发明名称 |
MICROPOROUS POLYMERIC FOAMS AND MICROTEXTURED SURFACES |
摘要 |
<p>Highly uniform microporous foam suitable for medical applications and methods for preparing these foams. The highly uniform microporous foams are of controlled pore size that may be utilized in a variety of applications. In preparing the foams, an organic crystalline polymer is melted and combined with a selected solid crystalline fugitive compound to produce a substantially isotropic solution. The solution is cooled under controlled conditions, which foster solid-solid phase separation by the simultaneous crystallization of the fugitive compound and the polymer, to produce a foam precursor containing the solidified fugitive compound dispersed through a matrix of the organic polymer. Crystals of fugitive compound are then removed by solvent extraction and/or sublimation, or like process to produce microcellular foams having a continuous, open-cell structure.</p> |
申请公布号 |
EP0713364(A1) |
申请公布日期 |
1996.05.29 |
申请号 |
EP19940925867 |
申请日期 |
1994.08.11 |
申请人 |
SHALABY, SHALABY W.;ROWETON, SUSAN L. |
发明人 |
SHALABY, SHALABY W.;ROWETON, SUSAN L. |
分类号 |
A61K9/12;A61L27/16;A61L27/18;A61L27/38;A61L27/56;B01D67/00;B01D69/14;B29C67/20;C08J9/26;(IPC1-7):A01N63/00;A61K9/14;B29D7/01 |
主分类号 |
A61K9/12 |
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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