| 摘要 |
PROBLEM TO BE SOLVED: To form a foamed molded product capable of being recycled to its raw material and having a soft feeling almost same to that of a urethane foamed molded product and a free shape within a mold by using a thermoplastic resin as a raw material. SOLUTION: A mixture of a thermoplastic resin powder 3, a lipophilic liquid substance 4 capable of being absorbed by the thermoplastic resin powder 3 and a foaming agent is injected into a mold and heated and foamed to form the foam filling the mold. The foaming agent is foamed by heating and the thermoplastic resin powder absorbs the lipophilic substance to swell and the mutual bonding of the adjacent particles of the thermoplastic resin powder is generated. Since fluidizing, foaming and the absorption of the lipophilic liquid substance by the thermoplastic resin powder are generated almost at the same time, a homogenous foamed molded product is formed. |
