Method for preparing superabsorbent polymer and superabsorbent polymer
US10702626B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 27, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Nov 27, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2248
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a method for preparing superabsorbent polymer that has antibacterial activity, in which the basic properties of superabsorbent polymer are maintained or improved, and may exhibits excellent bacterial proliferation inhibition effect, and superabsorbent polymer prepared thereby. The preparation method of superabsorbent polymer comprises the steps of: forming base polymer powder using hydogel polymer comprising crosslinked polymer, and then, surface crosslinking the base polymer powder using a surface crosslinking solution comprising a surface crosslinking agent and cuprous oxide, wherein the cuprous oxide is included in the content of 0.001 to 2.5 parts by weight, based on 100 parts by weight of the base polymer powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.