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公开(公告)号：EP3195922A1
公开(公告)日：2017-07-26
申请号：EP15836578.3
申请日：2015-08-25
CPC分类号： B01D69/08 , B01D67/0009 , B01D67/003 , B01D67/0088 , B01D69/00 , B01D69/02 , B01D69/06 , B01D71/06 , B01D71/28 , B01D71/34 , B01D71/68 , B01D2323/02 , B01D2323/06 , B01D2323/22 , B01D2325/02 , B01D2325/20 , B01D2325/36 , C08J2201/0464
摘要： The object of the present invention is to provide a porous membrane by which a useful component can be recovered while suppressing the clogging during filtration of a protein solution and from which only a small amount of an eluate is eluted even when an aqueous solution is filtered.
The present invention provides a porous membrane containing a hydrophobic polymer and a water-insoluble hydrophilic polymer, the porous membrane having a dense layer in the downstream portion of filtration in the membrane, having a gradient asymmetric structure in which the average pore diameter of fine pores increases from the downstream portion of filtration toward the upstream portion of filtration, and having a gradient index of the average pore diameter from the dense layer to the coarse layer of 0.5 to 12.0.摘要翻译： 本发明的目的是提供一种多孔膜，通过该多孔膜可以在抑制蛋白质溶液过滤期间的堵塞的同时回收有用成分，并且即使在过滤水溶液时也仅从少量洗脱液洗脱。 本发明提供一种含有疏水性聚合物和非水溶性亲水性聚合物的多孔膜，所述多孔膜在膜的过滤下游部分具有致密层，具有梯度不对称结构，其中细孔的平均孔径 从过滤下游部分向过滤上游部分增加，并且从致密层到粗糙层的平均孔径的梯度指数为0.5至12.0。
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公开(公告)号：EP3216515A1
公开(公告)日：2017-09-13
申请号：EP15856904.6
申请日：2015-11-04
CPC分类号： B01D71/68 , B01D67/0016 , B01D67/0095 , B01D69/02 , B01D69/08 , B01D69/087 , B01D2323/08 , B01D2323/10 , B01D2323/18 , B01D2323/20 , B01D2325/023 , B01D2325/36 , D01F6/76
摘要： A hollow fiber filtration membrane in which even when a relatively small contaminant having a size close to that of a permeation effective component is present in a filtration solution, Flux decrease over time during filtration is suppressed, and a useful component can be efficiently recovered, the hollow fiber filtration membrane being a hollow fiber filtration membrane comprising a polysulfone-based polymer and a hydrophilic polymer and having a large number of pores, the hollow fiber filtration membrane having a gradient asymmetric porous structure in which an average pore diameter of the pores increases from an outer surface portion toward an inner surface portion of the membrane, a content of the hydrophilic polymer of the membrane being from 6.0 to 10.0% by mass, a ratio between a content of the hydrophilic polymer at the inner surface portion and the content of the hydrophilic polymer of the membrane being in the range of from 0.50 to 0.80.
摘要翻译： 本发明提供一种中空纤维过滤膜，即使在过滤液中存在与渗透有效成分大小接近的较小污染物的情况下，也能够抑制过滤时的经时的焊剂的减少，有效地回收有用成分， 中空纤维过滤膜是包含聚砜系聚合物和亲水性聚合物并具有多个孔的中空纤维过滤膜，该中空纤维过滤膜具有梯度不对称多孔结构，其中孔的平均孔径从 朝向所述膜的内表面部分的外表面部分，所述膜的亲水性聚合物的含量为6.0-10.0质量％，所述内表面部分处的亲水性聚合物的含量与所述膜的内表面部分的含量之比 该膜的亲水聚合物在0.50至0.80的范围内。
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公开(公告)号：EP3216515B1
公开(公告)日：2020-03-25
申请号：EP15856904.6
申请日：2015-11-04
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公开(公告)号：EP3248672A1
公开(公告)日：2017-11-29
申请号：EP16740172.8
申请日：2016-01-19
CPC分类号： B01D71/68 , B01D69/02 , B01D69/08 , B01D2323/02 , B01D2325/022 , B01D2325/04 , B01D2325/36 , C07K1/34
摘要： The present invention provides a porous hollow fiber filtration membrane comprising a polysulfone-based polymer and hydrophilic polymer, the porous hollow fiber filtration membrane including a gradient asymmetric structure in which the average pore diameter of fine pores increases from the outer surface toward the inner surface, a content of the hydrophilic polymer in the membrane is 6.0 to 12.0% by mass, and a ratio of the content of the hydrophilic polymer in the outer surface to the content of the hydrophilic polymer in the membrane is 1.20 to 1.60.
摘要翻译： 本发明提供一种包含聚砜系聚合物和亲水性聚合物的多孔中空纤维过滤膜，所述多孔中空纤维过滤膜包括梯度不对称结构，其中细孔的平均孔径从外表面向内表面增加， 膜中亲水性聚合物的含量为6.0至12.0质量％，并且外表面中亲水性聚合物的含量与膜中亲水性聚合物的含量之比为1.20至1.60。
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公开(公告)号：EP3246085A1
公开(公告)日：2017-11-22
申请号：EP15877916.5
申请日：2015-10-09
发明人： KAYAMA, Yuzo , KOMURO, Masayasu
CPC分类号： B01D71/68 , B01D67/0016 , B01D69/02 , B01D69/08 , B01D2323/22 , B01D2325/023 , B01D2325/04 , B01D2325/20 , B01D2325/36 , C07K1/34 , C08L81/06
摘要： The present invention provides a porous hollow fiber membrane including a polysulfone-based polymer and a hydrophilic polymer, and having a dense layer in a section from an outer surface portion to a center region of a membrane thickness, a thickness of the dense layer being 10 to 30 µm, and a ratio of a pore having a pore size of more than 50 nm and a ratio of a pore having a pore size of 10 nm or smaller in the dense layer being 25 to 40% and 20% or less, respectively.
摘要翻译： 本发明提供一种多孔中空纤维膜，其包含聚砜系聚合物和亲水性聚合物，并且在从膜表面部到膜厚的中心区域的部分具有致密层，致密层的厚度为10 至30μm，且致密层中孔径大于50nm的孔与孔径为10nm或更小的孔的比分别为25至40％和20％或更小 。
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