公开(公告)号：US10774190B2

公开(公告)日：2020-09-15

申请号：US16074145

申请日：2017-02-01

申请人： Toray Industries, Inc.

发明人： Seiji Fukuda ,  Yuko Yabuuchi

IPC分类号： C08J5/22 ,  B01J47/00

摘要： A method of producing an ion-conducting membrane containing a polymer having an ionic group, involves multiple liquid treatment steps in which a precursor membrane is brought into contact with an acid treatment solution or an alkali treatment solution, the precursor membrane containing a polymer in a state in which the aforementioned ionic group forms a salt with an impurity ion, wherein the liquid treatment time in the second and subsequent liquid treatment steps of the multiple liquid treatment steps is shorter than the liquid treatment time in the initial liquid treatment step.

公开(公告)号：US20190145913A1

公开(公告)日：2019-05-16

申请号：US16093400

申请日：2017-04-10

申请人： Toray Industries, Inc.

发明人： Seiji Fukuda

IPC分类号： G01N23/18 ,  G01N23/083 ,  G01N23/04

摘要： A continuous non-destructive inspection method for a membrane-electrode assembly includes detecting presence or absence of an internal foreign substance and an internal defect in the membrane-electrode assembly using a transmitted X-ray image obtained by repeating the steps of conveying the membrane-electrode assembly to a photographing position sandwiched between an X-ray imaging unit and an X-ray source disposed to face the X-ray imaging unit and that has a focal spot size of 50 μm or less; temporarily stopping the conveyance of the membrane-electrode assembly and emitting X-rays from the X-ray source toward the X-ray imaging unit in a state where the membrane-electrode assembly stands still in the photographing position to take a transmitted X-ray image; and restarting the conveyance of the membrane-electrode assembly to move the membrane-electrode assembly from the photographing position.

公开(公告)号：US20200262990A1

公开(公告)日：2020-08-20

申请号：US16074145

申请日：2017-02-01

申请人： Toray Industries, Inc.

发明人： Seiji Fukuda ,  Yuko Yabuuchi

IPC分类号： C08J5/22 ,  B01J47/00

摘要： A method of producing an ion-conducting membrane containing a polymer having an ionic group, involves multiple liquid treatment steps in which a precursor membrane is brought into contact with an acid treatment solution or an alkali treatment solution, the precursor membrane containing a polymer in a state in which the aforementioned ionic group forms a salt with an impurity ion, wherein the liquid treatment time in the second and subsequent liquid treatment steps of the multiple liquid treatment steps is shorter than the liquid treatment time in the initial liquid treatment step.