| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyurethane resin which includes, in high concentration, a biological raw material that is a renewable natural resource with less environmental loads.SOLUTION: A polyol component (Z) for production of polyurethane resin includes, as essential components, a biological polyol (a) having a number average molecular weight of 250-3,000 and cellulose (b), in which the rate of biological components in the total weight being 50 wt.% or more. The polyurethane resin (C) is obtained by reacting the polyol (Z) with a polyisocyanate component (B), in which the rate of the biological components is 25% or more. A polyurethane resin molded product is composed of the polyurethane resin (C). |
