Ultraviolet dosimeter film

US6015621A · kind A · utility

Assignee

• SynTec Gesellschaft fuer Chemie und Technologie der Informationsaufzeichnung mbH · DE

Inventors

• Regina Lischewski · Bitterfeld-Wolfen, DE
• Ursula Sell · Pohritzsch, DE
• Jorg Marx · Dessau, DE
• Uwe Gohs · Dresden, DE

Key dates

• Filing date: Apr 28, 1998
• Grant date: Jan 18, 2000
• Expiry date: Apr 28, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31504
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An ultraviolet-sensitive dosimeter material comprises at least one diazonium compound featuring absorption in the ultraviolet wavelength range, and a binder. The diazonium compound is preferably formed by a diazonium salt of the general formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and X.sup.- are selected from the following groups: PA1 R.sub.1 : H, halogen, alkyl with C.sub.1 -C.sub.5, alkoxy with C.sub.1 -C.sub.5, aryloxy, PA1 R.sub.2 : H, halogen, alkyl with C.sub.1 -C.sub.5, alkoxy with C.sub.1 -C.sub.5, aryloxy, PA1 NR'R" (R', R" same or differing alkyl compounds or heterocyclic armines, or COOR.sub.4 (R.sub.4 alkyl with C.sub.1 -C.sub.5), and PA1 R.sub.3 : H, alkoxy with C.sub.1 -C.sub.5, and PA1 X.sup.- : diazo process anions, or perfluorinated aliphatic or aromatic anions.