发明申请
US20050182196A1 Biodegradable polymer blends for use in making films, sheets and other articles of manufacture
有权
可生物降解的聚合物共混物,用于制造薄膜,片材和其他制品
- 专利标题: Biodegradable polymer blends for use in making films, sheets and other articles of manufacture
- 专利标题(中): 可生物降解的聚合物共混物,用于制造薄膜,片材和其他制品
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申请号: US11103999申请日: 2005-04-12
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公开(公告)号: US20050182196A1公开(公告)日: 2005-08-18
- 发明人: Kishan Khemani , Harald Schmidt , Simon Hodson
- 申请人: Kishan Khemani , Harald Schmidt , Simon Hodson
- 申请人地址: DE Emmerich
- 专利权人: biotec Biologische Naturverpackungen Gmb
- 当前专利权人: biotec Biologische Naturverpackungen Gmb
- 当前专利权人地址: DE Emmerich
- 主分类号: C08L3/02
- IPC分类号: C08L3/02 ; C08L67/02 ; C08L67/03 ; C08L67/04 ; C08L77/12 ; C08F8/30
摘要:
Biodegradable polymer blends suitable for laminate coatings, wraps and other packaging materials are manufactured from a blend of suitable biodegradable polymers, such as at least one “hard” biopolymer and at least one “soft” biopolymer. “Hard” biopolymers tend to be more brittle and rigid and typically have a glass transition temperature greater than about 10° C. “Soft” biopolymers tend to be more flexible and pliable and typically have a glass transition temperature less than about 0° C. While hard and soft polymers each possess certain intrinsic benefits, certain blends of hard and soft polymers have been discovered which possess synergistic properties superior to those of either hard or soft polymers by themselves. Biodegradable polymers include polyesters, polyesteramides, polyesterurethanes, thermoplastic starch, and other natural polymers. The polymer blends may optionally include an inorganic filler. Films and sheets made from the polymer blends may be textured so as to increase the bulk hand feel. 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.
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