Surface cross-linked super absorbent resin and method for preparing same
US10100160B2 · kind B2 · utility
1Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2015 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Dec 14, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a superabsorbent polymer with a surface crosslinked with a water-soluble polyvalent cationic salt, a polycarbonic acid-based copolymer, and a surface crosslinking agent wherein an improvement is brought about in physical properties, with the concomitant reduction of process time and cost. Also, a method is provided for preparing the surface-crosslinked superabsorbent polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.