Disposable diaper
US7938814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2008 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Feb 17, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/53054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable diaper comprising a liquid permeable topsheet 2, a liquid impermeable backsheet 3, and a liquid retentive absorbent member 4 and having a substantially oblong shape, the absorbent member 4 in the crotch portion having a middle absorbent portion 42 which occupies the middle 3/7 of the width of the absorbent member 4 and side absorbent portions 43 which each occupy the outermost 1/7 of the width of the absorbent member 4, wherein each side absorbent portion 43 has a larger unit absorption capacity than the middle absorbent portion 42, hydrophobic sheets 3 and 21 are disposed on the lateral outer edge of each side absorbent portion 43 to cover from the upper to lower surfaces of the edge, and an elastic member 71 is disposed in the part having each side absorbent portion 43 in the longitudinal direction of the side absorbent portion 43.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.