EP 1422551 B1 20061206 - 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 03104031 A 20031030
- EP 02102586 A 20021114
Abstract (en)
[origin: EP1422551A1] A substantially light-insensitive black and white monosheet thermographic recording material comprising a support and a thermosensitive element, said 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 2-mercapto-benzothiazole compound represented by formula (I): <CHEM> wherein R<1>, R<2>, R<3> and R<4> are independently hydrogen, an optionally substituted alkyl group, an optionally substituted aryl group, an alkoxy group, an ester group, a carbamate group, a carbonato group, a SO2R<5> group, a -NR<6>R<7> group, a nitro group, a cyano group, an acyl group, a halogen atom, an optionally alkyl or alkoxy-substituted -SO2NH-phenyl group, a perfluoro-alkyl group, a -CONHR<8> group, a -NHOCR<9> group, a -OCOOR<10> group or a -NHCOOR<11> group; R<5>, R<9>, R<10> and R<11> are independently an optionally substituted alkyl or an aryl group; R<6>, R<7> and R<8> are independently a hydrogen atom, an optionally substituted alkyl group or an acyl group; R<1> and R<2> together, R<2> and R<3> together and R<3> and R<4> together can independently represent the atoms necessary to form a carbocyclic, aromatic, heteroaromatic or heterocyclic ring with the proviso that at least one of R<1>, R<2>, R<3> and R<4> is not hydrogen.
IPC 8 full level
G03C 1/498 (2006.01); B41M 5/30 (2006.01); B41M 5/32 (2006.01)
CPC (source: EP)
G03C 1/49845 (2013.01); G03C 1/4989 (2013.01); G03C 2200/40 (2013.01)
Citation (examination)
US 6297000 B1 20011002 - SUZUKI HIROYUKI [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 03104031 A 20031030