Patent · US Active

UV-dosis indicators

US8049186B2 · kind B2 · utility

1Cited by

12References

15Claims

0Family size

Assignee

BASF SE

Inventors

Katia Studer · Rixheim, FR
Tunja Jung · Rheinfelden (Baden), DE
Kurt Dietliker · Allschwil, CH
Urs Lehmann · Basel, CH

Key dates

Filing date	Aug 15, 2007
Grant date	Nov 1, 2011
Priority date	—
Expiry date	Aug 15, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG03F7/105
WIPO fieldOptics
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.