发明名称 |
Method for controlling surface concentration of a polymer additive |
摘要 |
The surface free energy of a polymer blend where a base polymer contains an additive having a different surface free energy than that of the base polymer can be controlled over a wide range of additive surface concentrations by appropriate choice of the mold surface free energy during fabrication. A high surface concentration of additive relative to a low bulk concentration can be achieved, leading to improved biocompatibility without loss of optical clarity.
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申请公布号 |
US5962563(A) |
申请公布日期 |
1999.10.05 |
申请号 |
US19960748163 |
申请日期 |
1996.11.12 |
申请人 |
COBE CARDIOVASCULAR OPERATING CO., INC. |
发明人 |
FORRESTAL, LLOYD;VOORHEES, MARC |
分类号 |
B29C33/38;B29C67/24;C08J5/00;(IPC1-7):C08J5/54 |
主分类号 |
B29C33/38 |
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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