Patent · US Expired

Disposable absorbent articles with masking topsheet having one or more openings providing a passageway to a void space

US7794440B2 · kind B2 · utility

6Cited by
138References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 7, 2003
Grant dateSep 14, 2010
Priority date
Expiry dateJul 3, 2024

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F13/8405
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

The present invention relates to a disposable absorbent article, such as a diaper, training pants, adult incontinence article, having a specific topsheet with an opening to receive bowel movement waste (BM) and which is such that it masks the waste present underneath said topsheet. The topsheet is air permeable and it has a uniform pore size distribution with small pores only and it has a low surface energy and therefore an alcohol repellency of at least 7, typically at least 9 or even preferably 10.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.