| abstract |
PROBLEM TO BE SOLVED: To provide a molded flexible polyurethane foam exhibiting high vibration damping, low resilience and high durability. An isocyanate, and at least about 40% by weight is based on a double metal cyanide (DMC) catalyst, has a primary hydroxyl content of at least about 65%, and an unsaturation of less than about 0.020 meq / g. A reaction product of a polyol component substantially comprising one or more oxypropylene / oxyethylene copolymers having a damping frequency of less than about 6 Hz, and a resonance of less than about 4.0 A / A 0 Polyurethane foam with transmittance. [Selection figure] None |