Manufacture of web superabsorbent polymer and fiber
US7144980B2 · kind B2 · utility
3Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2005 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Feb 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A web of superabsorbent polymer and fiber made by an in situ neutralization, wet-laid process, wherein the degree of neutralization of the superabsorbent polymer is partial, preferably less than about 80 mol %. The web exhibits an excellent centrifuge retention capacity property, as compared to prior webs of superabsorbent polymer and cellulosic fiber made by in situ neutralization, wherein the degree of neutralization is total, such as 100 mol % or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.