G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/55 (2006.01) G01N 21/23 (2006.01) G01N 21/43 (2006.01) G02B 6/136 (2006.01) G01N 21/21 (2006.01)
Patent
CA 2064831
2064831 9102239 PCTABS00003 The disclosure relates to a polyimide waveguide which is used as an optical sensor for the quantitative determination of liquids in the vapor phase, as well as for the determination of NH3, "NH4OH", NO2 and N2O5. The polyimide waveguide is composed of a cover layer, one or two layers of a polyamide-imide or a perfluorinated polyimide and a substrate.
Fetherstonhaugh & Co.
Franke Hilmar
Hoechst Aktiengesellschaft
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