Composition for Polyurethane Foam, Polyurethane Foam Obtained From the Composition, and Use Thereof

The polyurethane foam composition of the present invention comprises a polyol, a catalyst, a surfactant, a foaming agent and a polyisocyanate, wherein the polyol contains, at least, (A) a polyol that is produced by using a raw material obtained from plant-derived oil, contains more than three side chains per molecule, each side chain comprising a hydrocarbon chain having 4 or more carbon atoms, and has an average number of functional groups of 1.5 to 4.5 and a hydroxyl value of 80 to 140 mgKOH/g. The polyurethane foam of the present invention is produced by foaming the above polyurethane foam composition. The polyurethane foam contributes to reducing environmental burdens, and has excellent low rebound property, particularly a characteristic that the increase in hardness at low temperatures is suppressed.