PROCESS FOR FORMING POLYURETHANE FOAM USING MECHANICAL COOLING AND AN ADDITIVE

摘要

Conventional polyurethane slabstock foam having a substantially open cell structure from a polyfunctional polyol of 400 to 1500 equivalent weight, water, isocyanate, polyurethane catalysts and a foam processing aid which are combined and then mechanically cooled. Enhanced compression set performance for polyurethanes, eliminates a key problem of prior water blown, low density, soft polyurethane foam formulations using mechanically cooling methods.