| 摘要 |
PURPOSE:To obtain a laminated resin foamed, body in which at least two foamed resin layers having different characteristics are integrally joined, by integral foam processing by a method wherein a foam processing mold, on the wall of which a weir plate is protrusively provided, is used so that resin foaming liquid to produce soft foamed body is poured in a space on one side of the dam plate and resin foaming liquid to produce hard foamed body is poured in a space on the other side of the weir plate so as to expand and harden both the resin foams. CONSTITUTION:In a mold 1, a weir plate 4 is protrusively provided so as to extend from the corner of the mold in order to partition some portion of a mold space by the weir plate 4 into spaces A and B. Under the state that the mold 1 is held in an inclined posture, resin foaming liquid 5 to produce soft foam and resin foaming liquid 6 to produce hard foam are respectively poured in the spaces A and B so as to expand and fill the mold space in order to foam and harden both the foaming liquids 5 and 6. Both the foaming liquids 5 and 6 start to foam and expand along the weir plate 4 and, after expanding beyond the top of the weir plate 4, are joined into an integral body in the form that soft layer 8 and hard layer 9 press against each other with the processing of expansion so as to form a laminated resin foamed body 7, which consists of both soft and hard layers and has a small gap. |
