use of at least one polyol, composition for forming the polyurethane polymer matrix of a hydrolysis-resistant flexible cellular material, process for manufacturing a cellular material by extrusion of a composition, and hydrolysis-resistant cellular material

摘要

USE OF AT LEAST ONE POLYOL, COMPOSITION FOR FORMING THE POLYURETHANE POLYMER MATRIX OF A FLEXIBLE CELLULAR MATERIAL RESISTANT, A MANUFACTURE OF A CELLULAR MATERIAL FOR EXTRUSION MUSIC AND CELLULAR MATERIAL. Use of at least one polyol (O) chosen from polyesters and chain grafted polyether polyols of at least one between polystyrene, polyacrylonitrile and styrene and acrylonitrile copolymers as entering the formulation of the polyol constituent or constituent polyol polyamine of a polyurethane forming the polymer matrix of a hydrolysis-resistant flexible cellular material, said or said polyols (P) representing at least a part of said polyol constituent or at least a part of the polyol fraction of said constituent polyol polyamine.