Patents by Inventor Wulf Munzner

Wulf Munzner 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).

  • Production of magnetic recording media possessing a backing coating, and magnetic recording media thus produced
    Patent number: 4645723
    Abstract: A process for the production of magnetic recording media by applying a magnetic layer, which consists essentially of magnetic material finely dispersed in organic polymers, to one side of a flexible base, and applying a non-magnetizable backing coating which is free of inorganic solids to that side of the base which is opposite the magnetic layer, wherein the backing coating consists of two or more polymers which are incompatible with one another and have precipitated from a solvent mixture, and magnetic recording media produced by this process.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: February 24, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Milena Melzer, Hermann Roller, Norbert Schneider, Horst Fitterer, Wulf Munzner