Absorbent article having a hydrophobic transport layer
US4798603A · kind A · utility
770Cited by
45References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1987 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Oct 16, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/8491
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A distinctive absorbent article includes an absorbent body composed of a substantially hydrophilic material which is capable of absorbing a selected liquid. A liquid permeable topsheet layer composed of a substantially hydrophobic material is superposed in facing relation with said absorbent body and has an effective average pore size therein. A liquid permeable transport layer is located between the topsheet layer and the absorbent body, and is composed of a material which is less hydrophilic than the absorbent body and has an effective average pore size therein which is smaller than the pore size of the topsheet layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.