Patents by Inventor Joachim Korpiun

Joachim Korpiun 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).

  • Pretreatment of plastic materials for metal plating
    Patent number: 4039714
    Abstract: Plastics and articles made therefrom are metal plated by conditioning their surface by a treatment with sulfur trioxide vapor or a sulfur trioxide containing atmosphere. The thus conditioned plastics or plastic articles are then metal plated, if required, after sensibilization, nucleation or activation, and treatment with a reducing solution. Metal plating is effected by chemical deposition of the metal or by electroplating. The resulting metal layer is reenforced, if required, also by chemical plating or electroplating. The resulting metal coating has a surprisingly high adhesive strength.
    Type: Grant
    Filed: June 11, 1974
    Date of Patent: August 2, 1977
    Assignee: Dr. -Ing. Max Schloetter
    Inventors: Jiri Roubal, Joachim Korpiun