To provide a seat cushion pad having high damping ability which lowers the resonance magnification at 2-4 HZ and also decreases the transmissibility of vibration at around 6 HZ to the same as or lower than the conventional level.
The seat cushion pad, having a monolayered upholstery part, comprises a polyurethane foam having a skin layer and a core layer prepared by injecting a polyurethane foaming material into a mold and molding this. The polyurethane foaming material comprises a polyol component consisting of 30-80 pts.wt. polyether polyol having hydroxy value of 20-40 mgKOH/g and an ethylene oxide unit at the terminal, and 70-20 pts.wt. polymer polyol having hyroxy value of 15-30 mgKOH/g; a silicone foam stabilizer which yields free expanded foam having a height of ≥225 mm; a foaming agent and a polyisocyanate compound with TDI:MDI=70:30-90-10 by weight.
| JPS6010450 | [Title of the device] Bedding material of four-layer structure |
| JP4584403 | mat |
| WO/2012/131331 | MATTRESSES |
SAKANO MASANOBU
SUGIE TAKANORI
SATO KATSUYA
SEKIDA KIKUO
