发明名称 |
POLYSILOXANE-CONTAINING POLYURETHANE ELASTOMERIC COMPOSITIONS |
摘要 |
The present invention relates to a material having improved mechanical properties, clarity, processability and/or degradation resistance comprising a polyurethane elastomeric composition which includes a soft segment derived from at least one polysiloxane macrodiol and at least one polyether and/or polycarbonate macrodiol. This material can function as a degradation resistant material or biomaterial and is particularly useful in the manufacture of medical devices, articles or implants which contact living tissues or bodily fluids. The present invention also provides a polyurethane elastomeric composition which include s a soft segment derived from about 60 to about 98 wt.% of at least one polysiloxane macrodiol and about 2 to about 40 wt.% of at least one polyether and/or polycarbonate macrodiol and processes for its preparation. |
申请公布号 |
CA2267276(C) |
申请公布日期 |
2005.11.08 |
申请号 |
CA19972267276 |
申请日期 |
1997.09.19 |
申请人 |
CARDIAC CRC NOMINEES PTY LTD. |
发明人 |
MEIJS, GORDON FRANCIS;GUNATILLAKE, PATHIRAJA ARACHCHILLAGE;MCCARTHY, SIMON JOHN |
分类号 |
A61L27/00;A61L15/26;A61L27/18;A61L29/00;A61L29/06;A61L31/00;A61L31/06;C08G18/44;C08G18/48;C08G18/61;C08G18/65 |
主分类号 |
A61L27/00 |
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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