发明名称 |
Cold-water flushable compositions comprising polylactic acid dispersed in polyvinyl alcohol |
摘要 |
Selectively cold-water responsive compositions constructed of combinations of polymers including at least one hydrolytically degradable polymer and at least one cold-water soluble polymer are provided. Additionally, methods of making and using selectively cold-water sensitive compositions are described. In one embodiment, the method comprises combining a polylactide and a cold-water soluble polyvinyl alcohol at a temperature above the melting point of the polymer having the higher melting point, and below the decomposition point of the polymer having the lower decomposition point, to form a homogeneous polymer blend is also provided. The cold-water responsive properties of the compositions of the present invention may be varied include water dispersible, water disintegratable, and water weakenable.
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申请公布号 |
US6664333(B2) |
申请公布日期 |
2003.12.16 |
申请号 |
US19990259429 |
申请日期 |
1999.03.01 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC. |
发明人 |
WANG JAMES HONGXUE;SCHERTZ DAVID MICHAEL |
分类号 |
A61L15/22;A61L15/62;C08L29/04;C08L67/04;(IPC1-7):C08L29/04 |
主分类号 |
A61L15/22 |
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