Fluorescent monitoring of microcapsule oxidation
US8581209B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2009 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jun 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to microcapsules that include a shell material and a core material. The core material of the microcapsules contains an environmentally sensitive luminescent colorant which exhibits characteristics of an emitted wavelength bandwidth, a peak intensity for emission and a time for luminescence decay, one or more of the characteristics capable of changing upon exposure to a given environment, and a luminescent standard which exhibits characteristics of an emitted wavelength bandwidth, a peak intensity for emission and a time for luminescence decay, one or more of the characteristics do not change upon exposure to said given environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.