Patents Assigned to Western Industrial Clay Products, Inc.
  • Particulate urea with finely divided inorganic material incorporated for hardness nonfriability and anti-caking
    Patent number: 5782951
    Abstract: A particulate urea product having improved hardness, nonfriable and anti-caking properties and which is useful for either direct application to the soil or as an intermediate product for the subsequent incorporation with other fertilizer materials into solid bulk blends. The product consists of an admixture of urea and a finely divided inorganic material selected from the group consisting of calcium oxide, calcium hydroxide, cement and fly ash and is in particulate form, some examples of which are granules or prills.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: July 21, 1998
    Assignee: Western Industrial Clay Products, Inc.
    Inventors: Peter B. Aylen, James C. Blyth