发明名称 |
FIBROUS SHEETS COATED OR IMPREGNATED WITH BIODEGRADABLE POLYMERS OR POLYMERS BLENDS |
摘要 |
Fibrous sheets are coated or impregnated with a biodegradable composition to render the sheets more resistant to penetration by liquids. Biodegradable polymer blends suitable for use in coating or impregnating a fibrous sheet can be manufactured from at least one "hard" biodegradable polymer and at least one "soft" biodegradable polymer. "Hard" biopolymers typically have a glass transition temperature of at least about 10°C. "Soft" biodegradable polymers typically have a glass transition temperature less than about 0°C. Another useful biodegradable polymer composition includes one or more biodegradable polymers and sufficient inorganic filler so as to render the treated sheet microwaveable. The biodegradable polymer compositions are especially well-suited for coating or impregnating paper sheets, e.g., 12-15 lb/3000 ft<SUP>2 </SUP>tissue paper to yield food wraps. Food wraps will typically be manufactured to have good "dead-fold" properties so as to remain in a wrapped position and not spring back to an "unwrapped" form. |
申请公布号 |
WO2004106630(A3) |
申请公布日期 |
2006.04.06 |
申请号 |
WO2004IB02164 |
申请日期 |
2004.06.02 |
申请人 |
BIOTEC BIOLOGISCHE NATURVERPACKUNGEN GMBH & CO. KG |
发明人 |
HODSON, SIMON, K. |
分类号 |
B32B27/04;B32B27/10;B32B27/12;B32B37/04;D21H19/14 |
主分类号 |
B32B27/04 |
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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