| 摘要 |
Foam forming techniques capable of permitting foaming of biodegradable resin to be positively and uniformly accomplished to provide a biodegradable resin foam (B) with satisfactory quality. The biodegradable resin foam is made of biodegradable resin consisting of a main biodegradable resin ingredient of 100 DEG C or more in melting point and a low-melting biodegradable resin ingredient of 100 DEG C or less in melting point. The biodegradable resin foam is produced by placing a starting material consisting of at least biodegradable resin and a substantial amount of moisture in a heated and pressurized environment, releasing the starting material from the environment to foam the biodegradable resin, and subjecting the foamed resin to forming by means of a forming mold (A). An apparatus for producing the foamed biodegradable resin foam includes a pressure adjusting chamber (5), an air-permeable forming mold (A), a pressure reducing tank (T1) and an injection machine (S). <IMAGE> |
