Patent ID: 6767862
Filing Date: 2004-07-27
Classification: B41M,G03C

Abstract:
A thermal recording material comprising:a support; and a thermal recording layer provided on the support, and including a compound represented by the following general formula (1), a compound represented by the following general formula (2), and a compound represented by the general formula (3): wherein, in general formula (1): R1, R2, R3 and R4 each independently represent a group selected from the group consisting of a hydrogen atom, halogen atoms, alkyl groups, aryl groups, â€”OR51, â€”SR51, â€”COOR51, â€”CONR51R52, â€”SO2R51, â€”SO2NR51R52, â€”COR51, â€”NR51R 52, nitro groups and cyano groups; R51 and R52 each independently represent a group selected from the group consisting of a hydrogen atom, alkyl groups, aryl groups and acyl groups; R5 represents a group selected from the group consisting of a hydrogen atom, alkyl groups, aryl groups, â€”COOR53, â€”CONR53R54, â€”SO2R53, â€”SO2NR53R54, and â€”COR53; and R53 and R54 each independently represent a group selected from the group consisting of a hydrogen atom, alkyl groups, aryl groups and acyl groups: in general formula (2): R6 represents an alkyl group or an aryl group; one of X and Y represents Câ€”R7 and the other of X and Y represents N; and R7 represents an alkyl group or an aryl group, and:Rnâ€”Mmâ€ƒâ€ƒGeneral Formula (3) in general formula (3): R represents an anion with a valency from 1 to 3; M represents a metal ion with a valency from 1 to 3; and n and m each independently represents an integer from 1 to 3.