Cross-linked gas permeable membrane of a cured perfluorinated urethane polymer, and optical gas sensors fabricated therewith
US5631340A · kind A · utility
28Cited by
18References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Mar 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/772
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor is provided for measuring dissolved gases such as O.sub.2 or CO.sub.2 in a fluid sample. The sensor is formulated so as to contain a gas permeable membrane of a cured perfluorinated urethane polymer and, incorporated therein, a gas-sensitive indicator component. Methods for making and using the membrane and sensor are provided as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.