Patents by Inventor Andrew S. Overend

Andrew S. Overend 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).

  • Plastisol compositions
    Patent number: 5324762
    Abstract: The subject of this invention is acrylic polymer plastisol compositions, wherein the acrylic polymer component of the plastisol composition is a single-stage methyl methacrylate copolymer derived from methyl methacrylate and a comonomer component comprising isobutyl methacrylate and optionally other comonomer(s). The selection of isobutyl methacrylate as a comonomer with the methyl methacrylate results in good compatibility with a wide range of plasticizers and without undue softness in the resulting plastisol.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: June 28, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: Andrew S. Overend, John C. Padget