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US 2026/0225045 A1Published application
Composite semipermeable membrane, composite semipermeable membrane module, fluid separation device, and method for producing composite semipermeable membrane
AssigneeToray Industries, Inc.
InventorsShunsuke MIZUNO, Takaaki YASUDA, Hiroki MINEHARA, Takafumi OGAWA, Atsushi OGAWA
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Abstract
Provided is a composite semipermeable membrane including: a support membrane; a separation functional layer disposed on the support membrane and containing a crosslinked polyamide; and a coating layer disposed on the separation functional layer and containing a vinyl alcohol copolymer having a structure represented by the general formula (1), provided that in the general formula (1), X is a divalent hydrocarbon group having 2 to 6 carbon atoms, and l, m and n are the number of repeating units.
Claims13
A composite semipermeable membrane comprising:
- a support membrane;
- a separation functional layer disposed on the support membrane and containing a crosslinked polyamide;
- and
- a coating layer disposed on the separation functional layer and containing a vinyl alcohol copolymer having a structure represented by the following general formula (1),
- provided that in the general formula (1), X is a divalent hydrocarbon group having 2 to 6 carbon atoms, and l, m and n are the number of repeating units.
2 more elements
Dependencies are inferred from the claim text.