Back to results
US 2002/0172805 A1Published application
Thermal recording material
AssigneeFuji Photo Film Co., Ltd.
InventorsKazumori Minami, Yoshihiro Jinbo
Life of this patent
Estimating the term…
Abstract
A thermal recording material having good image storability and good lightfastness. The recording material does not have background fogging, even when exposed to light in a broad wavelength range or exposed to high-temperature surroundings. The recording material has a thermal recording layer provided on a support, and the thermal recording layer contains a compound of general formula (1), a compound of general formula (2), and a compound of general formula (3). 1
Claims16
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):
- 69
- 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, —OR51, —SR51, —COOR51, —CONR51R52, —SO2R51, —SO2NR51R52, —COR51, —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, —COOR53, —CONR53R54, —SO2R53, -SO2NR53R54, and —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:
- 70
- in general formula (2):
- R6 represents an alkyl group or an aryl group;
- one of X and Y represents C—R7 and the other of X and Y represents N;
- and R7 represents an alkyl group or an aryl group, and:
- General Formula (3)
- Rn—Mm
- 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.
17 more elements
Dependencies are inferred from the claim text.