公开(公告)号：US20160038883A1

公开(公告)日：2016-02-11

申请号：US14922265

申请日：2015-10-26

申请人： Mitsubishi Rayon Co., Ltd.

发明人： Masaki KURASHINA ,  Toshinori SUMI ,  Yasuo HIROMOTO ,  Hiroyuki FUJIKI

IPC分类号： B01D67/00 ,  B01D71/34 ,  B01D69/08

CPC分类号： B01D67/003 ,  B01D67/0009 ,  B01D67/0016 ,  B01D67/0083 ,  B01D67/0093 ,  B01D67/0095 ,  B01D69/08 ,  B01D71/34 ,  B01D71/44 ,  B01D2323/08 ,  B01D2323/42 ,  B01D2325/40 ,  B01D2325/42 ,  C08J9/0066

摘要： A method of manufacturing a porous film includes a decomposition step of introducing a porous film precursor which is formed by coagulating an undiluted film forming solution containing a hydrophilic polymer and a hydrophobic polymer, into a decomposition container; bringing a heated chemical containing an oxidizing agent into contact with the porous film precursor in the decomposition container; warming the porous film precursor in contact with the chemical; and decomposing the hydrophilic polymer remaining inside the porous film precursor using the oxidizing agent. An apparatus for manufacturing a porous film includes a decomposition device provided with the decomposition container.

摘要翻译： 制造多孔膜的方法包括将通过将含有亲水性聚合物和疏水性聚合物的未稀释的成膜溶液凝集而形成的多孔膜前体引入分解容器的分解工序; 使含有氧化剂的加热化学品与分解容器中的多孔膜前体接触; 加热与化学品接触的多孔膜前体; 并使用氧化剂分解保留在多孔膜前体内的亲水性聚合物。 用于制造多孔膜的装置包括设置有分解容器的分解装置。

公开(公告)号：US20160370250A1

公开(公告)日：2016-12-22

申请号：US15204708

申请日：2016-07-07

申请人： Mitsubishi Rayon Co., Ltd.

发明人： Kotaro HIRAOKA ,  Toshinori SUMI ,  Hiroyuki FUJIKI

IPC分类号： G01M3/06 ,  G01N21/952 ,  G01M3/38

CPC分类号： G01M3/06 ,  B01D65/102 ,  B01D69/08 ,  B29C44/34 ,  G01M3/38 ,  G01N21/952 ,  Y10T428/249962

摘要： The present invention provides a defect inspection apparatus and a defect inspection method that allows easy and efficient inspection of a defect of a porous hollow fiber membrane. The defect inspection apparatus for a porous hollow fiber membrane of the present invention includes: a container storing a fluid; a passage member that is configured such that a hollow fiber membrane travel passage, which allows the porous hollow fiber membrane to pass therethrough continuously, is formed thereinside and the passage member being disposed in the fluid to thereby fill the passage with the fluid; a restriction means that restricts travel of the porous hollow fiber membrane such that the porous hollow fiber membrane passes through the fluid in the hollow fiber membrane travel passage of the passage member; a fluid suction means that flows the fluid in the hollow fiber membrane travel passage to thereby lower the pressure of the fluid in the hollow fiber membrane travel passage; and an air bubble detection means that detects an air bubble that is released into the fluid from a defect of the porous hollow fiber membrane. A defect inspection method for a porous hollow fiber membrane using the abovementioned defect inspection apparatus.

摘要翻译： 本发明提供一种容易且有效地检查多孔中空纤维膜的缺陷的缺陷检查装置和缺陷检查方法。 本发明的多孔性中空纤维膜的缺陷检查装置包括：容纳流体的容器; 构成为使得使多孔中空纤维膜连续通过的中空纤维膜行进通道形成在其内部，并且通道构件设置在流体中，从而用流体填充通道; 限制装置限制多孔中空纤维膜的移动，使得多孔中空纤维膜通过通道构件的中空纤维膜行进通道中的流体; 流体抽吸装置，其使中空纤维膜行进通道中的流体流动，从而降低中空纤维膜行进通道中的流体的压力; 以及气泡检测装置，其从所述多孔中空纤维膜的缺陷检测从所述流体释放的气泡。 使用上述缺陷检查装置的多孔中空纤维膜的缺陷检查方法。

公开(公告)号：US20160279579A1

公开(公告)日：2016-09-29

申请号：US15181439

申请日：2016-06-14

申请人： MITSUBISHI RAYON CO., LTD.

发明人： Hiroyuki FUJIKI ,  Toshinori SUMI ,  Yasuo HIROMOTO ,  Osamu MAEHARA ,  Masahiro TANAKA ,  Masashi TERAMACHI

IPC分类号： B01D69/08 ,  D01D1/09 ,  B29C47/10 ,  D01D4/06 ,  D01D5/24 ,  B29C47/00 ,  D01D5/247 ,  D01D4/02

CPC分类号： B01D69/085 ,  B01D69/087 ,  B01D2323/42 ,  B29C48/11 ,  B29C48/29 ,  B29L2031/755 ,  D01D1/09 ,  D01D4/02 ,  D01D4/06 ,  D01D5/24 ,  D01D5/247

摘要： A hollow fiber membrane-spinning nozzle that spins a hollow fiber membrane having a porous membrane layer and a support is provided in which the nozzle includes a resin flow channel through which a membrane-forming resin solution forming the porous membrane layer flows, the resin flow channel includes a liquid storage section that stores the membrane-forming resin solution and a shaping section that shapes the membrane-forming resin solution in a cylindrical shape and satisfies at least one of conditions (a) to (c): (a) the resin flow channel is disposed to cause the membrane-forming resin solution to branch and merge; (b) a delay means for delaying the flow of the membrane-forming resin solution is disposed in the resin flow channel; and (c) the liquid storage section or the shaping section includes branching and merging means for the membrane-forming resin solution therein.