Patents by Inventor Stella M. McKinney

Stella M. McKinney 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).

  • Low energy cured composite repair system based on imidazole-blocked naphthyl-diisocyanates
    Patent number: 5145541
    Abstract: A fiber reinforced resin matrix composite material repair system is provided, which critically employs a resin comprising a catalyst of the formula I: ##STR1## with a multifunctional epoxy resin, the resin system being sealed in a water-proofed environment prior to being coated onto a fiber reinforcement. The coated fiber reinforcement is applied over the damaged area, the damaged portion having been removed, and the surrounding surface smoothed. An adhesive is applied to the remaining surface, prior to application of the patch. The resulting patch, which may further include thermoplastic toughening agents and an enhancer, can be directly cured at temperatures below 212.degree. F. to give physical properties similar to the original material.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: September 8, 1992
    Assignee: Hexcel Corporation
    Inventors: Kenneth S. Baron, Susan M. Brinkerhoff, Frank W. Lee, Stella M. McKinney
  • Low energy cured composite repair system based on epoxy resin with imidazole blocked naphthyl diisocyanate catalyst having extended shelf life
    Patent number: 5086149
    Abstract: A fiber reinforced resin matrix composite material repair system is provided, which critically employs a resin comprising a catalyst of the formula I: ##STR1## with a multifunctional epoxy resin, the resin system being sealed in a water-proofed environment prior to being coated onto a fiber reinforcement. The coated fiber reinforcement is applied over the damaged area, the damaged portion having been removed, and the surrounding surface smoothed. An adhesive is applied to the remaining surface, prior to application of the patch. The resulting patch, which may further include thermoplastic toughening agents and an enhancer, can be directly cured at temperatures below 212.degree. F. to give physical properties similar to the original material.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: February 4, 1992
    Assignee: Hexcel Corporation
    Inventors: Kenneth S. Baron, Susan M. Brinkerhoff, Frank W. Lee, Stella M. McKinney