Patents by Inventor Kenneth L. Eilers

Kenneth L. Eilers 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).

  • Process for preparing rigid PVC formulations
    Patent number: 3983186
    Abstract: There is disclosed a low temperature blending process for preparing formulations comprising a polyvinyl chloride resin intimately admixed with a polyacrylate-modified PVC process aid, these formulations being particularly suited for use in various forming processes such as extrusion, calendering and injection molding which result in the manufacture of shaped articles such as pipes, rods, sheets and films whose surfaces are characterized by their high degree of smoothness and glossiness.
    Type: Grant
    Filed: August 4, 1971
    Date of Patent: September 28, 1976
    Assignee: Stauffer Chemical Company
    Inventors: Kenneth L. Eilers, Adam F. Kopacki
  • N,N-Dialkyl O,O-bis(haloalkyl)phosphoramidate flame retardant
    Patent number: 3966478
    Abstract: Fire resistant polymer compositions containing, as fire-retardant, N,N-dialkyl, O,O'-bis(haloalkyl)phosphoramidates. Polymers include urethanes, rayon and cellulose acetate.
    Type: Grant
    Filed: July 21, 1972
    Date of Patent: June 29, 1976
    Assignee: Stauffer Chemical Company
    Inventors: Arthur D. F. Toy, Kenneth L. Eilers
  • Process for preparing 0,0-diaryl N,N-dialkyl phosphoramidates
    Patent number: 3937765
    Abstract: Flame retardant compounds, O,O-diaryl N,N-dialkyl phosphoramidates are prepared by reacting a phosphoramidohalidate or a phosphoramidic dihalide with a phenol in the presence of an alkali or alkaline earth metal hydroxide and a water-insoluble, water-immiscible, non-hydroxylic polar ketone which is a solvent for both the reactants and the product. High yields are obtained.
    Type: Grant
    Filed: October 12, 1970
    Date of Patent: February 10, 1976
    Assignee: Stauffer Chemical Company
    Inventors: Arthur D. F. Toy, Kenneth L. Eilers