copolymeres prestabilisants grafts and stabilizers, preparation, process for obtaining polymer polyol dispersions and process for obtaining it polyurethanne foams.

摘要

pru00e9stabilisants copolymers including the product of the in situ reaction of unsaturated monomers containing a mixture of at least one u00e9thylu00e9niquement monounsaturated monomer free of duties alcoxylabthe unsaturated monomer and a pru00e9polyol alcoxylable function, a low molecular weight and a polymerization catalyst.as an agent of alcoxylation said reaction product selected from the group comprising ethylene oxide, propylene oxide, and mixtures thereof.process for the production of polymu00e8respolyols dispersions and process for the production of polyurethane foams.