| abstract |
The present invention relates to a method for producing a polyurethane, wherein (a) polyisocyanate, (b) polymer polyol, wherein the carrier polyol was obtained starting from at least trifunctional starter molecules, (c) possibly blowing agents, (d) at least one compound having only one group that is reactive toward isocyanates, (e) possibly higher molecular weight compounds having groups that are reactive toward isocyanate groups, which were obtained starting from at least difunctional starter molecules, (f) possibly chain extenders, cross-linking agents, or mixture thereof, (g) possibly catalysts, and (h) possibly other additives are mixed to form a reaction mixture and the reaction mixture is allowed to react to form polyurethane, wherein the proportion of chain extenders is less than 6 wt % relative to the total weight of the components a) to h), the content of solid particles from the polymer polyol is greater than 7 wt % relative to the total weight of the components a) to h), and the average functionality of the components (b), (d), (e), and (f) with respect to isocyanate groups is less than 2.5. The present invention further relates to a polyurethane that can be obtained according to such a method, to a molded body containing a foamed polyurethane according to the invention, and to the use of a molded body according to the invention as a shoe sole. |