Patents Assigned to Conweb Corporation
  • Polymeric and cellulosic fiber material for removing oil from water
    Patent number: 4070287
    Abstract: Material comprising blends of polymeric and cellulosic fibers is disclosed which is particularly suited for removing oil from aqueous mixtures thereof. The fibers are binded into a web or mat-like structure or blended in an unbonded form and retained by a fine mesh net-like enclosure. The polymeric fiber may be a foamed fiber and a method for producing foamed polymeric fibers is disclosed.
    Type: Grant
    Filed: September 14, 1976
    Date of Patent: January 24, 1978
    Assignee: Conweb Corporation
    Inventors: Donald E. Wiegand, Frederick H. Riedel, Otis R. Videen