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US 11,766,638 B2Granted
Ion-exchange membrane having an imprinted non-woven substrate
AssigneeBl Technologies, Inc.
InventorsYonghong Zhao, John H. Barber
Life of this patent
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Abstract
The present disclosure provides an ion-exchange membrane that includes a supporting substrate impregnated with an ion-exchange material. The supporting substrate includes an imprinted non-woven layer, and the imprinting includes a plurality of deformations at a surface density of at least 16 per cm2. The supporting substrate may lack a reinforcing layer. In some examples, the supporting substrate may include only a single layer of the imprinted non-woven fabric.
Claims19
An ion-exchange membrane comprising:
- a supporting substrate impregnated with an ion-exchange material,
- wherein the supporting substrate comprises an imprinted non-woven layer, the imprinted non-woven layer comprising a plurality of imprinted deformations at a surface density of at least 16 per cm2.
A method comprising:
- combining a supporting substrate comprising an imprinted non-woven layer, the imprinted non-woven layer comprising a plurality of imprinted deformations at a surface density of at least 16 per cm2, with a reaction solution comprising an anionic- or cationic-monomer and a crosslinker;
- and
- polymerizing the monomer and crosslinker.
A supporting substrate for an ion-exchange membrane,
- wherein the supporting substrate comprises an imprinted non-woven layer, the imprinted non-woven layer comprising a plurality of imprinted deformations at a surface density of at least 16 per cm2.
Dependencies are inferred from the claim text.