| abstract |
(57) Abstract: A seat cushion pad having a high damping property capable of lowering the vibration transmissibility around 6 Hz to the same level as or less than the conventional one while reducing the resonance magnification at 2 to 4 Hz. provide. Kind Code: A1 A seat cushion pad comprising a polyurethane foam having a skin layer and a core layer, wherein the polyurethane foam raw material comprises 30 to 80 parts of a polyether polyol as a polyol component, and a polymer polyol 7 0 to 20 parts, a silicone foam stabilizer 0.1 to 2 parts, a foaming agent and a polyisocyanate compound as constituent raw materials, wherein the silicone foam stabilizer is (a) a polydimethylsiloxane foam stabilizer; At least one selected from block ether group-containing siloxane foam stabilizers is used in an amount of 10% by weight or more based on the total amount of the silicone foam stabilizer. |