Patents by Inventor Christian Wassmer

Christian Wassmer 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).

  • Publication number: 20140374656
    Abstract: The invention relates to a method for producing a solution comprising organofunctional siliconates, silicates and, optionally, the cocondensation products thereof, and to the solutions and an installation for the production thereof.
    Type: Application
    Filed: February 27, 2012
    Publication date: December 25, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Manuel Friedel, Spomenko Ljesic, Christian Wassmer, Susanne Zoelitz
  • Publication number: 20140208981
    Abstract: The invention relates to a composition and to a method for the production thereof, comprising quaternary amino-functional organosilicon compounds, in particular in the form of oligomers and polymers, which can be present ranging from partially hydrolyzed form to completely hydrolyzed form, and which are in particular soluble in water, have a low VOC content, and to the use thereof.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Burkhard STANDKE, Christian Wassmer, Tim Voegtlin, Irene Lippert, Stefan Scharfe, Heinz Lach, Christoph Batz-Sohn, Steffen Hasenzahl
  • Publication number: 20140182487
    Abstract: The invention relates to a solution and to methods for producing the solution comprising propylfunctional alkaline siliconates, silicates and, optionally, the cocondensation products thereof.
    Type: Application
    Filed: February 27, 2012
    Publication date: July 3, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Manuel Friedel, Spomenko Ljesic, Christian Waßmer, Susanne Zölitz
  • Patent number: 8747541
    Abstract: Dispersion obtainable by reacting a) in 50 to 75 parts by weight of water b) 25 to 50 parts by weight of silica particles having a BET surface area of 30 to 500 m2/g and c) 100 to 300 ?g/m2 BET surface area of the silica particles from b) parts by weight of one or more aminofunctional, organosilicon compounds, the aminofunctional, organosilicon compound being a quaternary, aminofunctional, organosilicon compound which is obtainable by reacting at least one haloalkylfunctional silane as component A with a tertiary amine as component B in the presence of a defined amount of water and at least partly removing the resulting hydrolysis alcohol from the system.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: June 10, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Stefan Scharfe, Christoph Batz-Sohn, Heinz Lach, Andrea Heuschen, Burkhard Standke, Christian Wassmer
  • Patent number: 8728225
    Abstract: The invention relates to a composition and to a method for the production thereof, comprising quaternary amino-functional organosilicon compounds, in particular in the form of oligomers and polymers, which can be present ranging from partially hydrolyzed form to completely hydrolyzed form, and which are in particular soluble in water, have a low VOC content, and to the use thereof.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: May 20, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Burkhard Standke, Christian Wassmer, Tim Voegtlin, Irene Lippert, Stefan Scharfe, Heinz Lach, Christoph Batz-Sohn, Steffen Hasenzahl
  • Patent number: 8481654
    Abstract: The present invention provides a composition based on the reaction at least of the following components: (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having an SiO2 content of >20% by weight, (iii) an organic acid hydrolysis catalyst, and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as crosslinker, a process for its preparation, and the use thereof, particularly as a composition for scratch resistant coatings, and also provides articles thus coated.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: July 9, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Roland Edelmann, Bjoern Borup, Jaroslaw Monkiewicz, Christian Wassmer, Kerstin Bibbo, Burkhard Standke
  • Publication number: 20130167754
    Abstract: The invention relates to novel quaternary amino alcohol functional organosilicon compounds, aqueous compositions containing the latter, and a method for their production, in particular in the form of oligomers and polymers which can be present in the partially or fully hydrolyzed form and are in particular water-soluble. The compositions comprise only an extremely small portion of VOCs. The invention further relates to their use, preferably in the production of inkjet photographic papers.
    Type: Application
    Filed: June 9, 2011
    Publication date: July 4, 2013
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Christian Wassmer, Burkhard Standke, Stefan Scharfe, Christoph Batz-Sohn, Andrea Heuschen
  • Patent number: 8394972
    Abstract: The present invention relates to a process for performing a controlled hydrolysis and condensation of an epoxy-functional silane of the general formula I R1-SiR?m(OR)3-m (I) in which R1 is a (III) or (IV) group and R, R? and R? groups are the same or different and are each hydrogen (H) or a linear, branched or cyclic, optionally substituted alkyl group having from 1 to 6 carbon atoms, A and A? groups are the same or different and are each a bivalent alkyl group having from 1 to 10 carbon atoms, R2 groups are the same or different and R2 is a linear, branched or cyclic, optionally substituted alkyl group having from 1 to 20 carbon atoms, and m is 0 or 1, and optionally of at least one further organofunctional silane of the general formula II R2-SiR?n(OR)3-n (II) in which R2 is an organofunctional group as already defined above, R? is methyl, R groups are each independently hydrogen or a linear, branched or cyclic alkyl group having from 1 to 6 carbon atoms and n is 0 or 1, where from 0.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 12, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Christian Wassmer, Burkhard Standke, Irene Lippert, Peter Jenkner
  • Publication number: 20130040078
    Abstract: Process for preparing a dispersion comprising silicon dioxide particles and cationizing agents, by dispersing 50 to 75 parts by weight of water, 25 to 50 parts by weight of silicon dioxide particles having a BET surface area of 30 to 500 m2/g and 100 to 300 ?g of cationizing agent per square metre of the BET surface area of the silicon dioxide particles, wherein the cationizing agent is obtainable by reacting at least one haloalkyl-functional alkoxysilane, its hydrolysis products or condensation products and/or a mixture thereof with at least one aminoalcohol and a defined amount of water and optionally removing the resulting hydrolysis alcohol at least partly from the reaction mixture.
    Type: Application
    Filed: May 23, 2011
    Publication date: February 14, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Stefan Scharfe, Andrea Heuschen, Christoph Batz-Sohn, Burkhard Standke, Christian Wassmer, Heinz Lach
  • Publication number: 20120321803
    Abstract: The invention relates to a method for producing aqueous, essentially solvent-free compositions based on pyrogenous metal oxides functionalised by oligomer siloxanols, to the corresponding compositions, and to the use thereof for corrosion protection and adherence.
    Type: Application
    Filed: December 27, 2010
    Publication date: December 20, 2012
    Applicant: Evonik Degussa GmbH
    Inventors: Bjoern Borup, Mike Achtzehn, Burkhard Standke, Christian Wassmer
  • Patent number: 8298679
    Abstract: The invention relates to an aqueous composition of bis-amino-functional silicon compounds which is essentially free of organic solvents and releases essentially no further alcohol in the course of crosslinking, and to processes for preparing it and to the use thereof, for example for hydrophobization of metal or glass surfaces.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: October 30, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Philipp Albert, Eckhard Just, Christian Wassmer, Burkhard Standke
  • Publication number: 20120204762
    Abstract: The present invention relates to a furnace (12) for melting heated glass using burners (13), wherein the combustion energy is at least partially produced by oxy-fuel combustion, and wherein at least a portion of the oxygen used in the burners (13) is produced by separation, on a ceramic separation membrane (18), from a gaseous mixture including oxygen, the oxygen from the separation being directly channeled into at least one burner (13).
    Type: Application
    Filed: July 12, 2010
    Publication date: August 16, 2012
    Applicant: Evonik Degussa GmbH
    Inventors: Philipp Albert, Eckhard Just, Dirk Laur, Christian Wassmer
  • Patent number: 8178630
    Abstract: The present invention relates to a preparation comprising at least one specific oligomeric siloxane component and at least one polymer component, to processes for producing it and to its use in formulations, more particularly metal coating formulations.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: May 15, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Rene Koschabek, Martin Bartmann, Thorsten Brand, Burkhard Standke, Roland Edelmann, Christian Wassmer
  • Patent number: 8147918
    Abstract: The present invention provides a sol-gel composition which is dilutable with water in any proportion and is based on the reaction of at least the following components: (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of >1% by weight, (iii) an organic acid as hydrolysis catalyst, and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as crosslinker, starting from a mass ratio of the solids mass of component (ii) to component (i) 0.75, a process for preparing it and its use, in particular as a sol-gel composition for corrosion control coatings, a corresponding corrosion control coat or primer coat, and articles equipped with such a coating.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: April 3, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Burkhard Standke, Christian Wassmer, Peter Jenkner
  • Patent number: 8119730
    Abstract: A formulation containing: (i) at least one organoalkoxysilane and/or at least one organoalkoxysiloxane; (ii) at least one inorganic oxidic powder; and (iii), optionally, an organic or inorganic acid is provided. The formulation contains from 5 to 50% of the inorganic oxide powder and has a viscosity of less than 1500 mPa·s. A weight ratio of the organoalkoxysilane and/or at least one organoalkoxysiloxane to the inorganic oxidic powder is from 19:1 to 1:1.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: February 21, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Roland Edelmann, Björn Borup, Christian Wassmer, Jaroslaw Monkiewicz
  • Publication number: 20120037040
    Abstract: The invention relates to a composition and to a method for the production thereof, comprising quaternary amino-functional organosilicon compounds, in particular in the form of oligomers and polymers, which can be present ranging from partially hydrolyzed form to completely hydrolyzed form, and which are in particular soluble in water, have a low VOC content, and to the use thereof.
    Type: Application
    Filed: March 19, 2010
    Publication date: February 16, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Burkhard Standke, Christian Wassmer, Tim Voegtlin, Irene Lippert, Stefan Scharfe, Heinz Lach, Christoph Batz-Sohn, Steffen Hasenzahl
  • Publication number: 20120006228
    Abstract: Dispersion obtainable by reacting a) in 50 to 75 parts by weight of water b) 25 to 50 parts by weight of silica particles having a BET surface area of 30 to 500 m2/g and c) 100 to 300 ?g/m2 BET surface area of the silica particles from b) parts by weight of one or more aminofunctional, organosilicon compounds, the aminofunctional, organosilicon compound being a quaternary, aminofunctional, organosilicon compound which is obtainable by reacting at least one haloalkylfunctional silane as component A with a tertiary amine as component B in the presence of a defined amount of water and at least partly removing the resulting hydrolysis alcohol from the system.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 12, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Stefan Scharfe, Christoph Batz-Sohn, Heinz Lach, Andrea Heuschen, Burkhard Standke, Christian Wassmer
  • Publication number: 20110268899
    Abstract: The invention relates to an aqueous composition of bis-amino-functional silicon compounds which is essentially free of organic solvents and releases essentially no further alcohol in the course of crosslinking, and to processes for preparing it and to the use thereof, for example for hydrophobization of metal or glass surfaces.
    Type: Application
    Filed: July 2, 2008
    Publication date: November 3, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Philipp Albert, Eckhard Just, Christian Wassmer, Burkhard Standke
  • Publication number: 20110178238
    Abstract: The present invention relates to a preparation comprising at least one specific oligomeric siloxane component and at least one polymer component, to processes for producing it and to its use in formulations, more particularly metal coating formulations.
    Type: Application
    Filed: July 8, 2008
    Publication date: July 21, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Rene Koschabek, Martin Bartmann, Thorsten Brand, Burkhard Standke, Roland Edelmann, Christian Wassmer
  • Publication number: 20110143147
    Abstract: The invention relates to an agent for providing substrates based on cellulose and/or starch with water-repellent and simultaneously antifungal, antibacterial, insect-repellent and antialgal properties, which contains water and, as active substance, at least one linear, cyclic, branched or crosslinked co-oligomer or mixtures of co-oligomers from the series consisting of the alkyl-/aminoalkyl-/alkoxy- or hydroxy-siloxanes, the use of such agents and a special treatment process using such agents.
    Type: Application
    Filed: June 3, 2005
    Publication date: June 16, 2011
    Applicant: Degussa Gmbh
    Inventors: Roland Edelmann, Christian Wassmer, Peter Jenkner, Jaroslaw Monkiewicz, Holger Militz, Carsten Mai, Steffen Donath