EP 1245403 B1 20070103 - Thermographic recording material with improved image tone.
Title (en)
Thermographic recording material with improved image tone.
Title (de)
Thermographisches Aufzeichnungsmaterial mit verbessertem Bildton
Title (fr)
Matériau thermographique d'enregistrement avec ton d'image amélioré
Publication
Application
Priority
EP 01000095 A 20010329
Abstract (en)
[origin: EP1245403A1] A monosheet black and white substantially light-insensitive thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing a substantially light-insensitive organic silver salt, a 1,2-dihydroxyphenyl-compound in thermal working relationship therewith and a binder, characterized in that said 1,2-dihydroxyphenyl-compound is represented by formula (I) : R<1>SO2R<2>, wherein R<1> is an optionally substituted aryl group and R<2> is selected from the group consisting of a 3,4,5-trihydroxyphenyl group, a 3-alkoxy-4,5-dihydroxyphenyl group and a 3-aryloxy-4,5-dihydroxyphenyl group; or said 1,2-dihydroxyphenyl-compound is represented by formula (II): R<3>COOR<4>, wherein R<3> is a 3-alkoxy-4,5-dihydroxyphenyl group or a 3-aryloxy-4,5-dihydroxyphenyl group; and R<4> is an alkyl group or an aryl group; and a thermographic recording process therefor.
IPC 8 full level
B41M 5/32 (2006.01); B41M 5/323 (2006.01); G03C 1/498 (2006.01)
CPC (source: EP)
G03C 1/49827 (2013.01); G03C 1/49845 (2013.01); G03C 1/4989 (2013.01); B41M 5/32 (2013.01)
Designated contracting state (EPC)
DE FR GB
Designated extension state (EPC)
AL LT LV MK RO SI
DOCDB simple family (publication)
EP 1245403 A1 20021002; EP 1245403 B1 20070103; DE 60125711 D1 20070215; DE 60125711 T2 20071025; JP 2002326461 A 20021112; JP 3807731 B2 20060809
DOCDB simple family (application)
EP 01000095 A 20010329; DE 60125711 T 20010329; JP 2002091930 A 20020328