Patents by Inventor Hans-Jurgen Sander

Hans-Jurgen Sander 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).

  • Antistatically Finished Polymer Compositions, The Preparation and Use Thereof
    Publication number: 20080171819
    Abstract: The invention is a polymer composition and a method of preparing same, wherein the polymer composition comprises at least one perchlorate and at least one organic solvent. The polymer composition is preferably for use with halogen-containing polymers.
    Type: Application
    Filed: December 16, 2005
    Publication date: July 17, 2008
    Inventors: Stefan Fokken, Hans-Jurgen Sander
  • Stabilizer Composition for Halogenated Polymers
    Publication number: 20080087864
    Abstract: The present invention relates to stabilizer compositions for halogenated polymers, containing perchlorates and lead compounds, to polymer compositions containing said stabilizer compositions as well as to moulded articles that can be produced by using the described stabilizer compositions or polymer compositions.
    Type: Application
    Filed: December 13, 2004
    Publication date: April 17, 2008
    Inventors: Frank Mulder, Hans-Jurgen Sander
  • Stabiliser composition for halogen-containing polymers
    Publication number: 20060004128
    Abstract: A stabiliser composition for foams of halogen-containing polymers, comprising from 0.01 to about 50% by weight of at least one salt of a halogen-containing oxyacid and from 0.5 to about 50% by weight of at least one blowing agent, both based on the total weight of the stabiliser composition.
    Type: Application
    Filed: May 26, 2005
    Publication date: January 5, 2006
    Inventors: Stefan Fokken, Hans-Jurgen Sander
  • Process for the stabilization of a stabilizer mixtures for recycled plastic mixtures
    Patent number: 6525158
    Abstract: Recycled mixtures of plastics, predominantly thermoplastics, as predominantly produced in the household, in commerce and also in industry and useful material collections, can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and an inorganic compound from the series consisting of metal oxides, hydroxides and carbonates.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: February 25, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kurt Hoffmann, Heinz Herbst, Rudolf Pfaendner, Hans-Jürgen Sander, Franciszek Sitek
  • Process for the stabilization of and stablizer mixtures for recycled plastics
    Patent number: 5804623
    Abstract: Recycled plastics, predominandy thermoplastics, from domestic, commercial and industrial waste can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and a metal salt of a fatty acid.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 8, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kurt Hoffmann, Heinz Herbst, Rudolf Pfaendner, Hans-Jurgen Sander, Franciszek Sitek
  • Process for the stabilization of and stabilizer mixtures for recycled plastics
    Patent number: 5643985
    Abstract: Recycled plastics, predominanty thermoplastics, from domestic, commercial and industrial waste can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and a metal salt of a fatty acid.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: July 1, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Kurt Hoffmann, Heinz Herbst, Rudolf Pfaendner, Hans-Jurgen Sander, Franciszek Sitek
  • Stabilized halogen-containing polymers
    Patent number: 5534566
    Abstract: Use of a di- or polysaccharide alcohol and an inorganic or organic zinc, aluminum or rare-earth compound allows a high degree of stabilization of a halogen-containing polymer or polymer recyclate.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: July 9, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Rolf Drewes, Karl J. Kuhn, Hans-Jurgen Sander, Markus Kolb
  • Stabilized polyvinyl chloride
    Patent number: 5519077
    Abstract: A high degree of stabilization of polyvinyl chloride is achieved by using a perchlorate, a terminal epoxide compound and an antioxidant.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: May 21, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Drewes, Markus Kolb, Karl J. Kuhn, Hans-Jurgen Sander, Wolfgang Wehner