Stir-in form of pigment
AssigneeSun Chemical Corporation
InventorsMark Ortalano, Darleen Wright, William Burgess, Brian Thompson
Life of this patent
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Abstract
Disclosed is a composition and process of manufacture of a stir-in form of pigment with increased dispersing and color properties. Pigment is slurried with acetylenic dispersing agents, wet-milled to a particular particle size, and then dried to powder or granulate form. Also disclosed is a process for producing a pigmented paint composition from the stir-in pigment.
Claims26
A pigment powder composition comprising a wet milled combination of organic pigment, water, and acetylenic surfactant, which has been dried to a powder and wherein the surfactant is about 5 to 40% of the powder.
A paint composition comprising a pigment powder composition and a paint base, wherein the pigment powder composition comprises a wet milled combination of pigment, water, and acetylenic surfactant, which has been dried to a powder.
A method of forming a pigment powder comprising:
- providing a mixture of pigment, milling liquid, and acetylenic surfactant,
- wet milling the mixture, and
- drying the milled mixture.
Dependencies are inferred from the claim text.