PROCESS FOR EXTENDING POLYURETHANE BINDERS WITH WATER
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United States of America Patent
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Issued Date -
Jan 26, 2012
app pub date -
Jul 25, 2011
filing date -
Jul 23, 2010
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Abandoned
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Abstract
This disclosure provides a process to produce a moisture-curable polyurethane binder composition comprising: providing a first mixture comprising an isocyanate-containing species and a polyol component, wherein the polyol component is a polyfunctional polyol and the isocyanate-containing species is a difunctional or polyfunctional isocyanate and wherein the isocyanate-containing species and the polyfunctional polyol are reacted to form an isocyanate-functionalized species; adding a non-ionic surfactant to the first mixture; and adding water to the first mixture to form an emulsion, wherein the moisture-curable polyurethane binder composition contains about 3% to about 25% residual isocyanate functionality.
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