Title:
SPIRAL MEMBRANE ELEMENT AND EDGE PART FOR SPIRAL MEMBRANE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2024/058082
Kind Code:
A1
Abstract:
The present invention provides a spiral membrane element suitable for improving adhesiveness between an edge part and an external packaging material. A spiral membrane element 100 comprises an element body 10, an edge part 20 and an external packaging material 30. The edge part 20 comprises a body 21 having a first protrusion 22, and a skirt part 25 positioned between the element body 10 and the external packaging material 30 and satisfies at least one requirement selected from the group consisting of (1)-(3) indicated below. (1) The first protrusion 22 has an incision 221, and a part of the external packaging material 30 enters at least a part of the incision 221. (2) The skirt part 25 has at least one of a hole 251 and a through-hole 252, and a part of the external packaging material 30 enters at least a part of at least one of the hole 251 and the through-hole 252. (3) The first protrusion 22 has a recess 222, and a part of the external packaging material 30 enters at least a part of the recess 222.
Inventors:
MIYAMOTO ATSUKO (JP)
HATAHOKO IBUKI (JP)
SAKAKIBARA YASUYUKI (JP)
HATAHOKO IBUKI (JP)
SAKAKIBARA YASUYUKI (JP)
Application Number:
PCT/JP2023/032934
Publication Date:
March 21, 2024
Filing Date:
September 08, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B01D63/10; B01D63/00
Domestic Patent References:
| WO2018181411A1 | 2018-10-04 | |||
| WO2016121436A1 | 2016-08-04 |
Foreign References:
| JP2010194406A | 2010-09-09 | |||
| JP2017119237A | 2017-07-06 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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