| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyol composition having high reactivity and low viscosity, and to provide a method for producing rigid polyurethane foam using the composition.SOLUTION: The polyol composition comprises at least two kinds of compounds selected from the group composed of hydroxyalkylated dietheylene triamines (A) each independently having a methyl group or a substituent expressed by formula (3), and one or more kinds of compounds selected from the group composed of hydroxyalkylated ethylene diamines (B) having a substituent expressed by formula (3). In formula (3), Rto Reach independently represents a hydrogen atom or a methyl group; n represents an integer of 1 to 3; and m represents an integer of 0 to 2. |
