Preparation method for super absorbent polymer sheet
US11186668B2 · kind B2 · utility
1Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Jun 19, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of preparing a superabsorbent polymer sheet by polymerization of monomers in the presence of an encapsulated foaming agent and an inorganic foaming agent is provided. According to the method of preparing the superabsorbent polymer sheet of the present invention, a porous and flexible superabsorbent polymer sheet may be prepared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.