17, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Frank Schubert, Wilfried Knott, Michael Ferenz, Klaus-Dieter Klein, Tobias Maurer, Ralph Scheuermann, Bernard William Kluesener, Rajan Keshav Panandiker
  • Patent number: 8946369
    Abstract: Branched polysiloxanes of formula (I) Ma1MHa2MVia3Db1DHb2DVib3Tc1THc2TVic3Qd??(I) wherein M=[R2R12SiO1/2], MH=[R12HSiO1/2], MVi=[R3R12SiO1/2], D=[R12SiO2/2], DH=[R1HSiO2/2], DVi=[R1R3SiO2/2], T=[R4SiO3/2], TH=[HSiO3/2], TVi=[R3SiO3/2], Q=[SiO4/2], R1 is mutually independently identical or different, linear or branched, saturated or unsaturated hydrocarbon moieties, R2 is mutually independently the same as R1, an alkoxy moiety or a hydroxy group, R3 is mutually independently identical or different, linear or branched, olefinically unsaturated hydrocarbon moieties, R4 is mutually independently R1 or identical or different linear, branched and/or cyclic, saturated or unsaturated hydrocarbon moieties comprising heteroatoms, a1=from 0 to 50, a2=from 1 to 50, a3=from 1 to 50, b1=from 10 to 5000, b2=from 0 to 30, b3=from 0 to 30, c1=from 0 to 50, c2=from 0 to 50 c3=from 0 to 50, d=from 0 to 50, with the proviso that the sum c1+c2+c3+d is greater than or equal to 1, are provided.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: February 3, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Frauke Henning, Sadik Amajjahe, Ute Linke, Michael Ferenz, Wilfried Knott, Volker Arning, Bastian Matthias Brugger, Kathrin Lehmann
  • Publication number: 20150023900
    Abstract: A process for preparing amino acid-modified siloxanes that can be carried out under mild conditions is provided as well as organically modified silicones for care formulations for skin, hair and textiles that are toxicologically unobjectionable.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 22, 2015
    Applicant: Evonik Industries AG
    Inventors: Wilfried Knott, Frauke Henning, Sadik Amajjahe, Sarah Krauskopf, Michael Fiedel, Olga Jazkewitsch, Christian Hartung
  • Publication number: 20150004112
    Abstract: The invention relates to siloxane polymers comprising a central polysiloxane polymer block B with organofunctional radicals bonded terminally or laterally to the polymer block and based on IPDI and UV/Vis chromophores or derivatives, in particular UV chromophores, which are covalently bonded via a hydrophobic or hydrophilic linker group Q1?, Q2?, and compositions comprising these siloxanes. Also disclosed are processes for their preparation and their use.
    Type: Application
    Filed: June 24, 2014
    Publication date: January 1, 2015
    Inventors: Helmut Ritter, Wilfried Knott, Frauke Henning, Christian Hartung, Berit Knudsen
  • Publication number: 20150004113
    Abstract: The invention relates to siloxane polymer comprising a central polysiloxane polymer block B with organofunctional radicals, which are terminal or bonded laterally on the polymer block, comprising IPDI and amino acid derivatives which are covalently bonded via a hydrophobic or hydrophilic linker group Q1?, Q2?, and to compositions comprising these siloxanes. Furthermore, processes for their preparation and their use are disclosed.
    Type: Application
    Filed: June 24, 2014
    Publication date: January 1, 2015
    Inventors: Helmut Ritter, Berit Knudsen, Wilfried Knott, Frauke Henning, Christian Hartung, Thiemo Mennenga
  • Patent number: 8921437
    Abstract: Prepolymers having more than one alkoxysilyl function per chain end reactive towards epoxide groups as a constituent of curable compositions, and their use for producing adhesive-bonding and coating compositions, which may also be foamable, and also polymeric materials produced therefrom.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: December 30, 2014
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Wilfried Knott, Frank Schubert, Martin Glos, Carsten Schiller, Matthias Naumann
  • Publication number: 20140309446
    Abstract: The invention relates to novel amino-group-containing siloxanes, to their preparation processes and to their use in care formulations for skin, hair and textiles.
    Type: Application
    Filed: October 5, 2012
    Publication date: October 16, 2014
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Sadik Amajjahe, Frauke Henning, Wilfried Knott, Christian Hartung, Jutta Esselborn, Frank Koenig
  • Patent number: 8841400
    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. Specifically the invention relates to branched polysiloxanes having trifunctional T units as well as polyether groups, alkyl radicals of more than 7 carbon atoms or multi-hydroxy functional radicals.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: September 23, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Frauke Henning, Juergen Meyer, Christian Hartung, Michael Ferenz, Wilfried Knott, Sascha Herrwerth
  • Publication number: 20140256844
    Abstract: Novel silicone polyether copolymers of inverse structure of the formula 1, characterized in that no unsaturated functional groups caused by side reactions or conversion products thereof are present in the copolymer, and a process for preparation thereof, in which a polyether modified terminally and/or laterally with alkoxysilyl groups is reacted with silanes and/or siloxanes which bear one or more hydrolysis-labile groups, in a hydrolysis and condensation reaction.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Frauke Henning, Frank Schubert, Wilfried Knott, Horst Dudzik
  • Patent number: 8802744
    Abstract: The present invention provides polysiloxane-polyether copolymers comprising at least one polyether moiety, characterized in that there is at least one polyether moiety capped with at least one —O—C(O)—O—R? unit where R? is identical or different alkyl moieties, a process for preparation thereof and use thereof, especially for polyurethane foam production.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: August 12, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Wilfried Knott, Horst Dudzik, Frauke Henning, Frank Schubert, Michael Ferenz, Roland Hubel
  • Patent number: 8779079
    Abstract: Novel silicone polyether copolymers of inverse structure of the formula 1, characterized in that no unsaturated functional groups caused by side reactions or conversion products thereof are present in the copolymer, and a process for preparation thereof, in which a polyether modified terminally and/or laterally with alkoxysilyl groups is reacted with silanes and/or siloxanes which bear one or more hydrolysis-labile groups, in a hydrolysis and condensation reaction.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: July 15, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Frauke Henning, Frank Schubert, Wilfried Knott, Horst Dudzik
  • Patent number: 8772423
    Abstract: The invention relates to emulsions containing hydroxyl compound bearing silyl groups, to the production and to the use thereof.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: July 8, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Berend-Jan de Gans, Frank Schubert, Matthias Naumann, Wilfried Knott, Stefan Silber
  • Patent number: 8729207
    Abstract: The invention relates to new types of polyester-polysiloxane block copolymers, to processes for their preparation and to their use.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: May 20, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Hartung, Michael Ferenz, Wilfried Knott, Helmut Ritter, Michael Fiedel
  • Patent number: 8722834
    Abstract: The invention relates to a process for producing equilibration products of organosiloxanes by rearrangement of the siloxane bond to a cation exchange resin, the organopolysiloxanes thus obtainable, and the use thereof.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: May 13, 2014
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Wilfried Knott, Frauke Henning, Klaus-Dieter Klein, Horst Dudzik