发明名称 |
Porous shaped article of regenerated cellulose adapted for medical use |
摘要 |
A porous shaped article adapted for medicinal use is disclosed which comprises a porous regenerated cellulose the entire surface of which is covered with a coating comprising a hydrophilizingly effective amount of at least one wetting agent and a substantially water insoluble chemically modified cellulose ether which is crosslinked carboxymethylcellulose or a reaction product of a partially etherified cellulose and a chemical modifying agent which is capable of reacting with the free hydroxy groups of the etherified cellulose. The articles are coated by first impregnating same with a cellulose ether solution and then treating the impregnated article with a solution of the modifying agent. The wetting agent may be added to either of these steps. The coated articles retain a high absorption capacity for liquids, yet do not release any substantial amounts of turbidifying impurities into a surrounding liquid and therefore are especially suited for medical uses.
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申请公布号 |
US4198968(A) |
申请公布日期 |
1980.04.22 |
申请号 |
US19780878455 |
申请日期 |
1978.02.16 |
申请人 |
HOECHST AG |
发明人 |
FAUTH, HEINRICH;KALBERER, HEINZ |
分类号 |
A61L15/28;A61L15/42;(IPC1-7):A61B17/11 |
主分类号 |
A61L15/28 |
代理机构 |
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主权项 |
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地址 |
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