UV-dosis indicators

Radiant energy – Invisible radiation responsive nonelectric signalling – Optical change type

Reexamination Certificate

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Reexamination Certificate

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08049186

ABSTRACT:
The present application provides a composition showing a color change depending on the absorbed radiation-dose, comprising (a) an acid responsive colorant; (b) a photolatent acid; characterized in that (b) is a sulfonyloxime ester compound; and its use as a radiation dose indicator.

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Copending U.S. Appl. No. 12/308,279, filed Dec. 11, 2008.

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