Patents by Inventor Liza M. Monette

Liza M. Monette 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).

  • Composites with interphases and methods of making the same
    Patent number: 6284372
    Abstract: A composite having fibers of relatively high elastic modulus embedded in a matrix of relatively low elastic modulus is provided with an interphase of elastic modulus less than the matrix modulus and cohesive energy higher than the matrix cohesive energy. The resulting composite has enhanced strength and toughness.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: September 4, 2001
    Assignee: Exxon Research and Engineering Co.
    Inventors: Liza M. Monette, Arnold Lustiger, Michael P. Anderson, John P. Dismukes, H. Daniel Wagner, Cary N. Marzinsky, Russell R. Mueller
  • Composite structures having improved containment strength
    Patent number: 6240971
    Abstract: Composite fiber reinforced structures, such as pipes or storage tanks, having improved resistance to microcracking and delamination and improved containment strength are disclosed. The walls of the structures comprise at least one layer comprising a plurality of continuous reinforcing glass fibers having an average diameter of ≦about 10 microns impregnated in a resinous binder such as a thermoset epoxy resin.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: June 5, 2001
    Assignee: Exxon Research and Engineering Company
    Inventors: Liza M. Monette, Michael P. Anderson, Russell R. Mueller, Cary N. Marzinsky, Allen S. Chiu
  • Composites and methods of making the same
    Patent number: 5814403
    Abstract: A computer model calculates a critical aspect ratio for a discontinuous fiber composite having fibers dispersed in a matrix. The critical aspect ratio is a function of the elastic modulus and the cohesive energy of the fiber and the matrix. The composite incorporates physical features such as fiber shape features or additives in the fiber or matrix which adjust the elastic modulus and/or cohesive energy of the fiber, of the matrix or both to a value different than the corresponding value for unmodified fiber material or matrix material. These adjustments are selected so that the critical aspect ratio for the material including the modifications will be less than the corresponding critical aspect ratio for the material without the modifications. The resulting composite provides enhanced load sharing between fiber and matrix.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: September 29, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Michael P. Anderson, Liza M. Monette, John P. Dismukes, Shiun Ling, David J. Srolovitz
  • Composites with interphases and methods of making the same
    Patent number: 5288555
    Abstract: A composite having fibers of relatively high elastic modulus embedded in a matrix of relatively low elastic modulus is provided with an interphase of elastic modulus less than the matrix modulus and cohesive energy higher than the matrix cohesive energy. The resulting composite has enhanced strength and toughness.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: February 22, 1994
    Assignee: Exxon Research Engineering Company
    Inventors: Liza M. Monette, Arnold Lustiger, Michael P. Anderson, John P. Dismukes, H. Daniel Wagner, Cary N. Marzinsky, Russell R. Mueller