Patents by Inventor Uwe Schmeier

Uwe Schmeier 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).

  • MATTING AGENTS BASED ON PRECIPITATED SILICAS
    Publication number: 20240368380
    Abstract: The invention relates to precipitated silica, characterized by BET: 150 m2/g-400 m2/g, preferably 200 m2/g-300 m2/g, determined to ISO 9277 DOA: 220 ml/100 g-400 ml/100 g, preferably 250 ml/100 g-350 ml/100 g, determined to ISO 19246 d50: 3.0 ?m-5.0 ?m, determined by laser diffraction on a Coulter LS to ISO 13320, particle size ratio d5:d50:d95: >0.3:1:<2, particle size distribution d95?d5/d50: between 1.3 and 1.7.
    Type: Application
    Filed: May 3, 2024
    Publication date: November 7, 2024
    Applicant: Evonik Operations GmbH
    Inventors: Thomas Klotzbach, Sascha Herrwerth, Andreas Feller, Siegfried Heeg, Uwe Schmeier, Jan Hendrik Heinzinger, Doris Mißelich
  • Lacquer formulation for improving surface properties
    Patent number: 7842129
    Abstract: A coating formulation containing at least one surface-modified silicon dioxide having a 60° reflectometer value of <3 and a black number My of at least 140 has excellent performance properties, for example, a very good transparency.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: November 30, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Hans-Dieter Christian, Reinhard Behl, Hans-Werner Köhler, Uwe Schmeier, Jürgen Meyer
  • Surface-modified precipitated silicas
    Patent number: 7816442
    Abstract: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: October 19, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Hans-Dieter Christian, Juergen Schubert, Uwe Schmeier
  • Surface-modified precipitated silicas
    Patent number: 7553889
    Abstract: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: June 30, 2009
    Assignee: Degussa AG
    Inventors: Hans-Dieter Christian, Jürgen Schubert, Uwe Schmeier
  • SURFACE-MODIFIED PRECIPITATED SILICAS
    Publication number: 20080139756
    Abstract: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 12, 2008
    Applicant: DEGUSSA AG
    Inventors: Hans-Dieter Christian, Juergen Schubert, Uwe Schmeier
  • Coating formulation for improving surface properties
    Publication number: 20050282022
    Abstract: A coating formulation containing at least one surface-modified silicon dioxide having a 60° reflectometer value of<3 and a black number My of at least 140 has excellent performance properties, for example, a very good transparency.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 22, 2005
    Applicant: Degussa AG
    Inventors: Hans-Dieter Christian, Reinhard Behl, Hans-Werner Kohler, Uwe Schmeier, Jurgen Meyer
  • Surface-modified precipitated silicas
    Publication number: 20040249049
    Abstract: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.
    Type: Application
    Filed: May 13, 2004
    Publication date: December 9, 2004
    Applicant: DEGUSSA AG
    Inventors: Hans-Dieter Christian, Jurgen Schubert, Uwe Schmeier