发明名称 |
BIODEGRADABLE MULTI-LAYER FILM |
摘要 |
<p>A co-extruded multilayer film comprises a modified thermoplastic starch blend layer containing above 1-10 wt.% water; and a layer of a biodegradable polyester, the layer (A) being free of polyhydroxyalkanoate copolymers consisting of >=2 specified repeat units. A co-extruded multilayer film comprises a modified thermoplastic starch blend layer containing above 1-10 wt.% water; and a layer of a biodegradable polyester, the layer (A) being free of polyhydroxyalkanoate copolymers consisting of >=2 repeat units of formula (I) and of formula (I) and/or (III). [Image] R 1>H or 1 or 2C alkyl; R 2> = 3-19 alkyl or alkenyl; n : 1 or 2; and m : 2-9. An independent claim is also claimed for production of the multilayer film by co-extrusion with the layers having similar melt and viscosity properties and layer (A) containing 1-10 wt.% water.</p> |
申请公布号 |
PT1581388(E) |
申请公布日期 |
2012.06.18 |
申请号 |
PT20030812564T |
申请日期 |
2003.12.09 |
申请人 |
BIOP BIOPOLYMER TECHNOLOGIES AG |
发明人 |
WERNER BERGER;FRITS PIETER EDUARD ANTON DE JONG |
分类号 |
B32B27/06;B29C47/06;B29C55/02;B29C55/16;B32B9/02;B32B27/36;B65D65/46;C08J5/18;C08L3/02;C08L67/02 |
主分类号 |
B32B27/06 |
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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