Patents by Inventor Andrew W. Talkington

Andrew W. Talkington 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).

  • Polymerization with initiator and quaternary ammonium salt
    Patent number: 5344902
    Abstract: An improved polymerization process wherein starting material such as monomer, a mixture of monomers, a partially polymerized product, or a mixture of fully polymerized product and monomer or monomer mixture is reacted with an initiator such as an organic peroxide, hydroperoxide or perester and a quaternary ammonium salt under polymerization conditions wherein polymerization or further polymerization of the starting material is initiated. The initiator and quaternary ammonium salt are miscible with the polymerization mixture in the absence of solvent. An improved polymerization process is also provided wherein a crosslinked polymer structure is formed from an unsaturated polymer in a polymerizable monomer.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: September 6, 1994
    Assignee: Occidental Research Corporation
    Inventors: H. James Harwood, Daniel H. Jones, Andrew W. Talkington, Stephen D. Goodrich