MOLDED FORM COMPOSED OF FOAMED SUBSTANCE BOARD AND MANUFACTURE THEREOF

摘要

PURPOSE: To simply and inexpensively obtain a molded product excellent in sound insulating and impact absorbing properties by mixing foam plastic granules and a filler with a liquid raw material for foam plastic and filling a block mold with the resulting mixture to cut the mixture into a mixed plastic plate and heating this plate before deforming the same under pressure. CONSTITUTION: For example, soft foam waste with a grain size of 2-20 mm generated from a grinding mechanism 39 or hard foam waste 18 with a grain size of 2-20 mm generated from a grinding mechanism 40 and a filler 17 such as cork granules, rubber granaules, chalk or calcium carbonate taken out of storage containers 41, 42 are arranged in a different amt. ratio to be charged in a mixing drum 44 and an arbitrary polyol and an isocyanate are sent into the mixing drum 44 to be mixed with the waste and the filler perfectly and this mixed raw material is charged in a block mold 50. The sealed foam plastic block 54 is cut into individual mixed plastic plates 2 and each plate 2 is heated to 120-250 deg.C to be pushed in a press mold to deform the mixed plastic plate 2, a coating layer 24 and a meltable adhesive foil 25.