RADIATION-CURABLE POLYURETHANE DISPERSIONS
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United States of America Patent
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Issued Date -
May 1, 2014
app pub date -
Aug 12, 2013
filing date -
Oct 30, 2012
priority date (Note) -
Abandoned
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Abstract
Curable aqueous polyurethane polymer dispersions are described. The dispersion comprises a polyurethane copolymer having pendant (meth)acrylate groups and pendant carboxylic groups along the main chain and a tertiary aminofunctional unsaturated monomer that has reacted in an acid/base reaction with the carboxylic acid groups on the main chain. The dispersion can be applied to the surface of a substrate and cured using ultra-violet or electron-beam radiation to form a cured polyurethane having desired properties that does not emit volatile amine compounds.
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