Patents by Inventor Walter J. Monacelli

Walter J. Monacelli 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).

  • Bis-(maleamic acid) derivatives of triamines
    Patent number: 4438280
    Abstract: The compositions described herein comprise polyimides having bis-maleimide terminal groups and having the formula: ##STR1## wherein Q is a trivalent aromatic radical, Ar is a divalent aromatic radical, Ar" is a tetravalent aromatic radical and n has a value of 0-20. Derivatives may be made of these compounds by homopolymerization, copolymerization with other copolymerizable materials and by reaction with Diels-Alder reactable materials.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: March 20, 1984
    Assignee: Plastics Engineering Company
    Inventor: Walter J. Monacelli
  • Polyimides having bis-maleimide terminal groups
    Patent number: 4418181
    Abstract: The compositions described herein comprise polyimides having bis-maleimide terminal groups and having the formula: ##STR1## wherein Q is a trivalent aromatic radical, Ar is a divalent aromatic radical, Ar" is a tetravalent aromatic radical and n has a value of 0-20. Derivatives may be made of these compounds by homopolymerization, copolymerization with other copolymerizable materials and by reaction with Diels-Alder reactable materials.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: November 29, 1983
    Assignee: Plastics Engineering Company
    Inventor: Walter J. Monacelli