Patents by Inventor Eberhard Borsig

Eberhard Borsig 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).

  • Stabilized unsaturated polyesters
    Patent number: 4523008
    Abstract: An unsaturated polyester, such as propylene glycol-maleic acid-phthalic acid prepolymer dissolved in styrene is interpolymerized with an ultraviolet absorber of the formula: ##STR1## and/or an antioxidant of the formula ##STR2## where R and R.sup.2 are selected from H or lower alkyl such as methyl and R.sup.1 is tertiary alkyl such as tertiary butyl to form a polymer stable to exposure to the outdoors without degradation by ultraviolet radiation, thermal and/or photooxidation.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: June 11, 1985
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Otto Vogl, Eberhard Borsig