Hot melt wetness indicator adhesive composition containing UV fluorescent agent
US8828271B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S252/964
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wetness indicating adhesive composition comprising an adhesive base composition incorporating a fluorescing agent in the adhesive base composition that only fluoresces when wet, and not when dry. In one embodiment, the adhesive base composition may be composed of water soluble, or at least partially water soluble, components, and in another embodiment the adhesive base composition may be composed of water sensitive components as for example one or more water insoluble polymers and a surfactant. The fluorescing agent can either be dissolved or dispersed in the adhesive base composition, and is preferably a water soluble fluorescing agent that becomes visible under ultraviolet light only when an article such as a disposable diaper becomes wet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.