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BIODEGRADABLE POLYESTER DRAWN FILM AND A MANUFACTURING METHOD THEREOF CAPABLE OF ENHANCING BIODEGRADATION STRENGTH, ELONGATION WHILE KEEPING THE HIGH TRANSPARENCY
BIODEGRADABLE POLYESTER DRAWN FILM AND A MANUFACTURING METHOD THEREOF CAPABLE OF ENHANCING BIODEGRADATION STRENGTH, ELONGATION WHILE KEEPING THE HIGH TRANSPARENCY
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机译:可生物降解的聚酯薄膜薄膜及其制造方法,可在保持高透明度的同时增强生物降解强度,延长使用寿命
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摘要
PURPOSE: A biodegradable polyester drawn film and a manufacturing method thereof are provided to maximize flexibility, enhance transparency, and prevent bleed out, thereby being useful as various packages.;CONSTITUTION: A biodegradable polyester drawn film is produced by random copolymerization of average molecular weight 500-10,000 of polycaprolactone and/or carprolactone monomer and lactide. A method for manufacturing the biodegradable polyester drawn film comprises the following steps: obtaining a copolymer resin by random copolymerization of the poIycaprolactone and/or the carprolactone monomer and the lactide; obtaining an undrawn sheet by melting and extruding the copolymer resin; and stretching the undrawn sheet vertically or horizontally and heat setting the drawn sheet.;COPYRIGHT KIPO 2012
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