Dry copying material

US3951660A · kind A · utility

Assignee

• AGFA-Gervaert AG · DE

Inventors

• Hermann Hagemann
• Anita von Konig · Krefeld, DE

Key dates

• Filing date: Dec 17, 1974
• Grant date: Apr 20, 1976
• Expiry date: Dec 17, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/165
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A material for use in a process of producing optical copies of graphic originals, which optical recording material is in a layer and contains a nonlight sensitive silver salt, such as silver behenate, and a toner compound in a binder. The layer is suitably supported. The toner compound is of the following formula: ##SPC1## In which PA1 X represents O or NR.sup.5 ; PA1 R.sup.1, r.sup.2, r.sup.3 or R.sup.4 represent (1) hydrogen, (2) alkyl, preferably with up to 20 and more, preferably with up to 4 carbon atoms, (3) cycloalkyl, especially cyclopentyl or cyclohexyl, (4) alkoxy, preferably with up to 2 carbon atoms, (5) alkylthio with preferably up to 2 carbon atoms, (6) hydroxy, (7) dialkylamino, the alkyl radicals also containing preferably up to 2 carbon atmos or (8) halogen, preferably chlorine or bromine; in addition to which R.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 or R.sup.3 and R.sup.4 may represent the ring members required to complete a fused aromatic ring, preferably a benzene ring; represents alkyl with preferably up to 20 and more, preferably with up to 2 carbon atoms.