| abstract |
Polyurethane comprising a reaction product of the following reaction components: A) one or more isocyanates, wherein the isocyanate diisocyanate and / or polyisocyanate comprises; B) one or more polyols; C) one or more catalysts; and D) 0.05 to 5 wt .-% of polybutadiene, based on 100 wt .-% of A), B), C) and D); wherein the polybutadiene comprises a 1,2-butene structural unit, 2,3- (cis) -buteno-structural unit and 2,3- (trans) -buteno-structural unit, wherein, based on 100% by weight of polybutadiene, the amount of the 1,2-butene structural unit is less than 30% by weight, the amount of the 2,3- (trans) -buteno moiety is more than the amount of the 2,3- (cis) -buteno moiety, and the amount of the 2,3- (trans) -buteno moiety is 40 to 50 wt .-% is. |