Preparation method of super absorbent polymer
US12024577B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jan 20, 2021 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | May 14, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a preparation method of a super absorbent polymer. More specifically, it relates to a preparation method of a super absorbent polymer capable of significantly reducing the amount of fine powder generated during the process by mixing a hydrogel polymer with an additive having a specific structure, pulverizing it, and then drying it with a paddle-type dryer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.