EP 1420293 A1 20040519 - Stabilizers for use in substantially light-insensitive thermographic recording materials.
Title (en)
Stabilizers for use in substantially light-insensitive thermographic recording materials.
Title (de)
Stabilisatoren zur Verwendung in thermographischen Aufzeichnungsmaterialien die im wesentlichen lichtunempfindlich sind
Title (fr)
Stabilisateurs pour emploi en matériaux thermographiques d' enregistrement sensiblement non-sensibles à la lumière
Publication
Application
Priority
- EP 03104030 A 20031030
- EP 02102586 A 20021114
Abstract (en)
A substantially light-insensitive black and white monosheet thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one stabilizer selected from the group consisting of 1-(5-mercapto-1-tetrazolyl)-acetyl compounds represented bv formula (I): <CHEM> wherein R is -NR<2>R<3>, -OR<4> or an optionally substituted aryl or heteroaryl group; R<2> is hydrogen or an optionally substituted alkyl, aryl or heteroaryl group; R<3> is an optionally substituted aryl or heteroaryl group; and R<4> is an optionally substituted aryl group; and compounds with two or more groups represented by formula (II) : <CHEM> where Q comprises the necessary atoms to form a 5- or 6-membered unsaturated heterocyclic ring, A is hydrogen, a counterion to compensate the negative charge of the thiolate group or two or more A groups provide a linking group between the two or more groups represented by formula (II).
IPC 1-7
IPC 8 full level
B41M 5/30 (2006.01); B41M 5/32 (2006.01); G03C 1/498 (2006.01)
CPC (source: EP)
G03C 1/49845 (2013.01); G03C 1/4989 (2013.01); G03C 2200/40 (2013.01)
Citation (search report)
- [Y] WO 0196944 A2 20011220 - EASTMAN KODAK CO [US]
- [Y] US 5922529 A 19990713 - TSUZUKI HIROHIKO [JP], et al
- [Y] EP 0838722 A2 19980429 - FUJI PHOTO FILM CO LTD [JP]
- [Y] EP 1164421 A1 20011219 - EASTMAN KODAK CO [US]
- [Y] EP 1079269 A1 20010228 - KONISHIROKU PHOTO IND [JP]
- [Y] EP 0897130 A1 19990217 - FUJI PHOTO FILM CO LTD [JP]
- [Y] US 5686228 A 19971111 - MURRAY THOMAS J [US], et al
- [Y] US 4201582 A 19800506 - WHITE RICHARD L [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 03104030 A 20031030