Patents by Inventor Karsten Korth

Karsten Korth 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).

  • Silicon-containing azodicarboxamides, their preparation and use
    Publication number: 20170174712
    Abstract: A silicon-containing azodicarboxamide is obtainable by reacting an azodicarboxy compound with an aminosilane. The silicon-containing azodicarboxamides are suitable for use in cable sheathing, hoses, drive belts, conveyor belts, roll coverings, footwear soles, ring seals and damping elements.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 22, 2017
    Applicant: EVOINIK DEGUSSA GmbH
    Inventors: Karsten Korth, Julia Keck, Sascha Erhardt, Jaroslaw Monkiewicz, Christian Springer, Elisabeth Bauer
  • Mercaptosilanes
    Patent number: 9617287
    Abstract: Mercaptosilanes are disclosed of the formula I wherein R1 is an alkyl polyether group —O—(R5—O)m—R6. They are prepared by a procedure in which a silane of the formula II is subjected to a catalyzed reaction with an alkyl polyether R1—H, R7—OH being split off, the molar ratio of the alkyl polyethers R1—H to the silane of the formula II is at least 0.5 and R7—OH is separated off from the reaction mixture continuously or discontinuously. They can be used in shaped articles.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: April 11, 2017
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Oliver Klockmann, Philipp Albert, Andre Hasse, Karsten Korth, Relmund Pieter
  • Mixtures of silicon-containing coupling reagents
    Patent number: 9029450
    Abstract: Mixtures of silicon-containing coupling reagents comprising (mercaptoorganyl)alkylpolyethersilanes containing silanol groups and (mercaptoorganyl)alkylpolyethersilanes free of silanol groups in a weight ratio of from 5:95 to 95:5. The mixtures can be prepared by transesterification and hydrolysis. The mixtures can be used in rubber mixtures.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: May 12, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Philipp Albert, Manuel Friedel, Karsten Korth, Andre Hasse, Oliver Klockmann
  • Process for preparing silicon-containing azodicarbamides
    Patent number: 8664370
    Abstract: The invention relates to a process for preparing silicon-containing azodicarbamides of the general formula (I) (R1)3-a(R2)aSi—RI—NH—C(O)—N?N—C(O)—NH—RI—Si(R1)3-a(R2)a (I), by reaction of azobiscarboxy compounds of the general formula II R3—X1—C(O)—N?N—C(O)—X1—R4 (II) with aminosilanes of the general formula III (R1)3-a(R2)aSi—RI—NH2 (III).
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: March 4, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Julia Keck, Susann Witzsche, Oliver Klockmann, Jaroslaw Monkiewicz, Christian Springer
  • Process for Preparing Silicon-Containing Azodicarbamides
    Publication number: 20130012691
    Abstract: The invention relates to a process for preparing silicon-containing azodicarbamides of the general formula (I) (R1)3-a(R2)aSi—RI—NH—C(O)—N?N—C(O)—NH—RI—Si(R1)3-a(R2)a (I), by reaction of azobiscarboxy compounds of the general formula II R3—X1—C(O)—N?N—C(O)—X1—R4 (II) with aminosilanes of the general formula III (R1)3-a(R2)aSi—RI—NH2 (III).
    Type: Application
    Filed: March 15, 2011
    Publication date: January 10, 2013
    Inventors: Karsten Korth, Julia Keck, Susann Witzsche, Oliver Klockmann, Jaroslaw Monkiewicz, Christian Springer
  • Rubber mixtures
    Patent number: 8252863
    Abstract: Rubber mixtures, including at least one rubber, a filler, an organosilicon compound of the formula I one rubber accelerator and one co-accelerator. The rubber mixtures are prepared by mixing at least one rubber, a filler, an organosilicon compound of the formula I, one rubber accelerator and one co-accelerator. The rubber mixtures can be used for production of moldings. Also disclosed is a process for preparation of the organosilicon compound of the formula I via transesterification.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: August 28, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Andre Hasse, Karsten Korth, Ingo Kiefer, Susann Witzsche, Philipp Albert, Oliver Klockmann
  • Rubber mixtures
    Patent number: 8242193
    Abstract: Rubber mixtures containing at least one rubber and an organosilicon compound of the general formula (I) (Q-)kG-Si(—O—CX1X2—CX1X3—)3N. The rubber mixture is prepared by mixing at least one rubber and an organosilicon compound of the formula (I). The rubber mixtures can be used for the production of moldings.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: August 14, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Andre Hasse, Susann Witzsche, Oliver Klockmann, Philipp Albert
  • Method for producing organosilanes
    Patent number: 8138365
    Abstract: The invention relates to a method for producing organosilanes of general formula I, [R(R)(R?O)Si—R?—]2Sm??I by reaction of (halo-organo)alkoxysilanes of formula II, [R(R)(R?O)Si—R?-Hal??II with a sulfuring reagent, selected from alkaline hydrogensulfide, alkaline sulfide Me2S, alkaline polysulfide Me2Sg and any combination thereof and optionally additionally with sulfur and/or with H2S in a solvent, the alkaline hydroxy content of all materials used being <0.44 wt. %.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: March 20, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Philipp Albert, Susann Witzsche, Ingo Kiefer, Jörg Kiefer, Stefan Lotter, Jaroslaw Monkiewicz, Jörg Schmidt
  • Process for preparing organosilanes
    Patent number: 8129556
    Abstract: The invention relates to a process for preparing organosilanes of the general formula I by reacting (haloorganyl)alkoxysilane of the formula II with hydrous alkali metal hydrogensulphide, sulphur and alkali metal carbonate in alcohol, wherein the molar (haloorganyl)alkoxysilane of the formula II to alkali metal hydrogensulphide ratio is between 1:0.4 and 1:0.75, and the molar alkali metal hydrogensulphide to alkali metal carbonate ratio is between 1:0.5 and 1:1.5.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: March 6, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Ingo Kiefer, Alfred Alig, Ulrich Deschler, Helmut Droege, Sefan Koenigstein, Stephanie Schwan
  • Mercaptosilanes
    Publication number: 20110287205
    Abstract: Mercaptosilanes are disclosed of the formula I wherein R1 is an alkyl polyether group —O—(R5—O)m—R6. They are prepared by a procedure in which a silane of the formula II is subjected to a catatyzed reaction with an alkyl polyether R1—H, R7—OH being split off, the molar ratio of the alkyl polyethers R1—H to the silane of the formula II is at least 0.5 and R7—OH is separated off from the reaction mixture continuously or discontinuously. They can be used in shaped articles.
    Type: Application
    Filed: August 2, 2011
    Publication date: November 24, 2011
    Inventors: Oliver Klockmann, Philipp Albert, Andre Hasse, Karsten Korth, Relmund Pieter
  • Mercaptosilanes and derivatives thereof
    Patent number: 8013178
    Abstract: Mercaptosilanes are disclosed of the formula I wherein R1 is an alkyl polyether group —O—(R5—O)m—R6. They are prepared by a procedure in which a silane of the formula II is subjected to a catalyzed reaction with an alkyl polyether R1—H, R7—OH being split off, the molar ratio of the alkyl polyethers R1—H to the silane of the formula II is at least 0.5 and R7—OH is separated off from the reaction mixture continuously or discontinuously. They can be used in shaped articles.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: September 6, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Oliver Klockmann, Philipp Albert, Andre Hasse, Karsten Korth, Reimund Pieter
  • MIXTURES OF SILICON-CONTAINING COUPLING REAGENTS
    Publication number: 20110034584
    Abstract: Mixtures of silicon-containing coupling reagents comprising (mercaptoorganyl)alkylpolyethersilanes containing silanol groups and (mercaptoorganyl)alkylpolyethersilanes free of silanol groups in a weight ratio of from 5:95 to 95:5. The mixtures can be prepared by transesterification and hydrolysis. The mixtures can be used in rubber mixtures.
    Type: Application
    Filed: June 11, 2007
    Publication date: February 10, 2011
    Inventors: Philipp Albert, Manuel Friedel, Karsten Korth, Andre Hasse, Oliver Klockmann
  • Method for the production of (mercaptoorganyl)alkyl polyether silanes
    Patent number: 7799938
    Abstract: The invention relates to a method for producing (mercaptoorganyl)alkyl polyether silanes by reacting dry mercaptization reagents with a (haloorganyl)alkyl polyether silane.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: September 21, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Dirk Laur, Philipp Albert, Ingo Kiefer
  • Method for producing organosilanes
    Publication number: 20100217026
    Abstract: The invention relates to a method for producing organosilanes of general formula I, [R(R)(R?O)Si—R?—]2Sm??I by reaction of (halo-organo)alkoxysilanes of formula II, [R(R)(R?O)Si—R?-Hal??II with a sulfuring reagent, selected from alkaline hydrogensulfide, alkaline sulfide Me2S, alkaline polysulfide Me2Sg and any combination thereof and optionally additionally with sulfur and/or with H2S in a solvent, the alkaline hydroxy content of all materials used being <0.44 wt. %.
    Type: Application
    Filed: June 11, 2007
    Publication date: August 26, 2010
    Inventor: Karsten Korth
  • Organosilicon compounds their preparation and their use
    Patent number: 7777063
    Abstract: The invention relates to organosilicon compounds, and to the ways in which they can be made and used.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: August 17, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Andre Hasse, Susann Witzsche, Oliver Klockmann, Philipp Albert
  • Rubber mixtures
    Patent number: 7705076
    Abstract: The invention relates to rubber mixtures, comprising: (A) at least one rubber, (B) at least one oxidic filler and (C) at least one (haloorganyl)alkylpolyethersilane of the general formula (X)(X?)(X?)Si—RI-Hal. The rubber mixtures can be used for production of mouldings.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: April 27, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Andre Hasse, Dirk Laur, Ingo Kiefer, Oliver Klockmann, Philipp Albert, Manuel Friedel
  • Rubber mixtures
    Patent number: 7662874
    Abstract: Rubber mixtures are disclosed comprising (A) at least one styrene-butadiene rubber, (B) at least one filler and (C) at least one polysulphidic organo(alkyl polyether silane) of the general formula I [(X)(X?)(X?)Si—RI]2—Sm??I. The mixtures are prepared by mixing at least one styrene-butadiene rubber, and at least one filler and one polysulphidic organo(alkyl polyether silane) of the formula (I). The rubber mixtures can be used for the production of mouldings.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: February 16, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Karsten Korth, Andre Hasse, Philipp Albert, Oliver Klockmann
  • PROCESS FOR PREPARING ORGANOSILANES
    Publication number: 20100029971
    Abstract: The invention relates to a process for preparing organosilanes of the general formula I by reacting (haloorganyl)alkoxysilane of the formula II with hydrous alkali metal hydrogensulphide, sulphur and alkali metal carbonate in alcohol, wherein the molar (haloorganyl)alkoxysilane of the formula II to alkali metal hydrogensulphide ratio is between 1:0.4 and 1:0.75, and the molar alkali metal hydrogensulphide to alkali metal carbonate ratio is between 1:0.5 and 1:1.5.
    Type: Application
    Filed: July 24, 2009
    Publication date: February 4, 2010
    Inventors: Karsten Korth, Ingo Kiefer, Alfred Alig, Ulrich Deschler, Helmut Droege, Sefan Koenigstein, Stephanie Schwan
  • Rubber Mixtures
    Publication number: 20090312476
    Abstract: The invention relates to rubber mixtures, comprising: (A) at least one rubber, (B) at least one oxidic filler and (C) at least one (haloorganyl)alkylpolyethersilane of the general formula (X)(X?)(X?)Si—R1—Hal. The rubber mixtures can be used for production of mouldings.
    Type: Application
    Filed: May 10, 2007
    Publication date: December 17, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: Karsten Korth, Andre Hasse, Dirk Laur, Ingo Kiefer, Oliver Klockmann, Philipp Albert, Manuel Friedel
  • Rubber Mixtures
    Publication number: 20090221751
    Abstract: Rubber mixtures, including at least one rubber, a filler, an organosilicon compound of the formula I one rubber accelerator and one co-accelerator. The rubber mixtures are prepared by mixing at least one rubber, a filler, an organosilicon compound of the formula I, one rubber accelerator and one co-accelerator. The rubber mixtures can be used for production of mouldings. Also disclosed is a process for preparation of the organosilicon compound of the formula I via transesterification.
    Type: Application
    Filed: January 9, 2007
    Publication date: September 3, 2009
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Andre Hasse, Karsten Korth, Ingo Kiefer, Susann Witzsche, Philipp Albert, Oliver Klockmann