Patents Assigned to Lebanon Chemical Corporation
  • Patent number: 6464746
    Abstract: A process for making homogeneous granules of slow-release fertilizer to deliver high doses of slow-release nitrogen in pellets that disperse or fall apart when contacted by moisture. The method includes mixing particles of slow-release nitrogen with particles of a potassium source and particles of a phosphorus source, to make a homogeneous blend of the particles. Then, the blended particles are moistened with water or an aqueous solution of urea to moisten the homogeneous blend. After moistening, the blended particles are contacted with an aqueous suspension of urea-formaldehyde resin to bind the particles into homogeneous granules. The aqueous suspension of urea formaldehyde resin preferably has a urea:formaldehyde ratio of about 1:1.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: October 15, 2002
    Assignee: Lebanon Chemical Corporation
    Inventors: Gary B. Neyman, Elmer A. Derr
  • Patent number: D516918
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: March 14, 2006
    Assignee: Lebanon Chemical Corporation
    Inventors: Stuart Leslie, Justin Philip Waldinger, Dio Climaco Cavero