POLYURETHANE FOAM MOLDING, METHOD OF PRODUCING THE SAME, AND SEAT PAD FOR MOTOR VEHICLE

摘要

Two or more kinds of liquid urethane materials that can form polyurethane foam with different properties or characteristics are poured in a mold and foamed under a predetermined forming pressure (P) and thus a polyurethane molding having two or more molding portions with different properties or characteristics is molded in one piece. In the one-piece molding, pouring amounts of the liquid urethane materials are determined so that the predetermined forming pressure (P) is obtained at each forming portion.