EP 0809142 B1 20050831 - Production process for a thermographic recording material with improved stability and image-tone
Title (en)
Production process for a thermographic recording material with improved stability and image-tone
Title (de)
Herstellungsverfahren für ein thermographisches Aufzeichnungsmaterial mit erhöhter Stabilität und verbessertem Bildton
Title (fr)
Procédé de production d'une matériau d'enregistrement thermographique à stabilité augmentée et ton d'image amélioré
Publication
Application
Priority
- EP 97201443 A 19970514
- EP 96201376 A 19960521
Abstract (en)
[origin: EP0809142A1] A recording material comprising a support, a thermosensitive element and a protective layer therefor, the thermosensitive element comprising a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith and a binder, characterized in that the thermosensitive element further comprises in reactive association with the substantially light-insensitive organic silver salt and the organic reducing agent a substituted, exclusive of groups having an exclusively electron withdrawing character, or unsubstituted compound with an unsaturated 5-membered heterocyclic ring annulated with an aromatic ring system, the ring consisting of nitrogen and carbon atoms with at least one of the nitrogen atoms having a hydrogen atom and none of the carbon atoms being directly linked to a sulfur atom or being part of a carbonyl-group; a production process therefor and a thermal image recording process utilizing the recording material.
IPC 1-7
IPC 8 full level
G03C 1/498 (2006.01)
CPC (source: EP)
G03C 1/49854 (2013.01); G03C 1/4989 (2013.01); G03C 1/34 (2013.01)
Citation (examination)
- WO 9610213 A1 19960404 - MINNESOTA MINING & MFG [US]
- "Concise Science Dictionary", 1996, OXFORD UNIVERSITY PRESS, OXFORD
- SHARP D.W.A.: "The Penguin Dictionary of Chemistry", 1990, PENGUIN BOOKS
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 97201443 A 19970514