Disposable diaper having density and basis weight profiled absorbent core
US4685915A · kind A · utility
89Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1984 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Apr 6, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53795
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable diaper wherein a central portion of its absorbent core has a higher density and higher basis weight per unit area than longitudinally spaced end portions of the absorbent core. Such absorbent cores may comprise a mixture of hydrophilic fibers and discrete particles of a highly absorbent material such as, for example, hydrogel material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.