Patents Assigned to Thermocolor Corporation
  • Patent number: 5176751
    Abstract: A color concentrate pellet and a method for producing same. Pigment and carrier, both in powdered form, are placed in a high intensity bowl-type mixer. Small granules are produced. These granules are cold-pressed in a pellet mill and color concentrate pellets of a conventional size and shape are produced. These pellets contain up to 90% pigment by weight, and have a melting point of less than about 230.degree. F. The pellets are friable and are mixable and processable with commercially sized natural resin pellets without substantial settling out. The carrier in the pellet acts as a universal carrier. Pellets with additives in substitution for pigments are also disclosed.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: January 5, 1993
    Assignee: Thermocolor Corporation
    Inventor: Larry K. Findley