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1. 发明授权

US07735660B2 Porous multilayered hollow fiber and filtration module, and method of manufacturing porous multilayered hollow fiber 有权
标题翻译：多孔多层中空纤维和过滤组件，以及制造多孔多层中空纤维的方法
公开(公告)号：US07735660B2
公开(公告)日：2010-06-15
申请号：US10684836
申请日：2003-10-15
申请人： Tooru Morita , Kiyoshi Ida , Hajime Funatsu
发明人： Tooru Morita , Kiyoshi Ida , Hajime Funatsu
IPC分类号： B01D63/02 , B01D63/04 , B01D61/00
CPC分类号： B01D69/08 , B01D63/022 , B01D63/04 , B01D63/12 , B01D69/141 , Y10T428/24091
摘要： A porous multilayered hollow fiber for outer side pressed filtration is made of a multilayer comprising a supporting layer constituted of the thickness of an expanded porous polytetrafluoroethylene tube, and a filtration layer provided on the outer surface of the supporting layer, wherein pores surrounded by fibrous frameworks in the filtration layer are smaller than those of the supporting layer, and the mean of the maximum fibril length (L) of the fibrous frameworks surrounding each pore in the outer surface of the filtration layer is designed to be small such that (X) and (Y) fall within the range on the XY plane, where (X) is a particle diameter of particles captured when the particle trapping ratio is equal to or more than 90% in the case where the filtration is done under an elevated pressure of 0.1 MPa, and (Y) is a value designated as RFL obtained by dividing (L) by (X). Thus, the degradation of flow rate due to the elapse of time can be prevented, since solid particles to be separated do not enter into pores, and clogging and blockade of the pores do not occur even in the case of filtering a solution of high turbidity. As a result, it is possible to recover filtration property easily by performing back-wash reverse filtration and to maintain excellent filtration property for a long time.
摘要翻译：用于外侧压制过滤的多孔多层中空纤维由包括由膨胀的多孔聚四氟乙烯管的厚度构成的支撑层和设置在支撑层的外表面上的过滤层的多层制成，其中由纤维框架包围的孔在过滤层中小于支撑层的过滤层，并且在过滤层的外表面中围绕每个孔的纤维骨架的最大原纤维长度（L）的平均值设计得较小，使得（X）和（Y）落在XY平面的范围内，其中（X）是当在0.1升的压力下进行过滤时，当颗粒捕获率等于或大于90％时捕获的颗粒的粒径（Y）是通过将（L）除以（X）而获得的指定为RFL的值。因此，由于要分离的固体颗粒不会进入孔隙，所以可以防止由于时间的流逝而引起的流量的降低，即使在过滤高浊度的溶液的情况下也不会发生堵塞和堵塞孔。结果，可以通过进行反冲洗反向过滤容易地回收过滤性能，并且能够长期保持优异的过滤性能。

2. 发明申请

US20110052900A1 POROUS MULTILAYER FILTER AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：多孔多层过滤器及其生产方法
公开(公告)号：US20110052900A1
公开(公告)日：2011-03-03
申请号：US12988242
申请日：2010-02-09
申请人： Atsushi Uno , Hajime Funatsu , Hiroyuki Tsujiwaki
发明人： Atsushi Uno , Hajime Funatsu , Hiroyuki Tsujiwaki
IPC分类号： B32B3/26 , B29C65/02
CPC分类号： B01D71/36 , B01D61/147 , B01D67/0093 , B01D69/02 , B01D69/12 , B01D2323/02 , B01D2323/30 , B01D2325/02 , B01D2325/20 , B01D2325/36 , B29C67/04 , B29K2027/18 , B29K2105/04 , B32B5/16 , B32B5/22 , B32B5/30 , B32B7/02 , B32B27/08 , B32B27/14 , B32B27/322 , B32B37/04 , B32B38/0012 , B32B2255/04 , B32B2255/10 , B32B2255/26 , B32B2260/025 , B32B2260/046 , B32B2264/0257 , B32B2305/026 , B32B2307/306 , B32B2307/546 , B32B2307/712 , B32B2307/714 , B32B2307/724 , B32B2307/726 , B32B2307/728 , B32B2307/73 , B32B2327/18 , Y10T428/249953
摘要： Provided is a porous multilayer filter which can trap ultrafme particles and in which permeability is high and treatment can be performed at a high flow rate. A porous multilayer filter is characterized by including a support layer 2 composed of a porous expanded PTFE sheet, and a filtration layer 3 composed of a porous expanded PTFE sheet which is different from that of the support layer 2, wherein at least a liquid-to-be-treated inflow surface of the filtration layer 3 is subjected to hydrophilization treatment, the filtration layer 3 and the support layer 2 are fusion-bonded to each other at a boundary therebetween to form a multilayer structure, pores of the support layer 2 three-dimensionally communicate with pores of the filtration layer 3, and pores surrounded by a fibril skeleton of the filtration layer 3 are smaller than pores of the support layer 2.
摘要翻译：提供一种多孔多层过滤器，其可以捕获超微粒子，并且其中渗透性高，并且可以以高流速进行处理。多孔多层过滤器的特征在于包括由多孔膨体PTFE片构成的支撑层2和由与支撑层2不同的多孔膨体PTFE片组成的过滤层3，其中至少液 - 过滤层3的被处理流入面进行亲水化处理，过滤层3和支撑层2之间的边界彼此熔合以形成多层结构，支撑层2的三孔与过滤层3的孔连通，并且由过滤层3的原纤维骨架包围的孔小于支撑层2的孔。

3. 发明申请

US20100203310A1 FLUORORESIN THIN FILM, FLUORORESIN COMPOSITE, POROUS FLUORORESIN COMPOSITE, MANUFACTURING METHODS THEREOF, AND SEPERATION MEMBRANE ELEMENT 审中-公开
标题翻译：氟菊酯薄膜，氟菊酯复合材料，多孔氟菊酯复合材料，其制造方法和分离膜元件
公开(公告)号：US20100203310A1
公开(公告)日：2010-08-12
申请号：US12376545
申请日：2007-08-06
申请人： Fumihiro Hayashi , Itsumu Furumoto , Shinichi Kanazawa , Kazuaki Ikeda , Tooru Morita , Hajime Funatsu
发明人： Fumihiro Hayashi , Itsumu Furumoto , Shinichi Kanazawa , Kazuaki Ikeda , Tooru Morita , Hajime Funatsu
IPC分类号： B32B5/00 , B29C39/00 , C08L27/18 , B05D1/12 , B32B5/18 , B32B37/24
CPC分类号： B01D67/0004 , B01D63/06 , B01D67/0027 , B01D69/12 , B01D71/32 , B01D71/34 , B01D71/36 , B01D2323/26 , B01D2325/04 , B32B1/08 , B32B7/12 , B32B15/08 , B32B15/16 , B32B15/20 , B32B27/322 , B32B2255/06 , B32B2255/26 , B32B2264/0257 , B32B2307/202 , B32B2307/54 , B32B2307/704 , B32B2307/726 , C08J5/18 , C08J2327/12 , Y10T428/249991
摘要： There are provided a fluororesin thin film which is composed of a fluororesin, which has a thickness of 20 μm or less and a Gurley's number of 300 seconds or more, and which includes no defects, such as voids and/or cracks; a method for manufacturing the fluororesin thin film in which after a fluororesin dispersion including a dispersing medium and a fluororesin powder dispersed therein is applied on a flat and smooth foil, the dispersing medium is dried, and the fluororesin powder is sintered; the fluororesin dispersion; a fluororesin composite including a porous base material and the fluororesin thin film; a manufacturing method thereof a porous fluororesin composite formed by stretching the fluororesin composite; and a separation membrane element using the porous fluororesin composite.
摘要翻译：提供了由氟树脂组成的氟树脂薄膜，该氟树脂的厚度为20μm以下，格利数为300秒以上，并且不包括空隙和/或裂纹等缺陷; 一种制造氟树脂薄膜的方法，其中在将包含分散介质和分散在其中的氟树脂粉末的氟树脂分散体涂布在平坦且光滑的箔上之后，将分散介质干燥，并将氟树脂粉末烧结; 氟树脂分散体; 包含多孔基材和氟树脂薄膜的氟树脂复合材料; 其制造方法为通过拉伸氟树脂复合体而形成的多孔氟树脂复合体; 以及使用多孔氟树脂复合物的分离膜元件。

4. 发明申请

US20130092623A1 POROUS MULTI-LAYER FILTER 审中-公开
标题翻译：多孔多层过滤器
公开(公告)号：US20130092623A1
公开(公告)日：2013-04-18
申请号：US13805489
申请日：2012-02-08
申请人： Hiroyuki Tsujiwaki , Atsushi Uno , Hajime Funatsu
发明人： Hiroyuki Tsujiwaki , Atsushi Uno , Hajime Funatsu
IPC分类号： B01D69/12
CPC分类号： B01D69/12 , B01D53/228 , B01D61/147 , B01D67/0027 , B01D71/36 , B01D2325/02 , B32B3/26 , B32B7/02 , B32B27/08 , B32B27/322 , B32B2250/03 , B32B2250/242 , B32B2305/026 , B32B2307/518 , B32B2307/724
摘要： In a filter for microfiltration, a filtration layer is protected so as not to be damaged. A porous multi-layer filter, which is a laminated body of three porous stretched PTFE sheets that have been biaxially stretched in the longitudinal and transverse directions, includes a filtration layer as a middle layer, a protection layer stacked on one surface of the filtration layer on the liquid-to-be-treated inflow side, and a support layer stacked on another surface of the filtration layer, in which the one surface and the other surface of the filtration layer are fusion-bonded to the protection layer and the support layer at boundaries therebetween, pores of the protection layer and pores of the support layer three-dimensionally communicate with pores of the filtration layer, and the mean pore size of pores of the filtration layer is smaller than the mean pore size of pores of each of the protection layer and the support layer.
摘要翻译：在微滤过滤器中，过滤层被保护，以免损坏。作为在纵向和横向双轴拉伸的三个多孔拉伸PTFE片材的层叠体的多孔多层过滤器包括作为中间层的过滤层，层叠在过滤层的一个表面上的保护层在待处理液体流入侧，以及叠层在过滤层的另一表面上的支撑层，其中过滤层的一个表面和另一个表面与保护层和支撑层熔合在其间的边界处，保护层的孔和支撑层的孔与过滤层的孔三维连通，并且过滤层的孔的平均孔径小于各层的孔的平均孔径保护层和支撑层。

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