发明授权
- 专利标题： Method for controlling surface concentration of a polymer additive
- 专利标题（中）： 控制聚合物添加剂表面浓度的方法
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申请号： US748163申请日： 1996-11-12
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公开(公告)号： US5962563A公开(公告)日： 1999-10-05
- 发明人: Lloyd Forrestal , Marc Voorhees
- 申请人： Lloyd Forrestal , Marc Voorhees
- 申请人地址： CO Arvada
- 专利权人： COBE Cardiovascular Operating Co., Inc.
- 当前专利权人： COBE Cardiovascular Operating Co., Inc.
- 当前专利权人地址： CO Arvada
- 主分类号： B29C33/38
- IPC分类号： B29C33/38 ; B29C67/24 ; C08J5/00 ; C08J5/54
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.
公开/授权文献
- USD336888S Helicopter 公开/授权日：1993-06-29
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