Patents by Inventor Katherine Anne Cline Elting

Katherine Anne Cline Elting 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).

  • Graft copolymer and process for making same
    Patent number: 4057683
    Abstract: A reaction process and product obtained thereby, said process comprising reacting a polymerizable monomeric compound containing a polymerizably reactive vinyl group, such as methyl methacrylate, acrylonitrile, vinyl acetate, or the like, in an aqueous medium at a pH not greater than about 3.5 in the presence of a ceric salt which is soluble in at least one component of said medium, and an inorganic substrate, such as a clayey substrate, e.g., montmorillonite, or the like, capable of initiating polymerization of said monomeric compound, wherein said inorganic substrate is a reducing agent for said reaction.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: November 8, 1977
    Assignee: Milchem Incorporated
    Inventor: Katherine Anne Cline Elting