Gas sensing element and method for making same
US5284775A · kind A · utility
7Cited by
91References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1992 |
| Grant date | Feb 8, 1994 |
| Priority date | — |
| Expiry date | Sep 21, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/204998
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Sensing composition precursors and sensing compositions, useful in sensing the concentration of a gas, e.g., carbon dioxide, in a medium, e.g., blood, are disclosed. In one embodiment, the sensing composition precursor comprises a dispersed aqueous liquid including a sensing component dissolved therein, a polymer precursor, and a hydrophilic dispersing agent selected from hydroxyalkyl celluloses and mixtures thereof in an amount effective to facilitate maintaining the dispersed aqueous liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.