Polymer gel having sponge-like porous structure
US12227642B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jul 29, 2019 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | May 26, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2471/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An object of the present invention is to provide a gel material including a solvophilic polymer having a μm-scale porous structure.A polymer gel in which solvophilic polymer units are cross-linked with each other, wherein the polymer gel contains a solvent and has a three-dimensional network structure having two regions: a first region in which the polymer units are densely present and a second region in which the polymer units are sparsely present, and a mesh size composed of the first region is from 1 to 500 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.