Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Reexamination Certificate
2007-08-28
2007-08-28
Sample, David R. (Department: 1755)
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
C106S403000, C106S416000, C106S417000, C106S419000, C106S436000, C106S447000, C106S448000, C106S450000, C106S460000, C106S465000, C106S469000, C106S471000, C106S487000
Reexamination Certificate
active
10996718
ABSTRACT:
In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine and (ii) a polyprotic acid, wherein the mole ratio of the amine, alcohol, and/or alkanol amine to the polyprotic acid is greater than 3:1. In various embodiments, the pigments have improved stability, hiding power, tint strength, and/or gloss.
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Bell David E.
Bowen Karen L.
El-Shoubary Modasser
Hopkins Robert M.
King & Spalding LLP
Matthews Abraham M.
Millennium Inorganic Chemicals, Inc.
Sample David R.
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