Material enhancement to maintain high absorbent capacity under high loads following rigorous process conditions
US6720073B2 · kind B2 · utility
18Cited by
26References
91Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Dec 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent composite that can handle complex fluids and maintain high absorbent capacity under high loads even after the material has been subjected to rigorous processing conditions. The absorbent composite includes an inhomogeneously crosslinked superabsorbent polymer having a highly crosslinked outer shell. The surface of the superabsorbent polymer includes a protective fibrous coating material and an association agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.