Patents by Inventor Stephanie Frahn

Stephanie Frahn 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: 8328930
    Abstract: Pigment preparation containing at least one pigment and at least one compound of the general formula CH3—(CH2)n—CH2—O—[(CH2)p—O]m—H. The pigment preparation can be produced by dispersing and drying. It can be used for coloration and/or antistaticization in waterborne color and varnish systems, emulsion paints, printing inks, liquid-ink systems and coating systems.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: December 11, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Gerd Tauber, Stephan Lüdtke, Ralph McIntosh, Werner Kalbitz, Jutta Zimmermann, Alfons Karl, Stephanie Frahn
  • Publication number: 20100180794
    Abstract: Pigment preparation containing at least one pigment and at least one compound of the general formula CH3—(CH2)n—CH2—O—[(CH2)p—O]m—H. The pigment preparation can be produced by dispersing and drying. It can be used for coloration and/or antistaticization in waterborne colour and varnish systems, emulsion paints, printing inks, liquid-ink systems and coating systems.
    Type: Application
    Filed: May 20, 2008
    Publication date: July 22, 2010
    Inventors: Gerd Tauber, Stephan Lüdtke, Ralph McIntosh, Werner Kalbitz, Jutta Zimmermann, Alfons Karl, Stephanie Frahn
  • Patent number: 7563317
    Abstract: Silanised, structurally modified silicas, characterised by groups fixed on the surface, the groups being alkylsilyl (SiCnH2n+1, with n=2-18). They are produced in that pyrogenically produced silicas are treated with the silanising agent and structurally modified. They are used to improve scratch resistance in lacquers.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: July 21, 2009
    Assignee: Degussa AG
    Inventors: Jürgen Meyer, Stephanie Frahn, Manfred Ettlinger
  • Patent number: 7452600
    Abstract: Silanized, structurally modified, pyrogenically produced silicas, characterised by groups fixed to the surface, wherein the groups are dimethylsilyl and/or monomethylsilyl, are produced in that pyrogenically produced silica is treated by a known method with dimethyldichlorosilane and/or monomethyltrichlorosilane, the groups dimethylsilyl and/or monomethylsilyl being fixed on the surface of the pyrogenic silica, and is then structurally modified and optionally post-ground. They are used to improve scratch resistance in lacquers.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: November 18, 2008
    Assignee: Degussa AG
    Inventors: Jürgen Meyer, Stephanie Frahn, Manfred Ettlinger
  • Patent number: 7144930
    Abstract: Functionalized, structurally modified silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating, destructuring and grinding the mixture. The silicas are employed in radiation-curing coatings.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: December 5, 2006
    Assignee: Degussa AG
    Inventors: Jürgen Meyer, Manfred Ettlinger, Stephanie Frahn
  • Publication number: 20060009545
    Abstract: Lacquer formulations containing: from 5 to 99.5 wt. % of solids of a polymer component or of a mixture of two or more physically or chemically crosslinking polymer components, (binder components and hardener components), from 0 to 80 wt. % of a low molecular weight component acting as solvent or of a mixture of such low molecular weight components, from 0.5 to 50 wt. % of a silanised, structurally modified pyrogenic silica to the surface of which there are attached alkylsilyl groups (SiCnH2n+1, where n=from 2 to 18) and/or dimethylsilyl groups and/or monomethylsilyl groups, from 0 to 10 wt. % of commercially available additives.
    Type: Application
    Filed: July 29, 2003
    Publication date: January 12, 2006
    Applicant: Degussa AG
    Inventors: Stephanie Frahn, Manfred Ettlinger, Jurgen Meyer, Thorsten Ladwig
  • Publication number: 20050244642
    Abstract: Silanized, structurally modified, pyrogenically produced silicas, characterised by groups fixed to the surface, wherein the groups are dimethylsilyl and/or monomethylsilyl, are produced in that pyrogenically produced silica is treated by a known method with dimethyldichorosilane and/or monomethyltrichlorosilane, the groups dimethylsilyl and/or monomethylsilyl being fixed on the surface of the pyrogenic silica, and is then structurally modified and optionally post-ground. They are used to improve scratch resistance in lacquers.
    Type: Application
    Filed: July 29, 2003
    Publication date: November 3, 2005
    Inventors: Jurgen Meyer, Stephanie Frahn, Manfred Ettlinger
  • Publication number: 20050241531
    Abstract: Silanised, structurally modified silicas, characterised by groups fixed on the surface, the groups being alkylsilyl (SiCnH2n+1, with n=2-18). They are produced in that pyrogenically produced silicas are treated with the silanising agent and structurally modified. They are used to improve scratch resistance in lacquers.
    Type: Application
    Filed: July 29, 2003
    Publication date: November 3, 2005
    Inventors: Jurgen Meyer, Stephanie Frahn, Manfred Ettlinger
  • Patent number: 6809149
    Abstract: Functionalized silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating the mixture. The silicas are employed, for example, in solvent-containing coatings.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: October 26, 2004
    Assignee: Degussa AG
    Inventors: Jürgen Meyer, Manfred Ettlinger, Stephanie Frahn, Dieter Kerner
  • Patent number: 6593393
    Abstract: Radiation-curing coating systems which contain a silanized silica, where the silane is hexamethyldisilazane, 3-methacryloxypropyltrialkoxysilane and/or glycidyloxypropyltrialkoxysilane as the silanizing agent. The radiation-curing coating systems can be used for coating derived timber boards, solid wood, wood veneers, parquet, decorative papers, decorative films, thermoplastics and thermosetting plastics, mineral and polymeric glasses, metals (for example aluminium, high-grade steel, phosphated, chromated and galvanized steel sheets, copper), lacquered surfaces, printing inks and leather.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: July 15, 2003
    Assignee: Degussa AG
    Inventors: Stephanie Frahn, Manfred Ettlinger, Jürgen Meyer
  • Publication number: 20020077407
    Abstract: Functionalized silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating the mixture. The silicas are employed, for example, in solvent-containing coatings.
    Type: Application
    Filed: October 19, 2001
    Publication date: June 20, 2002
    Inventors: Jurgen Meyer, Manfred Ettlinger, Stephanie Frahn, Kerner Dieter
  • Publication number: 20020077388
    Abstract: Functionalized, structurally modified silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating, destructuring and grinding the mixture. The silicas are employed in radiation-curing coatings.
    Type: Application
    Filed: October 19, 2001
    Publication date: June 20, 2002
    Inventors: Jurgen Meyer, Manfred Ettlinger, Stephanie Frahn
  • Publication number: 20020077381
    Abstract: Radiation-curing coating systems which contain a silanized silica, where the silane is hexamethyldisilazane, 3-methacryloxypropyltrialkoxysilane and/or glycidyloxypropyltrialkoxysilane as the silanizing agent. The radiation-curing coating systems can be used for coating derived timber boards, solid wood, wood veneers, parquet, decorative papers, decorative films, thermoplastics and thermosetting plastics, mineral and polymeric glasses, metals (for example aluminium, high-grade steel, phosphated, chromated and galvanized steel sheets, copper), lacquered surfaces, printing inks and leather.
    Type: Application
    Filed: October 19, 2001
    Publication date: June 20, 2002
    Inventors: Stephanie Frahn, Manfred Ettlinger, Jurgen Meyer