Rheological additive for coating compositions
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United States of America Patent
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Jul 23, 1991
Issued Date -
N/A
app pub date -
Jun 18, 1990
filing date -
Aug 26, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rheological additive for non-aqueous coating compositions is disclosed. The additive may be the reaction product of an alkoxylated aliphatic nitrogen-containing compound, an aliphatic diamine or mixtures thereof, and an organic polycarboxylic anhydride or acid, an alkanediol polyepoxide ether, or mixtures thereof. The additive provides excellent anti-sag and storage stability properties, particularly for high solids coating compositions, without causing a significant increase in viscosity. Also disclosed are coating compositions containing the additive.
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