Patents by Inventor Patricia M. Cotts

Patricia M. Cotts 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).

  • Polyimide coating compositions based on meta-dialkyldihydrogen pyromellitate and aromatic diamines
    Patent number: 4849501
    Abstract: A composition for the application of a planar polyimide coating having a glass transition temperature above 300.degree. C. comprises a solution in an anhydrous, aprotic solvent of an aromatic diamine and a dialkyldihydrogen pyromellitate which is more than 90% meta isomer.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: July 18, 1989
    Assignee: International Business Machines Corporation
    Inventors: Richard D. Diller, deceased, Anthony F. Arnold, Ying Ying Cheng, Patricia M. Cotts, Donald C. Hofer, Mahmoud Khojasteh, Elwood H. Macy, Prabodh R. Shah, Willi Volksen
  • Polyimide coating compositions based on meta-dialkyldihydrogen pyromellitate and aromatic diamines
    Patent number: RE34524
    Abstract: A composition for the application of a planar polymide coating having a glass transition temperature above 300.degree. C. comprises a solution in an anhydrous, aprotic solvent of .Iadd.the reaction product .Iaddend.of an aromatic diamine and a .[.dialkyldihydrogen.]. .Iadd.dialkyl .Iaddend.pyromellitate .Iadd.diacyl chloride .Iaddend.which .[.is more than.]. .Iadd.comprises about .Iaddend.90% .Iadd.or more .Iaddend.meta isomer.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: January 25, 1994
    Assignee: International Business Machines Corporation
    Inventors: Richard D. Diller, deceased, Anthony F. Arnold, Ying Y. Cheng, Patricia M. Cotts, Donald C. Hofer, Mahmoud M. Khojasteh, Elwood H. Macy, Prabodh R. Shah, Willi Volksen