Method for preparing superabsorbent polymer, and superabsorbent polymer
US11459430B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jun 21, 2017 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Mar 3, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing superabsorbent polymer that introduces a plate type and rod-shaped clay additive in the superabsorbent polymer, and thus exhibits basic properties of a superabsorbent polymer equivalent to or much better than the existing superabsorbent polymer through multi-crosslinking, and particularly, can improve absorbency under pressure (AUP), and a superabsorbent polymer obtained thereby.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.