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US 2003/0170385 A1Published application
Continuous process for coloring particulate materials
OwnerScott P. Thompson, Rick D. Stonekinginventors
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Abstract
A process for coloring high-volumes of sand, stone, and other particulate material by continuously feeding the non-colored particulate material, one or more colorants, and an adhesive binder into a mixer and continuously mixing these materials. During the mixing process, colored particulate material is continuously being removed and transported away from the process as a colored end product.
Claims10
A continuous process for coating particulate material comprising:
- continuously feeding a particulate material and a coating material to a mixer;
- continuously mixing the particulate material and coating material in the mixer to produce a coated product;
- and
- continuously removing coated product from the mixer.
1 more element
Dependencies are inferred from the claim text.