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US 6,649,122 B1Granted
Aqueous colorant system for incorporation into plastics
OwnerLarry L. Lough, John V. Standish +1inventors
InventorsLarry L. Lough, John V. Standish, Michael A. Jacobs
Life of this patent
Estimating the term…
Abstract
A liquid colorant system for plastics comprising from about 10 percent to about 80 percent by weight colorant; from about 0.5 percent to about 30 percent dispersant; and, from about 25 percent to about 90 percent water.
Claims5
A method of coloring a thermoplastic material comprising one of injection molding, extruding, compression molding, blow molding, or rotational molding said thermoplastic material, said thermoplastic including a colorant system comprised of:
- (a) from about 10 percent to about 80 percent by weight colorant,
- (b) from about greater than 0 percent to about 30 percent dispersant, and
- (c) from about 25 percent to about 90 percent water.
Dependencies are inferred from the claim text.