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US 5,510,409 AGranted
Foam control agents for latex paints
AssigneeAshland Inc.
InventorAndrew A. Romano
Life of this patent
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Abstract
This invention relates to foam control agents for latex paints. The foam control agents contain zero volatile organic constituents. The foam control agents comprise: (a) a vegetable oil; (b) a hydrophobic material; and (c) a silicone compound. The invention also relates to latex paints formulated with such foam control agents.
Claims4
A foam control agent having no volatile organic compounds comprising:
- (a) soybean oil,
- (b) a hydrophobic wax having an average particle size of from about 5 to 75 microns, and a surface energy of from about 20 to about 30 dynes/cm.sup.2, and
- (c) a polydimethylsiloxane, a substituted polydimethyl-siloxane, or mixtures thereof,
- wherein the weight ratio of soybean oil to hydrophobic wax to polydimethylsiloxane is about 85:5:0.5 to 90:10:2, said weight ratio being based upon the total weight of the foam control agent.
1 more element
Dependencies are inferred from the claim text.