Preparation method of superabsorbent polymer and superabsorbent polymer prepared thereby
US10023703B2 · kind B2 · utility
5Cited by
8References
8Claims
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Key dates
| Filing date | Jun 12, 2015 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Aug 2, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2471/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided are a preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby. The preparation method of the superabsorbent polymer according to the present disclosure enables preparation of the superabsorbent polymer which is excellent in absorption properties such as centrifuge retention capacity and absorbency under pressure, and also has improved permeability. In addition, the preparation method exhibits excellent operability during the preparation (in particular, surface crosslinking of the polymer) and excellent productivity due to low production of coarse particles and fine particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.