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公开(公告)号：US20190060838A1
公开(公告)日：2019-02-28
申请号：US15763291
申请日：2016-06-24
IPC分类号： B01D69/02 , B01D69/08 , B01D69/14 , B01D71/34 , B01D71/02 , B01D65/02 , C02F1/44 , C02F1/28 , B01J20/06 , B01J20/20 , B01J20/28 , B01J20/26
摘要： The purpose of the present invention is to provide a porous molded body which is capable of adsorbing and removing low-molecular-weight organic matters or ions with high removal rate. The present invention relates to a porous molded body which is provided with: a plurality of columnar structures containing a crystalline polymer and having a (long side)/(short side) aspect ratio of 2 or more; and inorganic particles.
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公开(公告)号：US20200246756A1
公开(公告)日：2020-08-06
申请号：US16305757
申请日：2017-05-30
摘要： The porous hollow-fiber membrane of the present invention comprises a fluororesin polymer, and has columnar structures oriented in the longitudinal direction thereof. In the porous hollow-fiber membrane, molecular chains of the fluororesin polymer have been oriented in the longitudinal direction of the porous hollow-fiber membrane and have an average value ν of Raman orientation parameter of 1.5-4.0.
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3.发明申请公开(公告)号：US20180280893A1
公开(公告)日：2018-10-04
申请号：US15764390
申请日：2016-09-30
发明人： Koichi TAKADA , Gohei YAMAMURA , Ryuichiro HIRANABE , Masayuki HANAKAWA , Hiroshi TAKAHASHI , Takaaki MIHARA , Masahiro KIMURA , Hiroki TOMIOKA
摘要： The problem to be solved by the present invention is to provide a separation film mainly comprising a cellulose-based resin having high permeability. The present invention pertains to a separation film containing a cellulose ester, wherein the separation film is provided with a bicontinuous structure comprising voids and phases containing the cellulose ester, and the width of the voids is 1 to 200 nm inclusive.
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公开(公告)号：US20170348649A1
公开(公告)日：2017-12-07
申请号：US15539355
申请日：2015-12-25
CPC分类号： B01D71/34 , B01D67/0016 , B01D67/0018 , B01D67/0027 , B01D69/02 , B01D69/08 , B01D71/32 , B01D2323/08 , B01D2325/02 , B01D2325/24 , B01D2325/30 , B01D2325/32 , B01D2325/34
摘要： An object of the present invention is to provide a porous hollow-fiber membrane having high strength while maintaining high pure-water permeation performance. A porous hollow-fiber membrane of the present invention is a porous hollow-fiber membrane including a fluororesin-based polymer, in which the porous hollow-fiber membrane has a columnar texture oriented in a longitudinal direction of the porous hollow-fiber membrane, and a molecular chain of the fluororesin-based polymer is oriented in the longitudinal direction of the porous hollow-fiber membrane.
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5.发明申请公开(公告)号：US20200246759A1
公开(公告)日：2020-08-06
申请号：US16853936
申请日：2020-04-21
发明人： Koichi TAKADA , Gohei YAMAMURA , Ryuichiro HIRANABE , Masayuki HANAKAWA , Hiroshi TAKAHASHI , Takaaki MIHARA , Masahiro KIMURA , Hiroki TOMIOKA
摘要： The problem to be solved by the present invention is to provide a separation film mainly comprising a cellulose-based resin having high permeability. The present invention pertains to a separation film containing a cellulose ester, wherein the separation film is provided with a bicontinuous structure comprising voids and phases containing the cellulose ester, and the width of the voids is 1 to 200 nm inclusive.
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公开(公告)号：US20200206689A1
公开(公告)日：2020-07-02
申请号：US16305540
申请日：2017-05-30
摘要： This hollow fiber membrane module is provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated in the cylindrical case; and a first potting unit attaching the end parts of the plurality of hollow fiber membranes positioned at the first end of the cylindrical case while the end parts are open. The hollow fiber membranes have a rupture strength of 23 MPa or more. The filling rate for the hollow fiber membranes is 40-80%.
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公开(公告)号：US20190330085A1
公开(公告)日：2019-10-31
申请号：US16312768
申请日：2017-06-23
发明人： Shun SHIMURA , Masayuki HANAKAWA , Kenta IWAI , Tamotsu KITADE , Masahiro KIMURA
IPC分类号： C02F1/44 , B01D63/02 , B01D65/02 , B01D65/08 , B01D69/02 , B01D69/08 , B01D69/12 , B01D71/34
摘要： The present invention relates to a composite porous hollow-fiber membrane including a first layer and a second layer which each include a fluororesin-based polymer, in which at least a part of molecular chains of the fluororesin-based polymer is oriented in a longitudinal direction of the composite porous hollow-fiber membrane, the molecular chains of the fluororesin-based polymer have a degree of orientation it in the longitudinal direction of the composite porous hollow-fiber membrane of 0.4 or higher but less than 1.0, the degree of orientation it being calculated with the specific formula.
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公开(公告)号：US20190070565A1
公开(公告)日：2019-03-07
申请号：US16079837
申请日：2017-02-24
摘要： An object of the present invention is to provide a porous hollow-fiber membrane satisfying both high strength and high pure-water permeation performance and at the same time, having high bending resistance. The present invention relates to a porous hollow-fiber membrane including a fluororesin-based polymer, in which the porous hollow-fiber membrane has a columnar texture oriented in a longitudinal direction of the porous hollow-fiber membrane and when a photograph of a cross-section parallel to the longitudinal direction of the porous hollow-fiber membrane is binarized into a structure portion and a void portion, the following 1) and 2) are satisfied: 1) a proportion of an area of the void portion is from 20 to 50%, and 2) a value obtained by dividing a total of peripheral lengths of the void portions by a total of areas of the void portions is 2.0 μm−1 or less.
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公开(公告)号：US20180369757A1
公开(公告)日：2018-12-27
申请号：US15755755
申请日：2016-06-24
发明人： Takaaki YASUDA , Masayuki HANAKAWA , Kenta IWAI , Toshiyuki ISHIZAKI , Tamotsu KITADE , Masahiro KIMURA
CPC分类号： B01D69/087 , B01D67/0018 , B01D67/0027 , B01D69/02 , B01D69/08 , B01D69/085 , B01D71/32 , B01D71/34 , B01D2325/04 , B01D2325/20 , B01D2325/22 , B01D2325/24 , H01M2/1653 , H01M8/0239
摘要： The present invention provides a porous hollow fiber membrane that has both high strength and high pure water permeability, and that exhibits excellent thermal deformation resistance. The present invention is related to a porous hollow fiber membrane containing a fluororesin-based polymer, and a manufacturing method of the membrane comprises a drawing step and a relaxing step. The porous hollow fiber membrane is characterized in that: the molecular chain of the polymer is oriented in the longitudinal direction of the hollow fiber membrane; and at the same time internal distortion of oriented non-crystalline chains, which is disadvantageous in terms of entropy, is alleviated.
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公开(公告)号：US20200246754A1
公开(公告)日：2020-08-06
申请号：US16482089
申请日：2018-01-31
摘要： The present invention relates to a hollow fiber membrane module provided with: a tubular casing having a first end and a second end in the axial direction; a plurality of hollow fiber membranes; a first potting part; and a second potting part, the hollow fiber membrane module further having a flow regulation structure in which a fluid flowing outside the hollow fiber membranes from the second end side toward the first end side forms a flow directed to the radial center on the second end side of the first potting part, and further forms a radial flow directed from the radial center to the radially outer peripheral side on the second end side of the first potting part.
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