ROSS INLINE ROTOR STATOR MIXER HELPS DUPONT DEVELOP NEW GENERATION NON-OZONE DEPLETING BLOWING AGENTS FOR POLYURETHANE FOAM
Polyurethane foams are a widely used class of foamed polymers. Uses for polyurethane foams include: Insulation, Automotive interior, Cushioning, Footwear and Structural foam applications. The basic polyurethane chemistry consists of the reaction of a polyisocyanate with an organic polyhydroxy compound. Polyurethane foams are produced by incorporating foaming or blowing agents into the polyol component prior to reacting the polyol with the isocyanate. It is necessary to form a stable polyol/blowing agent emulsion to provide a homogeneous feed to the polyurethane foam machine. The simple propeller agitator can no longer provide the mixing energy necessary to create these polyol/HFC emulsions. The Inline Rotor Stator Mixer, Model ME 401, has been incorporated into the DuPont pilot system.