Absorbent article
US8927803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2010 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Aug 9, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/53
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To provide an absorbent article capable of sufficiently fulfilling a function of preventing lateral leakage even when a force is applied in the width direction (transverse direction) during wearing. An absorbent article comprising a liquid-pervious surface sheet, a liquid-impervious leakage-preventive sheet, and a liquid-retentive absorption body disposed between the surface sheet and the leakage-preventive sheet, wherein the absorption body comprises at least two layers, at least one of the layers is a first absorption body layer composed of a hydrophilic sheet and a super-absorbent polymer, and in the longitudinal middle area of the absorbent article, the width of the first absorption body layer is larger than the width of other absorption body layer(s). In the first absorption body layer, a plurality of hydrophilic sheets are stacked, the super-absorbent polymer is disposed between hydrophilic sheets, and the hydrophilic sheets are joined in a region where the super-absorbent polymer is not spread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.