Patents by Inventor Erich Lux

Erich Lux 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).

  • Polycarbonates and a process for their preparation
    Patent number: 4127561
    Abstract: The present invention provides thermoplastic aromatic polycarbonates and a process for their production according to the phase boundary polycondensation process, characterized in that tertiary amines are employed as catalysts and are distilled beforehand over about 0.3-10% by weight, relative to the weight of the tertiary amine, of reducing agents and/or acid anhydrides with the exclusion of atmospheric oxygen.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: November 28, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Alewelt, Gunter Jacobs, Dieter Margotte, Erich Lux