COMPOSITE FOR SKIN-POROUS POLYURETHANE FOAM

摘要

The porous surface polyurethane foam is composed of 100 wt% polyols with viscosity 400-3000 cps, mixed with polyether polyol or grafted polymer polyol with molecular weight 2500-6000 and solid polymer below 60 wt% containing monomer with vinyl group, polyether polyol with molecular weight 2500-5500, isocyanate, catalysts, and water. The temp. of hot cure mold for polyurethane foam is about 55-70 deg.C.