Tampon with clean appearance post use
US7977532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2003 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Aug 5, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/904
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catamenial tampon comprises a compressed absorbent member having an inner region and an exterior surface, the compressed absorbent member comprising an absorbent material. An overwrap substantially covers the exterior surface of the compressed absorbent member. The overwrap comprises an apertured fluid pervious material that is hydrophobic or rendered hydrophobic relative to the compressed absorbent member. The fluid pervious overwrap therefore tends to remain free of fluid as the fluid is preferentially partitioned into the absorbent member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.