Patents by Inventor William Steffancin

William Steffancin 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).

  • Platable high heat ABS resins and plated articles made therefrom
    Patent number: 4272584
    Abstract: A metal platable high heat ABS resin containing alkyl substituted silicone polymers and, optionally, up to 35% by weight of a bis-phenol polycarbonate and plated parts made therefrom.
    Type: Grant
    Filed: October 16, 1979
    Date of Patent: June 9, 1981
    Assignee: Borg-Warner Corporation
    Inventors: Gerald Goldberg, Charles L. Myers, Charles F. Parsons, William Steffancin
  • Amorphous polyester graft polymer alloys
    Patent number: 4117034
    Abstract: Alloys of amorphous copolyesters with graft polymers of styrene-methyl methacrylate, styrene-methyl methacrylate-acrylonitrile or styrene-acrylonitrile on diene rubber substrates exhibit synergistic enhancement of impact properties in the range of 5 to 40% by weight graft polymer. Notched Izod impacts above 10 ft lbs/in notch result in the range where the synergistic effect occurs.
    Type: Grant
    Filed: February 18, 1977
    Date of Patent: September 26, 1978
    Assignee: Borg-Warner Corporation
    Inventor: William Steffancin