发明名称 |
HOLLOW FIBER OF CUPRAMMONIUM REGENERATED CELLULOSE AND PROCESS FOR PRODUCING THE SAME |
摘要 |
<p>A hollow fiber of cuprammonium regenerated cellulose having an axially disposed cylindrical bore extending throughout the fiber length, said bore being filled with a gas. The hollow fiber exhibits an improved dialysis performance and ultrafiltration rate over the conventional hollow fiber. Such a hollow fiber can be produced by a process comprising (a) extruding a spinning dope through an annular orifice while simultaneously injecting a gas into the bore as it is formed, and (b) allowing the fiber extrudate to free fall in an air space and dive into a depth of from 2 to 20 mm below the surface of a coagulation bath only with a downward force gained during said free fall.</p> |
申请公布号 |
CA1176013(A) |
申请公布日期 |
1984.10.16 |
申请号 |
CA19820412540 |
申请日期 |
1982.09.30 |
申请人 |
ASAHI KASEI KOGYO KABUSHIKI KAISHA;ASAHI MEDICAL CO., LTD. |
发明人 |
YOKOGI, MASANOBU;SUGIMOTO, YOSHIFUMI;ONO, YOTSUO |
分类号 |
D01F2/04;A61M1/18;B01D39/18;B01D71/06;D01D5/16;D01D5/24;D01F1/08;(IPC1-7):C08J9/28 |
主分类号 |
D01F2/04 |
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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