Preparation method for super absorbent polymer sheet
US11278867B2 · kind B2 · utility
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4References
12Claims
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Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of preparing a superabsorbent polymer sheet by polymerization of monomers in the presence of an encapsulated foaming agent and an inorganic foaming agent is provided. According to the method of preparing the superabsorbent polymer sheet of the present invention, a porous and flexible superabsorbent polymer sheet having an excellent initial absorption rate may be prepared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.