| abstract |
(57) [Summary] [Purpose] To provide a polyether polyurethane having excellent discoloration resistance and transparency. A polyurethane obtained by the reaction of a polyol component, an organic diisocyanate component and a chain extender, wherein the polyol component comprises polyether diol and 15 to 60% of polyether modified polycarbonate diol based on the weight of the polyol component. Polyurethane. |