Patents by Inventor Brent T. Polak

Brent T. Polak 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).

  • Foamed starch structures & methods for making them
    Publication number: 20020068139
    Abstract: Article of manufacture comprising (i) a sheet of a foamed mixture of starch and at least one of, a polyhydroxy ether, a poly(hydroxy amino ether), a poly(hydroxy ether sulfonamide), a poly(hydroxy ether sulfide), a poly(hydroxy amide ether), or polyvinyl alcohol and (ii) a barrier layer. Specifically, a beverage cup or ice chest with foamed starch/polymer core layer.
    Type: Application
    Filed: December 4, 2000
    Publication date: June 6, 2002
    Inventors: Brent T. Polak, Marie S. Winkler, Donald E. Kirkpatrick
  • Material for absorbing aqueous fluids
    Patent number: 4535098
    Abstract: Water absorbent compositions comprise a water swellable polymer which contains polymerized water-soluble monomers, water-insoluble monomers having a pendant hydrophobic moiety, and optionally, a crosslinking monomer. The polymer can be blended with a colloidal support such as colloidal silica. The compositions exhibit good water absorbency rates and high gel strengths.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: August 13, 1985
    Assignee: The Dow Chemical Company
    Inventors: Syamalarao Evani, James H. Oswald, Thomas L. Staples, Brent T. Polak