PRODUCTION OF MOLDED FLEXIBLE POLYURETHANE FOAM

摘要

PURPOSE:To reduce the variation in hardness and wt. of the title foam in producing it using water as the blowing agent without using any chlorofluorocarbon blowing agent by changing the amts, of a raw material mixture injected into a mold an a polyol component according to a change in the room temp. CONSTITUTION:The foam is produced by injecting a raw material mixture into a mold in an amt. (P) satisfying the relation: P={WX(1.00 to 1.27)/(100-GL)}mu100 (wherein W is a foam wt. obtd. by subtracting the wt. of auxiliary materials from the wt. of a product; and GL is a gas loss) and by adjusting the amt. of a polyol component in the range of 90-100-100% according to a change in the room temp.