SOFT POLYURETHANE FOAM, PROCESS FOR PRODUCING THE SAME AND AUTOMOBILE SEAT

摘要

A soft polyurethane foam excelling in vibration characteristics and deflection performance under load; a process for stably producing the same at low cost; and an automobile seat that excels in postural retention capability and support feeling, reducing a feeling of bottom touch. In the reaction of a polyoxyalkylene polyol with a polyisocyanate compound in the presence of a urethanization catalyst, a foaming agent and a foam regulator, use is made of a given amount of compound of the formula: (1) wherein n on the average is in the range of 13 to 2100.