Composition for the detection of alcohol vapors in an air sample
US9410941B2 · kind B2 · utility
0Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2013 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Apr 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2800/307
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a silica gel-based composition capable of changing color when placed in contact with alcohol vapors. Said composition is particularly useful for preparing devices for the detection of alcohol, for example devices for carrying out an alcohol test on samples of air exhaled by individuals when subjected to checks by the police or competent authorities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.