Waterborne UV-crosslinkable thiol-ene polyurethane dispersions
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United States of America Patent
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Issued Date -
Jan 25, 2007
app pub date -
Jun 30, 2006
filing date -
Jul 1, 2005
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Abandoned
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Abstract
A method for a waterborne photopolymerizable thiol-ene polyurethane dispersion including water, low molecular weight polyurethane prepolymer with terminal unsaturation and pendant acid groups, and a polyfunctional thiol. The dispersion can also include a neutralizing agent. After application of the dispersion to a surface, the water is evaporated and visible light or UV radiation is applied to form a crosslinked network film.
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