| abstract |
The present invention relates to a process for producing a polyurethane elastomer, especially a microcellular polyurethane elastomer, at least comprising the reaction of at least one isocyanate composition (ZI) and a composition (Z1) to give a prepolymer containing isocyanate groups, and the reaction of the resulting prepolymer with at least one composition (Z2) comprising at least one polyol; the composition (Z1) comprises at least one chain extender (KV-1) selected from the group consisting of compounds having two isocyanate-reactive functional groups, with a molecular weight in the range from 50 to 500 g/mol. The present invention further relates to a polyurethane elastomer obtainable or obtained according to a process of the invention and to the use of a polyurethane elastomer of the invention or of a polyurethane elastomer obtainable or obtained according to a process of the invention for producing a shaped article, especially a damping element, shock absorber or stop buffer. |