| 摘要 |
PROBLEM TO BE SOLVED: To provide a raw material compounding composition for manufacturing a hard polyurethane foam having high storage stability.SOLUTION: The raw material compounding composition for manufacturing the hard polyurethane foam contains polyester polyol, water and an amine compound expressed by general formula (1) is used, [wherein each of R-Rindependently expresses methyl group or ethyl group; and n express an integer of 8-18]. |
