Plastics coloring using cottonseed oil-based liquid color compositions
OwnerStephen B. Maguireinventor
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Abstract
A method of fabricating plastic products having a preselected color, comprising preparing a dispersion of pigment of the preselected color in cottonseed oil; supplying a preselected plastic resin for the product to be fabricated to a process machine having a rotating screw; furnishing the dispersion to the process machine at a position adjacent to threaded portion of the rotating screw; and blending the dispersion and the resin by rotating the screw.
Claims11
A liquid colorant for use in molding or extruding plastic products comprising pigment and cottonseed oil.
A liquid colorant for use in molding or extruding plastic products consisting of pigment and cottonseed oil.
Dependencies are inferred from the claim text.