发明名称 |
Biodegradable polymeric compositions and products thereof |
摘要 |
The present invention relates to polymeric compositions that are biodegradable and that can be melt processed into various forms, including films, fibers, and nonwovens. The compositions include compatible or semicompatible blends of biodegradable polymers and have physical and thermomechanical integrity. Films formed from preferred polymeric compositions are suitable for use as backsheets in disposable absorbent articles. In a preferred embodiment, the polymeric composition includes a polyhydroxyalkanoate and at least one other biodegradable polymer selected from aliphatic polyester-based polyurethanes, a polylactide, polycaprolactone, or a mixture of two or more of these polymers. Where the second polymer is polycaprolactone, the composition preferably also includes a third polymer for enhancing the melt processability of the composition.
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申请公布号 |
US5939467(A) |
申请公布日期 |
1999.08.17 |
申请号 |
US19940308066 |
申请日期 |
1994.09.16 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
WNUK, ANDREW JULIAN;MELIK, DAVID HARRY;YOUNG, TERRILL ALAN |
分类号 |
A61F13/15;A61F13/49;A61F13/514;A61F13/551;A61L15/62;C08J5/18;C08L1/00;C08L3/00;C08L29/04;C08L67/00;C08L67/02;C08L67/03;C08L67/04;C08L73/00;C08L75/00;C08L75/04;C08L75/06;C08L101/00;C08L101/12;C08L101/16;(IPC1-7):C08L67/04 |
主分类号 |
A61F13/15 |
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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