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1. 发明授权

US3933653A Membranes of acrylonitrile polymers for ultrafilter and method for producing the same 失效
标题翻译：用于超滤的丙烯腈聚合物的膜及其制造方法
公开(公告)号：US3933653A
公开(公告)日：1976-01-20
申请号：US354786
申请日：1973-04-26
申请人： Yasuo Hashino , Masatsugu Yoshino , Hitoshi Sawabu , Sukeo Kawashima
发明人： Yasuo Hashino , Masatsugu Yoshino , Hitoshi Sawabu , Sukeo Kawashima
IPC分类号： B01D71/40 , B01D71/42 , C08L33/20 , C25B13/04 , B01D31/00 , B01D13/00
CPC分类号： B01D71/42 , B01D67/0011 , B01D69/10
摘要： Membranes of acrylonitrile polymers having water-permeability greater than 0.2 ml/cm.sup.2.min.atm and useful as an inexpensive superior ultrafilter, comprising (1) a porous layer or layers existing near and on the surfaces of said membranes, the average sizes of pores contained in said porous layer or layers and existing on each of assumptive parallel planes to the surfaces of said membranes, having such a gradient that said average sizes become smaller toward the surfaces of said membranes, and (2) a reticulate porous layer adjacent to said porous layer or layers (1) and containing therein a succession of voids of cylindrical shape or revolving ellipsoid shape having diameters of 5 - 50.mu. and lengths of at least 10.mu., are prepared by dissolving an acrylonitrile polymer in an aqueous solution of nitric acid of 65 - 95% by weight concentration, casting the resulting solution on a support followed by coagulation in a coagulation bath, or extruding the resulting solution from a slit into a coagulation bath, the coagulation bath being water alone or a nitric acid aqueous solution of 30% by weight or less.

2. 发明授权

US4181694A Method for producing hollow fibers of acrylonitrile polymers for ultrafilter 失效
标题翻译：用于超滤器的丙烯腈聚合物中空纤维的制造方法
公开(公告)号：US4181694A
公开(公告)日：1980-01-01
申请号：US538253
申请日：1975-01-03
申请人： Yasuo Hashino , Masatsugu Yoshino , Hitoshi Sawabu , Tsugio Konno
发明人： Yasuo Hashino , Masatsugu Yoshino , Hitoshi Sawabu , Tsugio Konno
IPC分类号： B01D71/42 , D01D5/24 , B01D31/00 , B29D27/00
CPC分类号： B01D71/42 , B01D61/18 , B01D63/021 , D01D5/24 , Y10T428/2975
摘要： Hollow fibers of acrylonitrile polymers having water-permeability greater than 0.2 ml/cm.sup.2.min.atm and useful as an inexpensive superior ultrafilter, comprising(1) a porous layer or layers existing on the outer or/and inner sides of said hollow fibers, the average sizes of pores contained in said porous layer or layers and existing on each of assumptive cylindrical surfaces concentric with the central axis of said hollow fibers, having such a gradient that the average sizes of pores contained in the porous layer existing on the outer side become smaller toward the outer surface of said hollow fibers while the average sizes of pores contained in the porous layer existing on the inner side become smaller toward the inner surface of said hollow fibers, and(2) a reticulate porous layer adjacent to said porous layer or layers (1) and containing therein at least one succession of voids having diameters of at least 10-50 .mu., are prepared by dissolving an acrylonitrile polymer in an aqueous solution of nitric acid of 65-95% by weight concentration and extruding the resulting spinning solution through a die for hollow fibers, into a coagulation bath containing water or an aqueous solution of nitric acid of 30% by weight or less concentration.
摘要翻译：具有大于0.2ml / cm2.min.atm的透水性的丙烯腈聚合物的中空纤维并且可用作廉价的超级超滤器，其包括（1）存在于所述中空纤维的外侧或内侧的多孔层，包含在所述多孔层中并且存在于与所述中空纤维的中心轴同心的每个假想圆柱形表面上的孔的平均尺寸具有这样的梯度，使得存在于外侧的多孔层中包含的孔的平均尺寸朝向所述中空纤维的外表面变小，而存在于内侧的多孔层中包含的孔的平均尺寸朝向所述中空纤维的内表面变小，和（2）与所述多孔层相邻的网状多孔层或层（1）并且在其中容纳至少一个具有至少10-50μm直径的空隙的连续孔，通过将丙烯腈聚合物溶解在水 65-95重量％浓度的硝酸溶液，并将得到的纺丝溶液通过中空纤维用模头挤出到含有30重量％以下浓度的水或硝酸水溶液的凝固浴中。

3. 发明授权

US4822489A Aromatic polysulfone type resin hollow fiber membrane and a process for producing the same 失效
标题翻译：芳香族聚砜型树脂中空纤维膜及其制造方法
公开(公告)号：US4822489A
公开(公告)日：1989-04-18
申请号：US491340
申请日：1983-04-20
申请人： Takashi Nohmi , Yasuo Hashino
发明人： Takashi Nohmi , Yasuo Hashino
IPC分类号： B01D71/68 , C08L81/06 , D01D5/24 , D01F6/02 , D01F6/28 , B01D13/00
CPC分类号： D01D5/24 , B01D67/0016 , B01D69/02 , B01D69/082 , B01D71/68
摘要： An aromatic polysulfone type resin hollow fiber membrane having a thickness of 100 to 600 .mu.m and a five-layer structure of an outer surface layer, an outer void layer, an intermediate layer, an inner void layer and an inner surface layer and wherein the inner and outer void layers are present in a thickness ratio of the inner void layer to the outer void layer of 1.5 to 0.6, the intermediate layer has a thickness of 5 to 70 .mu.m, and each of the outer and inner surface layers has an extremely small thickness. The hollow fiber membrane of the kind is excellent in heat resistance, acid resistance, alkali resistance, chemicals resistance and has an improved mechanical strength as well as a high water permeability. The hollow fiber membrane with such excellent properties can be obtained by a process which comprises extruding into an air space a spinning solution of an aromatic polysulfone type resin in an organic polar solvent for said resin, said solution containing a glycol and having a resin concentration of from 15 to 35% by weight, from an annular spinning nozzle to obtain an extrudate in the form of a hollow fiber, allowing the thus obtained extrudate to run in the air space while simultaneously injecting an internal coagulating liquid into the annular spinning nozzle at an inside bore thereof, and subsequently introducing said extrudate into a coagulating liquid bath.
摘要翻译： PCT No.PCT / JP82 / 00329 Sec。 371日期：1983年4月20日 102（e）日期1983年4月20日PCT提交1982年8月23日PCT公布。出版物WO83 / 00705 日本1983年3月3日。具有厚度为100〜600μm的芳香族聚砜型树脂中空纤维膜和外表层的5层结构，外部空隙层，中间层，内部空隙层和内表面层，其中所述内部空隙层和所述外部空隙层的厚度与所述外部空隙层的厚度比为1.5〜0.6，所述中间层的厚度为5〜70μm，外表面层和内表面层具有非常小的厚度。这种中空纤维膜的耐热性，耐酸性，耐碱性，耐化学性优异，机械强度提高，透水性高。具有这样优异性能的中空纤维膜可以通过以下方法获得：包括将空气中的芳族聚砜型树脂的纺丝溶液在所述树脂的有机极性溶剂中挤出，所述溶液含有二醇并且树脂浓度为 15至35重量％，从环形纺丝喷嘴获得中空纤维形式的挤出物，使得所得挤出物在空气空间中运行，同时将内部凝结液注入环形纺丝喷嘴中其内孔，然后将所述挤出物引入凝固液浴中。

4. 发明授权

US4208508A Semipermeable membranes of polyaryl ether sulfones 失效
标题翻译：聚芳醚砜的半透膜
公开(公告)号：US4208508A
公开(公告)日：1980-06-17
申请号：US922772
申请日：1978-07-07
申请人： Yasuo Hashino , Fusakazu Hayano , Kenji Ito
发明人： Yasuo Hashino , Fusakazu Hayano , Kenji Ito
IPC分类号： C08J9/28 , B01D71/68 , C08G75/23 , C08J3/09 , C08L81/06 , B01D13/00 , B01D13/04
CPC分类号： B01D71/68 , B01D67/0011 , B01D69/08 , C08J3/091 , C08J2381/06
摘要： A semipermeable membrane of a polyaryl ether sulfone having repeating units of the formula, ##STR1## wherein Ar.sup.1 and Ar.sup.2 independently represent ##STR2## wherein X, Y and Z independently represents an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a chlorine atom or a bromine atom; and l, m and n independently represent zero or an integer of 1 to 4, andhaving a contact angle of its surface to water of at most 65.degree..
摘要翻译：具有下式重复单元的聚芳基醚砜的半透膜：其中Ar1和Ar2独立地表示“其中X，Y和Z独立地表示具有1至4个碳原子的烷基，具有1个至4个碳原子，氯原子或溴原子; l，m和n独立地表示0或1〜4的整数，并且其表面与水的接触角至多为65°。

5. 发明授权

US4267053A Inline intravenous final filter unit 失效
标题翻译：直列静脉终点过滤器
公开(公告)号：US4267053A
公开(公告)日：1981-05-12
申请号：US50444
申请日：1979-06-20
申请人： Yasuo Hashino , Fusakazu Hayano , Kazuo Toyomoto
发明人： Yasuo Hashino , Fusakazu Hayano , Kazuo Toyomoto
IPC分类号： B01D35/28 , A61M5/165 , A61M5/32 , B01D35/00 , B01D61/18 , B01D63/06 , B01D29/32 , B01D31/00
CPC分类号： B01D63/06 , A61M5/165 , B01D35/00 , B01D61/18 , A61M2005/1655
摘要： An inline intravenous final filter unit especially of the bacteria-retentive type and adapted to be incorporated in administering sets for administering infusion solutions to patients. The filter unit comprises a casing having an inlet cap at its one end and an outlet cap at the other end thereof, at least one porous hollow fiber arranged within the casing in parallel to the longitudinal direction thereof and having a porosity rating of 0.1 to 5.mu., the hollow fiber being closed at its one end opposed to the inlet cap and open at the other end thereof opposed to the outlet cap, the hollow fiber further being tightly fixed at the outer peripheral portion of its open end to the inner wall of the casing by a securing member, and the ratio of the total effective filtration area of the hollow fiber to the capacity of the casing being at least about 4:1.
摘要翻译：特别是细菌保持型的直列静脉终止过滤器单元，并适于并入用于给患者输注输液的给药组。过滤器单元包括：壳体，其一端具有入口盖，在另一端具有出口盖，至少一个多孔中空纤维平行于其长度方向布置在壳体内，孔隙率为0.1至5 mu，中空纤维在与入口盖相对的一端处封闭，在与出口盖相对的另一端开口，中空纤维进一步紧密地固定在其开口端的外周部分的内壁壳体由固定构件构成，中空纤维的总有效过滤面积与壳体的容量之比至少约为4:1。

6. 再颁专利

USRE29980E Method of obtaining urokinase 失效
标题翻译：获得尿激酶的方法
公开(公告)号：USRE29980E
公开(公告)日：1979-05-01
申请号：US856057
申请日：1977-11-30
申请人： Tsutomu Abe , Yasuo Hashino , Hidehiko Kobayashi
发明人： Tsutomu Abe , Yasuo Hashino , Hidehiko Kobayashi
IPC分类号： C12N9/72
CPC分类号： C12N9/6462 , C12Y304/21073
摘要： A method of obtaining urokinase directly from human urine comprising contacting human urine with an acrylonitrile polymer of a unique porous structure formed at the time of polymerization for formation of the polymer and having a porosity of not less than 10% and a specific surface area of .Iadd.not less than .Iaddend.5 m.sup.2 /g. and subsequently eluting the urokinase adsorbed on the polymer. The acrylonitrile polymer employed in the method of the present invention has an excellent adsorption activity to urokinase and therefore, with use of an extremely small amount of the adsorbent, the satisfactory results can be obtained. Moreover, the porous polymer of the present method can also be utilized for purification of low purity crude urokinase obtained by the prior art methods.

7. 发明授权

US4061821A Semipermeable composite membranes 失效
标题翻译：半透膜复合膜
公开(公告)号：US4061821A
公开(公告)日：1977-12-06
申请号：US750544
申请日：1976-12-14
申请人： Fusakazu Hayano , Yasuo Hashino , Kiyoshi Ichikawa
发明人： Fusakazu Hayano , Yasuo Hashino , Kiyoshi Ichikawa
IPC分类号： B01D20060101 , B01D69/10 , B01D69/12 , C08J20060101 , C25B13/04 , B01D31/00
CPC分类号： B01D69/10 , B01D69/08 , Y10T428/2925 , Y10T428/2975
摘要： A semipermeable composite membrane which shows only a small reduction of water permeability even when it is subjected to one time hot water treatment or drying treatment is provided according to the method of the present invention. Said semipermeable composite membrane consists of a porous substance and a reinforcing material embedded therein. Said porous substance has a porous region of network structure at least in one part thereof and numbers of voids in said porous region. Said reinforcing material is a fabric in case of flat type membrane or a braid having a central hollow portion in case of hollow fiber type membrane which is embedded in the wall of the membrane. Said method comprises impregnating said reinforcing material with a polymer solution and treating the impregnated reinforcing material with a coagulating liquid.
摘要翻译：根据本发明的方法，提供了即使进行一次热水处理或干燥处理也显示出透水性的小的降低的半透膜复合膜。所述半透膜复合膜由多孔物质和嵌入其中的增强材料组成。所述多孔物质至少在其一部分中具有网状结构的多孔区域和所述多孔区域中的空隙数。所述增强材料是平面型膜的织物或在嵌入膜的壁中的中空纤维型膜的情况下具有中心中空部分的编织物。所述方法包括用聚合物溶液浸渍所述增强材料并用凝固液处理浸渍的增强材料。

8. 发明授权

US4002567A Ultrafiltration apparatus 失效
标题翻译：超滤装置
公开(公告)号：US4002567A
公开(公告)日：1977-01-11
申请号：US561913
申请日：1975-03-25
申请人： Tsugio Konno , Kohichi Matsumoto , Shinichi Ohkubo , Yasuo Hashino , Kaoru Maeda , Giichi Sayanagi
发明人： Tsugio Konno , Kohichi Matsumoto , Shinichi Ohkubo , Yasuo Hashino , Kaoru Maeda , Giichi Sayanagi
IPC分类号： C02F1/44 , B01D61/14 , B01D61/20 , B01D61/22 , B01D63/02 , B01D65/02 , B01D65/08 , C08J3/02 , B01D31/00
CPC分类号： B01D63/024 , B01D61/145 , B01D61/18 , B01D63/02 , B01D2313/44 , B01D2319/04
摘要： An ultrafiltration apparatus comprising a module in which a number of hollow fibers having semipermeable walls, disposed in approximately parallel and collected orderly to form a bundle and fixed with a cast-molding material at at least one end portion thereof, are used as semipermeable membrane, a back washing means and a control means for controlling said module and said back washing means, is presented. Said apparatus can be used for a long time without accompanying reduction of filtration capacity.
摘要翻译：一种超滤装置，其特征在于，其中使用多个具有半透壁的中空纤维，其大致平行并且有序地收集以形成束并在其至少一个端部用铸塑材料固定的模块作为半透膜，提出了一种背洗装置和用于控制所述模块和所述背洗装置的控制装置。所述设备可以长时间使用，而不伴随过滤能力的降低。

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