Patents Assigned to Illinois Cereal Mills
  • Absorbent polymeric compositions derived from corn flour and starch
    Patent number: 4221684
    Abstract: Absorbent polymeric compositions are disclosed which are prepared by graft copolymerizing acrylonitrile onto a starch or corn flour-containing substrate followed by subjecting the graft copolymer to alkaline saponification. A polymeric composition of increased absorbency is obtained by isolating the saponified graft copolymer from solution as a colloidal precipitate subsequent to the slow addition of an alcohol to the solution.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: September 9, 1980
    Assignee: Illinois Cereal Mills
    Inventors: Phillip Antholz, E. Jack Swarthout
  • Absorbent polymeric compositions derived from amylaceous material-formaldehyde substrates
    Patent number: 4204983
    Abstract: Absorbent polymeric compositions are disclosed which are prepared by graft copolymerizing acrylonitrile onto an amylaceous material--formaldehyde substrate and then subjecting the graft copolymer to alkaline saponification. The resulting absorbent polymeric composition sets up into a hard gel after absorbing multiple weights (e.g., up to about 3,000 times its own weight) of water.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: May 27, 1980
    Assignee: Illinois Cereal Mills
    Inventors: E. Jack Swarthout, Phillip Antholz