BIODEGRADABLE SHEET AND PROCESS FOR PRODUCING THE SAME, BIODEGRADABLE MOLDED ARTICLE COMPRISING THE SHEET, AND PROCESS FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a biodegradable molded article which has excellent biodegradability and has good in formability and mechanical strength, and has excellent in air permeability and water retentivity, and to provide an economical process for easily producing the article.

SOLUTION: The biodegradable molded article is characterized in that it contains≥70% by weight of a starchy substance and in that it is obtained by melting a starch resin mainly comprising an olefin resin at a temperature of 120-180°C, forming the starch resin into a sheetlike shape with a cooled roller and rolling up the resultant sheet in a roll cooled to≤60°C. Preferably, the olefin resin contains polyethylene or polypropylene.

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