发明名称 |
POLYMER SURFACES FOR BLOOD-CONTACTING SURFACES OF A BIOMEDICAL DEVICE AND METHODS FOR FORMING THE SAME |
摘要 |
<p>A polymer mixture is formed from at least 95 volume % of a base polymer and less than 5 volume % of a polymer additive including at least first and second different chains in graft or block copolymer form. The first chains are characterized by a low critical surface tension but have a tendency to exude from the mixture while the second ones lower this tendency. This polymer mixture is formed into the exposed blood- contacting surface of a biochemical devlce. A preferred additive is a block copolymer of (a) polydialkyl siloxanes and (b) a polyurethane, with the base polymer being a polyurethane.</p> |
申请公布号 |
IL62183(D0) |
申请公布日期 |
1981.03.31 |
申请号 |
IL19810062183 |
申请日期 |
1981.02.20 |
申请人 |
THORATEC LABORATORIES CORP |
发明人 |
|
分类号 |
A61L33/00;A61L27/00;A61L29/00;A61L31/00;A61L33/06;C08G18/10;C08G18/61;C08G77/455;C08G77/458;C08G77/46;C08L75/04;C08L83/12 |
主分类号 |
A61L33/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|