METHOD TO IMPROVE THE COLOR ACCEPTANCE OF VISCOSITY STABILIZED LATEX PAINTS
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United States of America Patent
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Issued Date -
Apr 2, 2009
app pub date -
Oct 1, 2008
filing date -
Oct 1, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method to improve the color acceptance of color viscosity stabilized latex paints. The system includes a base paint, 0.05 wt % to 5 wt % of a color viscosity stabilizing compound; a colorant compound, and; a sufficient amount of a hydrophobically modified alkali swellable emulsion (“HASE”) thickener to improve the color acceptance properties of the paint, which amount is typically 0.02 wt % to 0.5 wt % of the paint, and optionally, 0.1 wt % to 5 wt % of a condensation polymer associative thickener including polyether polyurethanes, polyether polyols, polyether polyacetals, and polyether aminoplasts. The system demonstrates improved color acceptance as measured by rub-ups and ΔE values.
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