Absorbent structures of chemically treated cellulose fibers
US6770576B2 · kind B2 · utility
50Cited by
86References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2003 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Feb 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are absorbent structures including fibers bound with a polyvalent cation-containing compound and superabsorbent polymer particles. The fibers exhibit an ion extraction factor of at least 5%. Also disclosed are multi-strata absorbent structures, such as disposable absorbent articles, including the treated fibers and SAP particles. Further disclosed are methods for preparing absorbent structures including the treated fibers; structures including fibers combined with a polyvalent cation-containing compound; and methods for treating or coating SAP particles with polyvalent cation-containing compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.