Polyurethaneurea elastomer

摘要

A polyurethaneurea elastomer obtained by reacting a polyisocyanate component obtained by reacting 1,5-naphthalene diisocyanate with a polyol, with an amine component consisting essentially of an amine compound of the formula (1): wherein R is a bivalent polyalkylene polyether or polyalkylene polyester having an average molecular weight of at least 200, which may contain unsaturated bonds in the polyalkylene.