Absorbent structures containing superabsorbent material and web of wetlaid stiffened fibers
US5217445A · kind A · utility
176Cited by
25References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1990 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Dec 17, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53062
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Absorbent structures having a wetlaid fluid acquisition/distribution layer with an average dry density of less than about 0.30 g/cc, an average density upon wetting with 1.0% NaCl aqueous solution of less than about 0.20 g/cc, and an average dry basis weight from about 0.001 to about 0.10 g/cm.sup.2 ; and a fluid storage layer positioned beneath the aquisition/distribution layer comprising at least about 15% superabsorbent material. The fluid acquisition/distribution layer comprises from about 50% to 100% chemically stiffened cellulosic fibers and from 0% to about 50% binding means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.