Patents by Inventor Shubha Maudgal

Shubha Maudgal 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).

  • Poly(carbonate-imide) polymer
    Patent number: 4713439
    Abstract: A novel series of polymers and copolymers based on a polyimide backbone with the incorporation of carbonate moieties along the backbone. The process for preparing these polymers and copolymers is also disclosed as is a novel series of dinitrodiphenyl carbonates and diaminodiphenyl carbonates. The novel polymers and copolymers exhibit high temperature capability and because of the carbonate unit, many exhibit a high degree of order and/or crystallinity.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: December 15, 1987
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Terry L. St. Clair, Shubha Maudgal, J. Richard Pratt
  • Acetylene (ethynyl) terminated polyimide siloxane and process for preparation thereof
    Patent number: 4624888
    Abstract: Siloxane-containing addition polyimides having improved physical property characteristics of flexibility, drape, tack and toughness and the process for preparing and utilizing same are disclosed.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: November 25, 1986
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Terry L. St. Clair, Shubha Maudgal