METHOD OF MOLDING OF POLYURETHANE FOAM INVOLVING USE OF A FAN-LIKE SPRAY NOZZLE

摘要

Method of producing polyurethane foam by distributing a liquid polyurethane reaction mixture containing an organic polyisocyanate reactive hydrogen containing polymeric material and a blowing agent under pressure of 0.5 to 200 pounds per square inch above atmospheric pressure and distributing the polyurethane reaction mixture in a fan-like planular pattern across at least part of the mold cavity while moving the mold and pouring head relative to each other.