Patents by Inventor Hermann Blädel

Hermann Blädel 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).

  • Aqueous dispersions of fluoropolymers
    Patent number: 7358296
    Abstract: Fluorine-containing emulsifiers can be removed from fluoropolymer dispersions by adding to the dispersion a non ionic emulsifier, removing the fluorine-containing emulsifier by contact with an anion exchanger and separating the dispersion from the anion exchanger. The resulting dispersions can be concentrated and used for coating applications.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: April 15, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Hermann Blädel, Klaus Hintzer, Gernot Löhr, Werner Schwertfeger, Reinhard Albert Sulzbach
  • Aqueous dispersion of fluoropolymers of different particle size
    Patent number: 6867261
    Abstract: Aqueous dispersions of fluoropolymers obtained by emulsion polymerization and containing at least one fluoropolymer A) with an average particle size (number-average) of at least 200 nm and at least one fluoropolymer B) with an average particle size (number-average) of not more than 100 nm, one of components A) and B) being a thermoplastic and the other component not being processable from the melt, and the entire dispersion having a non-monomodal number distribution of particle diameter, are suitable for saturating, impregnating surfaces, for example of fibers or sheet-like articles made from fibers or porous materials, in particular for coating glass-fiber fabrics as well as for formulating metal-coating systems.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: March 15, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Hermann Blädel, Gernot Löhr, Brigitte Grossman, Gerd Grossmann
  • Aqueous dispersions of fluoropolymers
    Patent number: 6833403
    Abstract: Fluorine-containing emulsifiers can be removed from fluoropolymer dispersions by adding to the dispersion a nonionic emulsifier, removing the fluorine-containing emulsifier by contact with an anion exchanger and separating the dispersion from the anion exchanger. The resulting dispersions can be concentrated and used for coating applications.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: December 21, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Hermann Blädel, Klaus Hintzer, Gernot Löhr, Werner Schwertfeger, Reinhard Albert Sulzbach
  • Aqueous dispersion of fluoropolymers of varying particle size
    Patent number: 6566452
    Abstract: Aqueous dispersions of fluoropolymers obtained by emulsion polymerization and containing at least one fluoropolymer A) with an average particle size (number-average) of at least 200 nm and at least one fluoropolymer B) with an average particle size (number-average) of not more than 100 nm, one of components A) and B) being a thermoplastic and the other component not being processable from the melt, and the entire dispersion having a non-monomodal number distribution of particle diameter, are suitable for saturating, impregnating surfaces, for example of fibers or sheet-like articles made from fibers or porous materials, in particular for coating glass-fiber fabrics as well as for formulating metal-coating systems.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: May 20, 2003
    Assignee: Dyneon GmbH
    Inventors: Hermann Blädel, Gernot Löhr, Gerd Grossmann