Patents by Inventor Bernhard John

Bernhard John 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).

  • Polyurea polyrethanes having improved physical properties
    Patent number: 6989406
    Abstract: A process for preparing oil and petroleum-resistant cellular to solid (polyurea)polyurethanes (PURS) with improved physical properties in which a polyether polyol component having a number average molecular weight of from 1000 to 8000 and a polyester polyol component having a number average molecular weight of from 1000 to 6000 are reacted with a polyisocyanate and the (polyurea) polyurethanes produced by that process. The (polyurea)polyurethanes are particularly useful for personal safety equipment and in the construction of automobiles.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: January 24, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Detlef Arntz, Klaus Brecht, Bernhard John, Peter Seifert, Michael Schneider
  • Use of polyether-polyurethane for safety clothing
    Patent number: 6521676
    Abstract: Safety clothing is produced by molding polyether-based plastic-forming compositions. Particularly preferred articles of safety clothing produced by this process are safety shoe soles.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: February 18, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Brecht, Hans-Detlef Arntz, Bernhard John
  • USE OF POLYETHER-POLYURETHANE FOR SAFETY CLOTHING
    Publication number: 20020013377
    Abstract: Safety clothing is produced by molding polyether-based plastic-forming compositions. Particularly preferred articles of safety clothing produced by this process are safety shoe soles.
    Type: Application
    Filed: May 17, 1999
    Publication date: January 31, 2002
    Inventors: KLAUS BRECHT, HANS-DETLEF ARNTZ, BERNHARD JOHN