Polyurethane latexes, processes for their preparation and polymers prepared therewith.

A process for preparing a polyurethane latex stable comprising admixing a polyurethane prepolymer with water, a surfactant and an extender chain under conditions sufficient to disperse the reaction product of the prepolymer and the chain extender to form a latex, in that: (i) the prepolymer is prepared from a prepolymer formulation including a polyisocyanate component and polyol component, (ii) from 5 to 40 weight percent of the polyol component is ethylene oxide in oxide ethylene applied as endcapping on a polyoxyalkylene polyol of propylene oxide or higher oxyalkylene, and (iii) no more than 45 percent of the weight of component poliolesoxido ethylene.