Patents Assigned to Delta Chemicals, Inc.
  • Paper making using hectorite and cationic starch
    Patent number: 5071512
    Abstract: Addition of hectorite and a cationic starch to the furnish in a paper making operation improves the retention of filler material and the quality of the paper.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: December 10, 1991
    Assignee: Delta Chemicals, Inc.
    Inventors: Harris J. Bixler, Stephen Peats