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公开(公告)号：US20100230843A1
公开(公告)日：2010-09-16
申请号：US12789593
申请日：2010-05-28
CPC分类号： B01D63/081 , B01D67/0011 , B01D67/0013 , B01D67/0016 , B01D67/0027 , B01D69/02 , B01D69/06 , B01D71/68 , B01D2325/022 , B01D2325/023 , B01D2325/24 , B01D2325/36 , B01D2325/38
摘要： Method for producing this membrane from a casting solution comprising the hydrophobic first sulfone polymer and the hydrophilic second polymer in a solvent system, the method comprising the steps of pouring the casting solution, conditioned to a molding temperature, onto a carrier to form a film, which carrier has a temperature that is higher in comparison to the molding temperature, conveying the film through a climate-controlled zone, initiating the coagulation in a coagulation bath for the formation of a membrane structure, withdrawing the membrane structure from the carrier with a speed that is increased in comparison to the carrier speed, stabilizing, extracting, and subsequently drying the membrane.
摘要翻译： 在溶剂系统中由包含疏水性第一砜聚合物和亲水性第二聚合物的流延溶液制备该膜的方法，该方法包括以下步骤：将调节至模塑温度的浇铸溶液倒入载体上以形成膜， 该载体的温度与成型温度相比较高，将膜输送通过气候控制区，在用于形成膜结构的凝固浴中引发凝结，以速度从载体中取出膜结构 其与载体速度相比增加，稳定，提取和随后干燥膜。
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公开(公告)号：US08727136B2
公开(公告)日：2014-05-20
申请号：US12789593
申请日：2010-05-28
CPC分类号： B01D63/081 , B01D67/0011 , B01D67/0013 , B01D67/0016 , B01D67/0027 , B01D69/02 , B01D69/06 , B01D71/68 , B01D2325/022 , B01D2325/023 , B01D2325/24 , B01D2325/36 , B01D2325/38
摘要： Method for producing this membrane from a casting solution comprising the hydrophobic first sulfone polymer and the hydrophilic second polymer in a solvent system, the method comprising the steps of pouring the casting solution, conditioned to a molding temperature, onto a carrier to form a film, which carrier has a temperature that is higher in comparison to the molding temperature, conveying the film through a climate-controlled zone, initiating the coagulation in a coagulation bath for the formation of a membrane structure, withdrawing the membrane structure from the carrier with a speed that is increased in comparison to the carrier speed, stabilizing, extracting, and subsequently drying the membrane.
摘要翻译： 在溶剂系统中由包含疏水性第一砜聚合物和亲水性第二聚合物的流延溶液制备该膜的方法，该方法包括以下步骤：将调节至模塑温度的浇铸溶液倒入载体上以形成膜， 该载体的温度与成型温度相比较高，将膜输送通过气候控制区，在用于形成膜结构的凝固浴中引发凝结，以速度从载体中取出膜结构 其与载体速度相比增加，稳定，提取和随后干燥膜。
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公开(公告)号：US20080197072A1
公开(公告)日：2008-08-21
申请号：US11914768
申请日：2006-06-03
CPC分类号： B01D63/081 , B01D67/0011 , B01D67/0013 , B01D67/0016 , B01D67/0027 , B01D69/02 , B01D69/06 , B01D71/68 , B01D2325/022 , B01D2325/023 , B01D2325/24 , B01D2325/36 , B01D2325/38
摘要： Integrally asymmetric flat membrane for microfiltration comprising at least 40 wt. % of a hydrophobic first sulfone polymer and a hydrophilic second polymer with a pore size distribution over the membrane wall, having a separating layer in the wall's interior, and also having, in the direction from this separating layer, pore sizes increasing towards the surfaces, the second surface having pores with a mean diameter of at least 1 μm. The membrane comprises the hydrophilic second polymer in a concentration of 0.1-10 wt. %. The separating layer is located in an region facing the first surface, and the pore size passes through a maximum in the direction from the asymmetrical region towards the second surface.Method for producing this membrane from a casting solution comprising the hydrophobic first sulfone polymer and the hydrophilic second polymer in a solvent system, the method comprising the steps of pouring the casting solution, conditioned to a molding temperature, onto a carrier to form a film, which carrier has a temperature that is higher in comparison to the molding temperature, conveying the film through a climate-controlled zone, initiating the coagulation in a coagulation bath for the formation of a membrane structure, withdrawing the membrane structure from the carrier with a speed that is increased in comparison to the carrier speed, stabilizing, extracting, and subsequently drying the membrane.
摘要翻译： 用于微滤的整体非对称平膜包含至少40wt。 疏水性第一砜聚合物和孔分布在膜壁上的亲水性第二聚合物的％，在壁的内部具有分离层，并且在从该分离层的方向上还具有朝向表面增加的孔径， 第二表面具有平均直径至少为1um的孔。 该膜包含浓度为0.1-10重量％的亲水性第二聚合物。 ％。 分离层位于面向第一表面的区域中，并且孔径在从不对称区域朝向第二表面的方向上经过最大值。 在溶剂系统中由包含疏水性第一砜聚合物和亲水性第二聚合物的流延溶液制备该膜的方法，该方法包括以下步骤：将调节至模塑温度的浇铸溶液倒入载体上以形成膜， 该载体的温度与成型温度相比较高，将膜输送通过气候控制区，在用于形成膜结构的凝固浴中引发凝结，以速度从载体中取出膜结构 其与载体速度相比增加，稳定，提取和随后干燥膜。
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公开(公告)号：US08827086B2
公开(公告)日：2014-09-09
申请号：US12299631
申请日：2007-05-03
CPC分类号： B01D61/145 , B01D67/0011 , B01D67/0016 , B01D69/081 , B01D69/087 , B01D71/68 , B01D2325/02 , B01D2325/022 , B01D2325/026 , B01D2325/04 , B01D2325/20 , B01D2325/24 , B01D2325/36
摘要： The invention relates to a hollow-fiber membrane for ultrafiltration made from a hydrophobic aromatic sulfone polymer and at least one hydrophilic polymer, the membrane having an open-pore separating layer on the lumen side, an adjoining supporting layer with asymmetric, sponge-like pore structure without finger pores and an outer layer adjoining the supporting layer towards the outer surface. The separating layer has a cutoff between 20 000 and 200 000 daltons, a thickness of max. 10% of the membrane thickness and an essentially isotropic pore structure. The size of the pores in the supporting layer initially increases up to a zone with maximum pore size, and then decreases towards the outer layer, and the outer layer exhibits a thickness of 10 to 30% of the wall thickness and an essentially isotropic pore structure. The mean size of the pores in the outer layer is larger than in the separating layer, but smaller than in the supporting layer. The wall thickness of the hollow-fiber membrane lies in the range from 100 to 450 μm. The invention relates furthermore to a method for the production of these hollow-fiber membranes.
摘要翻译： 本发明涉及一种用于由疏水性芳香族砜聚合物和至少一种亲水性聚合物制成的超滤的中空纤维膜，所述膜在内腔侧具有开孔分离层，邻接的支撑层具有不对称的海绵状孔 没有手指孔的结构和与支撑层相邻的外层朝向外表面。 分离层的截留值在20 000至200 000道尔顿之间，厚度最大。 10％的膜厚度和基本上各向同性的孔结构。 支撑层中的孔的尺寸最初增加到具有最大孔径的区域，然后向外层减小，并且外层的厚度为壁厚的10至30％，并且基本上具有各向同性的孔结构 。 外层的孔的平均尺寸大于分离层中的孔的平均尺寸，但小于支撑层中的孔的平均尺寸。 中空纤维膜的壁厚在100〜450μm的范围内。 本发明还涉及生产这些中空纤维膜的方法。
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公开(公告)号：US20100224553A1
公开(公告)日：2010-09-09
申请号：US12299631
申请日：2007-05-03
CPC分类号： B01D61/145 , B01D67/0011 , B01D67/0016 , B01D69/081 , B01D69/087 , B01D71/68 , B01D2325/02 , B01D2325/022 , B01D2325/026 , B01D2325/04 , B01D2325/20 , B01D2325/24 , B01D2325/36
摘要： The invention relates to a hollow-fibre membrane for ultrafiltration made from a hydrophobic aromatic sulfone polymer and at least one hydrophilic polymer, the membrane having an open-pore separating layer on the lumen side, an adjoining supporting layer with asymmetric, sponge-like pore structure without finger pores and an outer layer adjoining the supporting layer towards the outer surface. The separating layer has a cutoff between 20 000 and 200 000 daltons, a thickness of max. 10% of the membrane thickness and an essentially isotropic pore structure. The size of the pores in the supporting layer initially increases up to a zone with maximum pore size, and then decreases towards the outer layer, and the outer layer exhibits a thickness of 10 to 30% of the wall thickness and an essentially isotropic pore structure. The mean size of the pores in the outer layer is larger than in the separating layer, but smaller than in the supporting layer. The wall thickness of the hollow-fibre membrane lies in the range from 100 to 450 μm. The invention relates furthermore to a method for the production of these hollow-fibre membranes.
摘要翻译： 本发明涉及一种用于由疏水性芳香族砜聚合物和至少一种亲水性聚合物制成的超滤的中空纤维膜，所述膜在内腔侧具有开孔分离层，邻接的支撑层具有不对称的海绵状孔 没有手指孔的结构和与支撑层相邻的外层朝向外表面。 分离层的截留值在20 000至200 000道尔顿之间，厚度最大。 10％的膜厚度和基本上各向同性的孔结构。 支撑层中的孔的尺寸最初增加到具有最大孔径的区域，然后向外层减小，并且外层的厚度为壁厚的10至30％，并且基本上具有各向同性的孔结构 。 外层的孔的平均尺寸大于分离层中的孔的平均尺寸，但小于支撑层中的孔的平均尺寸。 中空纤维膜的壁厚在100〜450μm的范围内。 本发明还涉及生产这些中空纤维膜的方法。
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公开(公告)号：US5387345A
公开(公告)日：1995-02-07
申请号：US63331
申请日：1993-05-19
IPC分类号： B01D61/24 , A61M1/18 , B01D63/02 , B01D69/02 , B01D69/08 , B01D71/12 , B01D71/16 , B01D71/18 , D01D5/24 , D01F2/28 , B01D11/00 , B01D33/21 , B01D39/00
摘要： A dialysis membrane in the form of a hollow fiber with a continuous internal cavity is made of cellulose acetate or a cellulose acetate derivative. The membrane has a maximum sieving coefficient of 0.04 for albumin with a molecular weight of 68,000. A dialysis membrane in the form of a hollow fiber with a continuous internal cavity may be made in a process using a spinning solution containing an organic carboxylic acid and a cavity-forming liquid. Modification agents and/or water are optionally added and the solution is extruded through a spinneret suitable for the manufacture of hollow fibers. The precipitation of the resultant dialysis membrane and the usual further aftertreatment take place in a precipitation bath. The organic carboxylic acid preferably is acetic acid and the precipitation bath preferably is a diluted acetic acid.
摘要翻译： 具有连续内腔的中空纤维形式的透析膜由乙酸纤维素或醋酸纤维素衍生物制成。 对于分子量为68,000的白蛋白，该膜的最大筛分系数为0.04。 具有连续内腔的中空纤维形式的透析膜可以在使用含有有机羧酸和空腔形成液体的纺丝溶液的方法中制备。 任选地加入改性剂和/或水，并通过适于制造中空纤维的喷丝头将溶液挤出。 所得透析膜的沉淀和通常的进一步后处理在沉淀浴中进行。 有机羧酸优选为乙酸，沉淀浴优选为稀释的乙酸。
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公开(公告)号：US5403485A
公开(公告)日：1995-04-04
申请号：US63321
申请日：1993-05-19
IPC分类号： B01D61/24 , A61M1/18 , B01D63/02 , B01D67/00 , B01D69/08 , B01D71/16 , D01D5/24 , D01F2/28 , B01D33/21
CPC分类号： B01D71/16 , B01D69/08 , D01D5/24 , D01F2/28 , Y10T428/2975
摘要： A dialysis membrane in the form of a hollow fiber with a continuous internal cavity is made of cellulose acetate or a cellulose acetate derivative. The hollow fiber is made by using a gas to form the internal hollow cavity. A dialysis membrane in the form of a hollow fiber with a continuous hollow cavity may be made in a process using a spinning solution containing an organic carboxylic acid. Modification agents can be added to the solution and the solution extruded through a spinneret suitable for manufacturing hollow fibers, while an internal medium is introduced simultaneously into the internal cavity of the forming hollow fiber. The precipitation of the dialysis membrane thus formed and an ordinary further aftertreatment take place subsequently in a precipitation bath. The hollow fiber is made by using a gas as the internal medium to form the internal cavity.
摘要翻译： 具有连续内腔的中空纤维形式的透析膜由乙酸纤维素或醋酸纤维素衍生物制成。 通过使用气体形成中空纤维以形成内部中空腔。 可以使用含有有机羧酸的纺丝溶液的方法制造具有连续中空腔的中空纤维形式的透析膜。 可以向溶液中加入改性剂，并将溶液通过适于制造中空纤维的喷丝头挤出，同时将内部介质同时引入成型中空纤维的内腔中。 这样形成的透析膜的沉淀和普通的进一步的后处理随后在沉淀浴中进行。 中空纤维通过使用气体作为内部介质来形成内部空腔。
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公开(公告)号：US5470474A
公开(公告)日：1995-11-28
申请号：US217631
申请日：1994-03-25
CPC分类号： B01D65/02 , B01D11/0203 , B08B7/0021 , B01D2321/168 , B01D2321/18 , B01D2323/225
摘要： The invention relates to a process for removing a lumen filler and/or undesired auxiliary processing agents from hollow fibers or hollow fiber membranes by extraction with supercritical gases. The invention likewise relates to the hollow fibers or hollow fiber membranes freed of a lumen filler and/or undesired auxiliary processing agents by this process.
摘要翻译： 本发明涉及通过用超临界气体萃取从中空纤维或中空纤维膜中除去管腔填料和/或不需要的辅助处理剂的方法。 本发明同样涉及通过该方法从管腔填料和/或不期望的辅助处理剂中除去的中空纤维或中空纤维膜。
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公开(公告)号：US5505890A
公开(公告)日：1996-04-09
申请号：US325585
申请日：1994-10-19
申请人： Gustav Duweg , Lothar Steinfeld , Wolfgang Ansorge
发明人： Gustav Duweg , Lothar Steinfeld , Wolfgang Ansorge
IPC分类号： B01D61/24 , A61M1/18 , B01D63/02 , B01D69/02 , B01D69/08 , B01D71/12 , B01D71/16 , B01D71/18 , D01D5/24 , D01F2/28 , B29C47/00 , B01D39/00
摘要： A dialysis membrane in the form of a hollow fiber with a continuous internal cavity is made of cellulose acetate or a cellulose acetate derivative. The membrane has a maximum screen coefficient of 0.04 for albumin with a molecular weight of 68,000. A dialysis membrane in the form of a hollow fiber with a continuous internal cavity may be made in a process using a spinning solution containing an organic carboxylic acid and a cavity-forming liquid. Modification agents and/or water are optionally added and the solution is extruded through a spinneret suitable for the manufacture of hollow fibers. The precipitation of the resultant dialysis membrane and the usual further aftertreatment take place in a precipitation bath. The organic carboxylic acid preferably is acetic acid and the precipitation bath preferably is a dilute acetic acid.
摘要翻译： 具有连续内腔的中空纤维形式的透析膜由乙酸纤维素或醋酸纤维素衍生物制成。 对于分子量为68,000的白蛋白，膜的最大筛选系数为0.04。 具有连续内腔的中空纤维形式的透析膜可以在使用含有有机羧酸和空腔形成液体的纺丝溶液的方法中制备。 任选地加入改性剂和/或水，并通过适于制造中空纤维的喷丝头将溶液挤出。 所得透析膜的沉淀和通常的进一步后处理在沉淀浴中进行。 有机羧酸优选为乙酸，沉淀浴优选为稀乙酸。
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