公开(公告)号：USRE32277E

公开(公告)日：1986-11-04

申请号：US696877

申请日：1985-01-31

申请人： Masami Tsuge ,  Shinichi Uematsu ,  Yotsuo Ono ,  Shokichi Eiga ,  Minoru Makita

发明人： Masami Tsuge ,  Shinichi Uematsu ,  Yotsuo Ono ,  Shokichi Eiga ,  Minoru Makita

IPC分类号： A61M1/16 ,  B01D71/10 ,  D01D5/24 ,  D01F2/04

CPC分类号： B01D71/12 ,  B01D69/02 ,  B01D69/081 ,  B01D69/082 ,  B01D69/087 ,  D01D5/24 ,  D01F2/04

摘要： An improved dialyzing hollow fiber of cuprammonium regenerated cellulose, showing a substantially similar network structure of fine gap passage routes having a max. gap size of 200 A when .[.seen.]. .Iadd.observed .Iaddend.at .[.its.]. any cross-section and .[.logitudinal.]. .Iadd.longitudinal .Iaddend.section, having skinless structure at its inside and outside surface of the hollow fiber and representing a superior water permeability.

公开(公告)号：US4705632A

公开(公告)日：1987-11-10

申请号：US843819

申请日：1986-03-28

申请人： Koji Yagita ,  Yotsuo Ono

发明人： Koji Yagita ,  Yotsuo Ono

IPC分类号： A61M1/18 ,  B01D69/08 ,  B01D71/80 ,  D01D5/24 ,  B01D13/01

CPC分类号： B01D69/08 ,  B01D71/80 ,  D01D5/24

摘要： A hollow fiber membrane for the dialysis of blood is formed by melt-spinning a block copolymer which has a reduced viscosity of 1.5 to 4.0 and is comprised of 30 to 60% by weight of an aromatic polyester having a water absorption up to 1% by weight and 40 to 70% by weight of polyoxyethylene or its derivative having a number average molecular weight of 3000 to 20000.

摘要翻译： 通过将具有1.5至4.0的比浓粘度的嵌段共聚物熔融纺丝而形成中空纤维膜，所述嵌段共聚物由30至60重量％的吸水率高达1％的芳族聚酯组成，所述芳族聚酯的吸水率高达1％ 重量和40〜70重量％的数均分子量为3000〜20000的聚氧乙烯或其衍生物。

公开(公告)号：US4535028A

公开(公告)日：1985-08-13

申请号：US427296

申请日：1982-09-29

申请人： Masanobu Yokogi ,  Yoshifumi Sugimoto ,  Yotsuo Ono

发明人： Masanobu Yokogi ,  Yoshifumi Sugimoto ,  Yotsuo Ono

IPC分类号： D01F2/04 ,  A61M1/18 ,  B01D39/18 ,  B01D71/06 ,  D01D5/16 ,  D01D5/24 ,  D01F1/08 ,  D02G3/00 ,  B01D39/00

CPC分类号： B01D69/08 ,  B01D69/02 ,  B01D69/082 ,  B01D69/087 ,  B01D71/12 ,  D01D5/24 ,  Y10T428/2913 ,  Y10T428/2975

摘要： 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.

摘要翻译： 一种铜铵再生纤维素的中空纤维，其具有贯穿纤维长度延伸的轴向设置的圆柱形孔，所述孔充满气体。 与常规中空纤维相比，中空纤维具有改善的透析性能和超滤速率。 这样的中空纤维可以通过以下方法制造：（a）通过环形孔挤出纺丝原液，同时在形成孔时同时将气体注入孔中，和（b）使纤维挤出物自由落入空气中 并且在所述自由下落期间获得的向下的力量仅在凝固浴的表面下方深度为2至20mm。