Absorbent article with improved surface material
US7763770B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Mar 1, 2004 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | May 18, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/15495
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent article comprises an absorbent body, a liquid-permeable covering layer arranged over a first surface on the absorbent body, and a liquid-permeable liquid-transfer layer arranged between the absorbent body and the liquid-permeable covering layer. The liquid-permeable covering layer comprises a nonwoven material with a pore volume distribution curve with a maximum at a pore radius greater than or equal to 50 μm and with a wetting angle of at least 120°. The liquid-transfer layer comprises a fibrous layer with a pore volume distribution curve with a maximum at a pore radius of from 105 to 325 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.