Preparation method of superabsorbent polymer
US9808786B2 · kind B2 · utility
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Key dates
| Filing date | Sep 12, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Sep 12, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of preparing a superabsorbent polymer is provided, which is able to improve physical properties and to recycle fine powder generated during the preparation process. Particularly, a method of preparing a superabsorbent polymer capable of improving physical properties by using a base resin including a water-containing gel polymer and a base-treated fine powder regranulated body, which are different from each other in degree of neutralization, during preparation of the superabsorbent polymer, is provided.
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