Patents by Inventor Edmund C. Steinle, Jr.

Edmund C. Steinle, Jr. 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).

  • Polymer/polyols and process for production thereof
    Patent number: 4172825
    Abstract: This invention relates to a novel process for producing polymer/polyols characterized by the use of specific combinations of acrylonitrile and styrene and by utilizing certain peroxyester catalysts. Methacrylonitrile and/or alpha-methyl styrene may optionally be used as substitutes for the acrylonitrile and styrene, respectively. The process produces novel polymer/polyols characterized by relatively high polymer contents and increased stability. These polymer/polyols are stable, fluid, essentially free from scrap and seeds as produced and contain relatively small polymer particles such that, in the preferred embodiment, essentially all are less than about 30 microns in diameter.
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: October 30, 1979
    Assignee: Union Carbide Corporation
    Inventors: Edgar G. Shook, Donald W. Simroth, Russell VAN Cleve, Edmund C. Steinle, Jr.