Waterborne two component polyurethane coating compositions comprising alicyclic rigid polyols
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United States of America Patent
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Jun 14, 2016
Grant Date -
Jun 19, 2014
app pub date -
Dec 16, 2013
filing date -
Dec 19, 2012
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Abstract
The present invention provides two-component polyurethane compositions that are substantially free of VOCs and comprising, as one component, polyisocyanate compositions and, as a second component, a polyol which is chosen from a cycloaliphatic diol or polyol having a molecular weight of from 100 to 500 and containing one or more 4 to 7 member aliphatic ring and an oligomeric diol or polyol comprising the condensation reaction product of from 30 wt. % to 78 wt. %, based on the total weight of reactants used to make the oligomer, and an acrylic or vinyl emulsion polymer.
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