Patents by Inventor Kenneth J. Kolonko

Kenneth J. Kolonko 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).

  • Propellant binder prepared from a PCP/HTPB block polymer
    Patent number: 4853051
    Abstract: Binders for propellants for the like comprise elastomers which are based on block copolymers in which a pair of poly(caprolactone) blocks flank a central hydroxyl-terminated poly(butadiene) block. The block polymers are cured with isocyanates through the OH termini of the poly(caprolactone) blocks. The elastomers have inherent energies and other characteristics intermediate those of PCP and HTPB and have good compatibility with nitrate ester plasticizers.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: August 1, 1989
    Assignee: Morton Thiokol, Inc.
    Inventors: S. John Bennett, Michael W. Barnes, Kenneth J. Kolonko
  • High molecular weight polycaprolactone prepolymers used in high-energy formulations
    Patent number: 4775432
    Abstract: Poly(caprolactone) polymers are provided having molecular weights of 4000 or higher, are used to form propellant binders. When the high molecular weight poly(caprolactone) polymers are used in propellant formulations and cured with isocyanates of adequate functionality, propellants are produced having improved stress and strain characteristics relative to presently formulated propellants having binders of cured, lower molecular weight poly(caprolactone) polymers.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: October 4, 1988
    Assignee: Morton Thiokol, Inc.
    Inventors: Kenneth J. Kolonko, Michael W. Barnes, Lydia L. Biegert