Patents by Inventor Paul A. Steiner

Paul A. Steiner 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).

  • Patent number: 4992325
    Abstract: A prepeg formulation comprising prepreg filament fibers unidirectionally aligned, and/or woven and nonwoven fabrics, a thermosetting matrix resin and a small amount of well dispersed inorganic whiskers in the resin, alone or in combination with extremely fine fibers of a thermoformable polymer having at least one of a T.sub.m or T.sub.g greater than about 300.degree. C. or no T.sub.m or T.sub.g and a decomposition temperature greater than about 300.degree. C. The preferred matrix resin is a blend of a thermosetting epoxy resin and an amorphous thermoplastic polymer having a T.sub.g greater than about 195.degree. C.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: February 12, 1991
    Assignee: The Dexter Corporation
    Inventors: Yang S. Kim, Paul A. Steiner
  • Patent number: 4874661
    Abstract: A prepreg formulation comprising prepreg filament fibers unidirectionally aligned, and/or woven and nonwoven fibrics, a thermosetting matrix resin and thin surface layers of extremely fine fibers of a thermoformable polymer having at least one of a T.sup.m or T.sup.g greater than about 300.degree. C. or no T.sup.m or T.sub.g and a decomposition temperature greater than about 300.degree. C. The preferred matrix resin is a blend of a thermosetting epoxy resin and an amorphous thermoplastic polymer that has a T.sub.g greater than about 195.degree. C. The invention contemplates the addition of small amounts of a Cr(III) complex and inorganic whiskers.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: October 17, 1989
    Inventors: James M. Browne, Paul A. Steiner