| 摘要 |
PROBLEM TO BE SOLVED: To obtain a biodegradable composition consisting essentially of a starch holding prescribed mechanical properties or above, a composition prepared by compounding the starch improved in molding processability with a biodegradable resin and a foam uniform in a foamed state, having a high strength and comprising the biodegradable composition consisting essentially of the starch or a composition obtained by compounding the starch with the biodegradable resin. SOLUTION: This composition comprises the starch, a plasticizer for the starch and an acrylic resin modifier or the composition comprises the starch, the plasticizer for the starch, acrylic resin modifier and biodegradable resin and the amount of the acrylic resin modifier is 0.01-5 pts.wt. based on 100 pts.wt. of the starch or the starch and the biodegradable resin and the amount of the plasticizer for the starch is 10-50 pts.wt. based on 100 pts.wt. of the starch or the starch and the biodegradable resin. The molded product comprises the foam such as a bulk cushioning material, a foamed sheet or a mold foam composed of the composition molded by injection molding, extrusion, blow molding or film formation.
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