Patents by Inventor Benjamin L. Shneider

Benjamin L. Shneider 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).

  • Polyimides prepared from cyclic dianhydrides
    Patent number: 4536560
    Abstract: Cyclic dianhydrides and polyimides are prepared from maleic anhydride compounds and diolefins. The diolefins are alpha- , omega-linear diolefins of up to 100 carbon atoms or cyclic diolefins of up to 40 carbon atoms. The polyimides and copolyimides prepared from these cyclic dianhydrides are useful in films, fibers and coatings.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: August 20, 1985
    Assignee: Standard Oil Company (Indiana)
    Inventors: Mark L. Winzenburg, Ellis K. Fields, Benjamin L. Shneider
  • Cyclic dianhydrides prepared from maleic anhydride
    Patent number: 4490545
    Abstract: Cyclic dianhydrides and polyimides are prepared from maleic anhydride compounds and diolefins. The diolefins are alpha-, omega-linear diolefins of up to 100 carbon atoms or cyclic diolefins of up to 40 carbon atoms. The polyimides and copolyimides prepared from these cyclic dianhydrides are useful in films, fibers and coatings.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: December 25, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Mark L. Winzenburg, Ellis K. Fields, Benjamin L. Shneider