Rick L. Tabor - Gurnee IL Douglas R. Moore - Clute TX James J. Jakubowski - Midland TX Wayne R. Willkomm - Erie CO Ruben Solis - Richwood TX
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C08J 300
US Classification:
524591, 524807, 524839, 524840
Abstract:
Disclosed are stable aqueous polyurethane latexes prepared from prepolymer formulations including a polyisocyanate component and polyol component, wherein from 5 to 40 percent of the weight of the polyol component is ethylene oxide in the form of ethylene oxide applied as an end cap onto a propylene oxide or higher oxyalkylene polyoxyalkylene polyol, and no more than 45 percent of the weight of polyol component is ethylene oxide. These latexes are prepared without the use of organic solvents.