Processing method of base material sheet, manufacturing method of modified base material sheet, base material with grafted polymer chain, and ion exchange membrane
US11517894B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Jun 1, 2021 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Jun 1, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A processing method of a base material sheet includes winding out the base material sheet wound up by a first core and a first porous sheet wound up by a second core, winding up by a third core the base material sheet and the first porous sheet to be overlapped with each other, and processing the base material sheet by a first processing liquid held in the first porous sheet; and winding out the base material sheet and the first porous sheet overlappingly wound up by the third core, winding up the first porous sheet by the second core, and winding up the base material sheet by the first core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.