| abstract |
[PROBLEMS] To use a polyol derived from a castor oil, which is a vegetable oil, as a method for producing a flexible polyurethane foam, and to have excellent physical properties such as hysteresis loss rate without highly controlling the total unsaturation degree of the polyol used in combination. A method is provided for obtaining a polyurethane foam. A polyol composition comprising a specific polyol (A) and a specific polyol (B), each of which uses castor oil or hydrogenated castor oil as an initiator in the presence of a urethanization catalyst, a foaming agent, and a foam stabilizer. A process for producing a flexible polyurethane foam, comprising reacting P) with a polyisocyanate compound (I). [Selection figure] None |