| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyol composition for manufacturing a low repulsion flexible polyurethane foam small in change of foam hardness even at low temperature, i.e. low in temperature dependency of foam hardness.SOLUTION: There is provided a polyol composition for manufacturing a flexible polyurethane foam (B) containing polyester triol (A) and satisfying following (1) to (6). (1) The content of (A) based on weight of the (B) is 15 to 30 wt.%. (2) The ester group concentration of (B) is 0.1 to 5.0 mmol/g. (3) A hydroxyl value of (B) is 80 to 150 mgKOH/g. (4) The content of an oxyethylene group unit of (B) is 3 to 10 wt.%. (5) The number average functional group number of (B) is 3.1 to 4.0. (6) A primary hydroxyl group ratio of (B) is 3 to 15%. |
