| abstract |
The present invention provides a composite material having a layer structure of a metal of 2 mm to 20 mm, a dense polyurethane formulation of 10 mm to 100 mm and another metal of 2 mm to 20 mm, and a use thereof and a corresponding method for manufacturing the same, , Wherein the polyurethane formulation can be obtained by reacting (a) a compound having two or more isocyanate groups with (b) a polyether polyol, and the polyether polyol (b) is at least a polyether polyol (b1) and a polyether polyol (b2). It is a mixture containing the components of ). |