Aqueous polyurethane dispersions containing phenolic resin moieties
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 26, 2002
Grant Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Jan 21, 2000
priority date (Note) -
Expired
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Abstract
A water-dispersible polyurethane resin is disclosed. The resin comprises recurring units of an alkoxylated phenolic resin, a carboxylate-containing diol, and a multifunctional isocyanate. The resin, which can be neutralized, and/or chain-extended, is dispersed in water to form a polyurethane dispersion. Coatings derived from the polyurethane dispersions have excellent acid and chemical resistance.
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