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US 2023/0058893 A1Published application
Composite semipermeable membrane
AssigneeNitto Denko Corporation
InventorsTomotsugu MIYABE, Masamitsu TAGUCHI
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Abstract
A composite semipermeable membrane includes a porous support membrane, a separation functional layer containing a polyamide disposed on the porous support membrane, and a coating layer disposed on the separation functional layer, wherein a water contact angle of a surface of the coating layer is 40° or less, and a protein adsorption force of the surface of the coating layer is 0.4 nN or less.
Claims6
A composite semipermeable membrane comprising:
- a porous support membrane;
- a separation functional layer containing a polyamide disposed on the porous support membrane;
- and
- a coating layer disposed on the separation functional layer,
- wherein a water contact angle of a surface of the coating layer is 40° or less, and
- wherein a protein adsorption force of the surface of the coating layer is 0.4 nN or less.
3 more elements
A method of manufacturing a composite semipermeable membrane comprising:
- forming a porous support membrane;
- forming a separation functional layer containing a polyamide on the porous support membrane;
- and
- forming a coating layer on the separation functional layer,
- wherein a water contact angle of a surface of the coating layer is 40° or less, and
- wherein a protein adsorption force of the surface of the coating layer is 0.4 nN or less.
3 more elements
Dependencies are inferred from the claim text.