发明名称 |
Biodegradable polymer compositions and shrink films |
摘要 |
The present invention provides polylactic compositions effecting an excellent mold releasability upon processing and significantly improved elongation at break and impact strength without affecting the transparency. Also provided is a shrink film which decomposes under the natural environment and has excellent transparency, flexibility, shrinkability and mold releasability upon processing by applying the polylactic acid composition to a shrink film. There is provided a biodegradable polymer composition comprising 100 parts by weight of polylactic acid and 5 to 70 parts by weight of EVA. Further, a biodegradable polymer composition is provided comprising the polymer composition with one or more additives selected from the group consisting of 0.05 to 5 parts by weight of a lubricant, 1 to 50 parts by weight of plasticizer, 0.5 to 5 parts by weight of thermal stabilizer and 0.05 to 5 parts by weight of mold releasing agent. These biodegradable polymer compositions are applied to shrink films.
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申请公布号 |
US5726220(A) |
申请公布日期 |
1998.03.10 |
申请号 |
US19960703994 |
申请日期 |
1996.08.28 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
TOKUSHIGE, YUJI;NAKAMURA, NORIO;TANIFUJI, YOICHI;UEDA, SHUHEI |
分类号 |
C08K5/00;C08L67/04;(IPC1-7):C08K5/09;C08L23/08;C08L83/08 |
主分类号 |
C08K5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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