pH reducing formulation
US7892218B2 · kind B2 · utility
0Cited by
11References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2004 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Apr 13, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/904
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A formulation effective in reducing the pH in a menstruating vagina or in a tampon inserted therein to below pH 5.5, comprising (a) 3-100% by weight of glycolide; (b) optionally 97-15% by weight of a solid organic acid; and (c) optionally 5-30% of a wetting agent. Also disclosed is a catamenial tampon for insertion in a human vagina which comprises the pH reducing formulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.