A method for producing a polyurethane resin which comprises reacting: (A) a compound having an active hydrogen-containing group, containing: (A1) a compound having one spiro ring and active hydrogen-containing groups at both ends; and (A2) an aliphatic polycarbonate polyol; (B) a polyisocyanate; and (C) a chain-extending agent. Also disclosed are a resin composition comprising the polyurethane resin and a sheet-form article comprising the polyurethane resin or the resin composition.
一种生产聚
氨酯
树脂的方法,包括使以下物质发生反应:(A)具有活性含氢基团的化合物,其中包含:(A1)具有一个螺环且两端具有活性含氢基团的化合物;(A2)脂肪族聚
碳酸酯多元醇;(B)多
异氰酸酯;以及(C)扩链剂。还公开了一种包含聚
氨酯
树脂的
树脂组合物和一种包含聚
氨酯
树脂或
树脂组合物的片状制品。