Patents by Inventor Hans Kaloff

Hans Kaloff 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).

  • Stretched polycarbonate films filled with carbon black
    Patent number: 4791016
    Abstract: A polycarbonate film obtained by dispersing carbon black in a solution of thermoplastic aromatic polycarbonate, producing a cast film, and subsequently stretching the cast film, is characterized in that its elongation at break is greater than that of a corresponding unstretched similarly filled film having an identical thickness.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: December 13, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Schulte, Werner Tischer, Werner Waldenrath, Hans Kaloff
  • Electrically conductive polycarbonate laminates and their preparation
    Patent number: 4599262
    Abstract: The present invention relates to polycarbonate laminates consisting of an electrically conductive polycarbonate layer (A) containing carbon black or graphite, and an electrically insulating polycarbonate layer (B), their preparation and their use in the electrical sector.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: July 8, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Schulte, Werner Tischer, Hans Kaloff, Hans-Leo Weber
  • Process for the production of cast films from polyaryl sulphone/polycarbonate mixtures
    Patent number: 4343756
    Abstract: Mixtures of polyaryl sulphones and polycarbonates solutions made stable by the introduction of solubilizing agents are used to prepare cast films of improved properties.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: August 10, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Leo Weber, Eckart Reese, Hans Kaloff, Hans-Josef Fausten
  • Process for the production of synthetic endless filaments with good crimping properties
    Patent number: 4164838
    Abstract: The invention is related to a process for the stretch-texturing of high-molecular weight linear synthetic endless filaments travelling at speeds of 300 to 1200 meters per minute by continuously guiding the filaments through a delivery zone, a heat-fixing zone, a false-twister and a stretching godet. The endless filaments are passed through a stretching zone S 55 to 180 cm long, defined by the distance between the delivery stage and the stretching godet, the distance between the delivery stage and the false-twister inlet amounting to S-X cm and the distance X between the false-twister outlet and the stretching godet being 5 to 30 cm.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: August 21, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans Bach, Karl-August Heinroth, Hans-Dieter Jurischka, Hans Kaloff, Rudolf J. Klee, Herbert Schmidt