Patents by Inventor Peter J. Corbett

Peter J. Corbett 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).

  • Method and compositions relating to the activation of fluorescent whitening agents
    Patent number: 4670183
    Abstract: A fluorescent whitening agent is activated using a polymer of a hydroxyalkyl (meth)acrylate such as poly(2-hydroxyethyl acrylate).
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: June 2, 1987
    Assignee: The Dow Chemical Company
    Inventors: Hendrik W. Louman, Peter J. Corbett
  • Thickened paper coating composition
    Patent number: 4423118
    Abstract: A coating composition, comprising an aqueous dispersion of a pigment such as clay and a binder such as a latex of a copolymer of styrene and butadiene thickened with a water-soluble copolymer of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid such as acrylic acid, an ethylenically unsaturated carboxamide such as acrylamide and an ethylenically unsaturated monomer having limited solubility in water such as acrylonitrile, is effectively employed in coating paper and other cellulosic web materials.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: December 27, 1983
    Assignee: The Dow Chemical Company
    Inventors: Peter J. Corbett, Martin G. Aschwanden