发明名称 |
POLYMER BLENDS WITH IMPROVED RHEOLOGY AND IMPROVED UNNOTCHED IMPACT STRENGTH |
摘要 |
This invention relates to a blend of biodegradable polymers comprising: (A) about 15% to about 60% by weight of at least one flexible biodegradable polymer (A) having a glass transition less than about 0<°>C, (B) about 85% to about 40% by weight of at least one rigid biodegradable polymer (B) having a glass transition greater than about 10<°>C; said percentages being based on the total weight of the polymer blend; wherein said polymer blend has a unnotched Izod impact strength according to ASTM D256 of at least 9 ft-lbs/in at 23°C. In one embodiment, the polymer blend has a unnotched Izod impact strength according to ASTM D256 at least 20 ft-lbs/in at 23°C. |
申请公布号 |
EP1697462(A1) |
申请公布日期 |
2006.09.06 |
申请号 |
EP20040814907 |
申请日期 |
2004.12.17 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
HALE, WESLEY, RAYMOND;TANNER, CANDACE, MICHELE |
分类号 |
C08L67/00;C08L67/02;C08L67/04 |
主分类号 |
C08L67/00 |
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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