Patents by Inventor Lily E. Koch

Lily E. Koch 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).

  • High energy cast explosives based on dinitropropylacrylate
    Patent number: 5092944
    Abstract: A castable explosive composition of 80 to 87 percent cyclo-1,3,5,7-tetramylene-2,4,6,8-tetra nitramine (HMX) in dinitropropyl acrylate binder is obtained through careful choice of particle sizes. Up to 92% solids loading, without loss of castability, is obtained when spherical aluminum is incorporated into the mix. Other comonomers may be used in the binder and other solids added.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: March 3, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Barbara A. Stott, Lily E. Koch
  • Preparing an elastomeric bound explosive
    Patent number: 5074937
    Abstract: Adhesives and binders for cast explosive compositions, pressed explosive compositions, propellants and pyrotechnic articles. The adhesives are prepared by reacting 2-ethylhexyl acrylate and N-vinyl-2-pyrrolidone in a copolymerization reaction with the aid of a suitable crosslinker. Binders are prepared by reacting the above-named monomers in a copolymerization reaction with the aid of a crosslinker and a curative. Copolymers prepared by reacting from 40 to 90 weight percent of the acrylate and from 60 to 10 weight percent of the pyrrolidone are preferred.
    Type: Grant
    Filed: May 8, 1975
    Date of Patent: December 24, 1991
    Inventors: Barbara A. Stott, Lily E. Koch, Reba C. Ward