Patents Assigned to Eucatex S.A. Industria e Comercio of Sao Paulo
  • High strength, cellulosic-gel-containing kraft paper and process for making the same
    Patent number: 4692211
    Abstract: High strength, cellulosic-gel-containing kraft paper is made by mechanically refining kraft papermaking pulp to a freeness of CSF 500-800, mixing the resulting refined pulp with from 1 to 10% hydrated cellulosic gel binder, running the resulting fluid mixture into a felted sheet and pressing and drying the sheet to form the kraft paper product.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: September 8, 1987
    Assignee: Eucatex S.A. Industria e Comercio of Sao Paulo
    Inventor: James R. Roberts