Patents by Inventor Nelson H. Kasten

Nelson H. Kasten 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).

  • Intumescent fire retardant coating compositions
    Patent number: 4247435
    Abstract: Improved aqueous intumescent fire retardant coating compositions comprising:(A) a carbonific;(B) a film-forming binder; and(C) a substantially water-insoluble phosphorus-containing material having at least one P-O-P linkage;wherein (A), (B) and (C) constitute from about 20 to about 90 percent by weight of the total composition, the improvement wherein said composition further comprises a viscosity stabilizing amount of an organic chelating agent, which agent is different from components (A), (B) or (C).
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: January 27, 1981
    Assignee: Monsanto Company
    Inventor: Nelson H. Kasten
  • Weather-durable aqueous fire retardant stabilized against gelation
    Patent number: 4145296
    Abstract: Concentrated ammonium salt compositions containing a binder and a viscosity control agent, when utilized in aqueous dispersion, are stabilized against gelation by addition of an inhibitor. The aqueous dispersion is applied to foliage, vegetation, logging slash and the like to hinder or prevent wildfires during prolonged weather exposure. Typical gelation inhibitors are morpholine, ethylenediamine and monoethanolamine.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: March 20, 1979
    Assignee: Monsanto Company
    Inventors: Thomas U. Fox, Nelson H. Kasten