ELECTROSTERICALLY STABILIZED AQUEOUS POLYURETHANE RESINS, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF

摘要

Disclosed are electrosterically stabilized polyurethane resins which have an improved characteristics profile and are obtained by producing a hydrophilic and solvent-free macromonomer (A) (ii) having a monomodal molecular mass distribution from an alkylpolyalkylene glycol or arylpolyalkylene glycol (A) (i) and a polyisocyanate component (B) (i) and then reacting said preliminary additive compound with an isocyanate-reactive compound (C). The macromonomer (A) (ii) is used in a multi-step succession of reactions for producing the dispersed polyurethane. The inventive dispersed polyurethanes are used as binding agents, preferably in mineral binding agents.