| 摘要 |
A flexible polyurethane foam is obtained by mixing a raw material containing a hydroxyl compound, a polyisocyanate, a foaming agent, a foam stabilizer, and catalyst, and foaming the mixture. The flexible polyurethane foam has a molar ratio of urea bond relative to urethane bond of 7 or less and more than 0.2, and the hydroxyl compound contains 100 parts by weight of polyether polyol and 0.5-20 parts by weight of a low-molecular weight hydroxyl compound having a molecular weight lower than that of the polyether polyol.
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