Nanoporous superabsorbent particles with low non-solvent levels
US12337297B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Oct 30, 2020 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Oct 30, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Superabsorbent particles having less than 1000 ppm non-solvent, a median size of from about 50 to about 2,000 micrometers, and containing nanopores having an average cross-sectional dimension of from about 10 to about 500 nanometers are provided. The superabsorbent particles exhibit a Vortex Time of about 80 seconds or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.