Pigment dispersions for solventborne coatings with improved rheology
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United States of America Patent
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Oct 30, 2007
Grant Date -
Jun 24, 2004
app pub date -
Dec 16, 2002
filing date -
Dec 16, 2002
priority date (Note) -
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Abstract
A pigment dispersion with improved rheology useful for forming solventborne paint compositions is disclosed. The dispersion comprises a copolymer pigment dispersant having at least one quaternary ammonium functional group; a pigment having a pH below 7.0; and an organic liquid carrier. The dispersion is particularly useful for forming colored exterior finishes for automobiles and trucks.
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