Patents by Inventor Jakob Jansen

Jakob Jansen 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).

  • Continuous process for melt-spinning monofilaments
    Patent number: 5785997
    Abstract: The invention relates to a continuous process for the formation of monofilaments having a diameter of from 60 .mu.m to 500 .mu.m from filament-forming polymers by melt-spinning the polymer, optionally quenching the formed polymer filaments below the melt-spinning head with a cooling medium, cooling the filaments in a liquid bath having a temperature of from -10.degree. C. to 150.degree. C., removing the entrained water and post-treating the filaments by spin finishing, drawing and fixing at a filament delivery speed which is greater than 600 to 4000 m/min after the fixing step.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: July 28, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Budenbender, Eckhard Gartner, Jakob Jansen
  • Continuous process for melt-spinning monofilaments
    Patent number: 5518670
    Abstract: The invention relates to a continuous process for the formation of monofilaments having a diameter of from 60 .mu.m to 500 .mu.m from filament-forming polymers by melt-spinning the polymer, optionally quenching the formed polymer filaments below the melt-spinning head with a cooling medium, cooling the filaments in a liquid bath having a temperature of from -10.degree. C. to 150.degree. C., removing the entrained water and post-treating the filaments by spin finishing, drawing and fixing at a filament delivery speed which is greater than 600 to 4000 m/min after the fixing step.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: May 21, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Budenbender, Eckhard Gartner, Jakob Jansen