Disposable article with particulate hydrophilic polymer in an absorbent bed
US4102340A · kind A · utility
143Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | May 9, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53721
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent article such as a diaper or a sanitary napkin is made up of a facing sheet, an absorbent pad means, and a moisture-impervious backing sheet. The absorbent pad means comprises a fibrous structure having an intermediate densified layer and a layer of highly porous, loosely compacted batt on both sides of the densified layer. The batt layer between the densified fibrous layer and the moisture-impervious backing sheet contains distributed therein a particulate, water-insoluble but water-swellable polymeric absorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.