Method of preparing laminated foam articles

Claim 1

THE PROCESS OF FORMING A THREE-DIMENSIONAL LAMINATED ARTICLE OF COMPLEX CONFIGURATION COMPRISING MIXING TOGETHER UNDER PRESSURE POLYURETHANE-FORMING REACTANTS AND A LOW BOILING LIQUID BLOWING AGENT, DEPOSITING THE REACTION MIXTURE ONTO A SURFACE OF A FABRIC AT A LOWER PRESSURE, THE REDUCTION IN PRESSURE CAUSING THE VOLATILE LIQUID BLOWING AGENT TO VAPORIZE THEREBY CAUSING A PARTIAL EXPANSION OF THE FORMED POLYURETHANE, SAID PARTIALLY EXPANDED POLYURETHANE PENETRATING INTO THE SURFACE OF SAID FABRIC AND EMBEDDING THE FIBERS OF SAID FABRIC THEREIN, PLACING SAID FABRIC AND SAID PARTIALLY EXPANDED POLYURETHANE IN A FULLY ENCLOSED PRESSURE MOLD WHICH IS OF THE CONFIGURATION TO BE IMPARTED TO THE SAID LAMINATED ARTICLE AND MAINTAINING SAID FABRIC AND SAID POLYURETHANE WITHIN SAID MOLD WHILE SIMULTANEOUSLY FURTHER EXPANDING SAID POLYURETHANE UNTIL THE POLYURETHANE FORAM IS FULLY EXPANDED AND CROSSLINKING OF THE REACTIVE COMPONENTS OF THE POLYURETHANE-FORMING REACTANTS IS COMPLETED WHEREBY THE POLYURETHANE FOAM LAMINATE ASSUMES THE SHAPE AND CONFIGURATION OF THE MOLD AND IS PERMANENTLY SET IN THE DESIRED CONFIGURATION OF THE LAMINATE.