EP 1199185 A1 20020424 - THERMAL RECORDING MATERIAL
Title (en)
THERMAL RECORDING MATERIAL
Title (de)
THERMISCHES AUFZEICHNUNGSMATERIAL
Title (fr)
MATERIAU POUR THERMOGRAVURE
Publication
Application
Priority
- JP 0002799 W 20000427
- JP 12267099 A 19990428
- JP 16331799 A 19990610
- JP 19176199 A 19990706
- JP 28967499 A 19991012
Abstract (en)
This invention relates to a thermal recording material with outstanding color-developing sensitivity and storage stability of images. The thermal recording material comprising a support and a thermosensitive color-developing layer provided thereon comprising a leuco dye which is colorless or light-colored at normal temperature, an organic acid substance which reacts upon heating with the leuco dye to develop color and a sensitizer. Said thermosensitive color-developing layer comprises at least one kind of diphenyl sulfone derivative selected from 4-hydroxydiphenyl sulfone derivatives represented by the following general formula (1) or general formula (2), 4,4'-dihydroxydiphenyl sulfone and 2,4'-dihydroxydiphenyl sulfone as an organic acid substance and a 4-acylbiphenyl as a sensitizer. <CHEM> (wherein R1 is an alkyl, aralkyl or aryl group) <CHEM> (wherein Y is a divalent organic group and n is an integer in the range 0-6)
IPC 1-7
IPC 8 full level
B41M 5/333 (2006.01); B41M 5/337 (2006.01); B41M 5/30 (2006.01); B41M 5/40 (2006.01); B41M 5/42 (2006.01)
CPC (source: EP KR)
B41M 5/30 (2013.01 - KR); B41M 5/3336 (2013.01 - EP); B41M 5/3375 (2013.01 - EP); B41M 5/30 (2013.01 - EP); B41M 5/42 (2013.01 - EP); B41M 5/423 (2013.01 - EP)
Designated contracting state (EPC)
DE ES FI FR GB IT
DOCDB simple family (publication)
EP 1199185 A1 20020424; EP 1199185 A4 20041006; AU 4144500 A 20001117; CA 2371443 A1 20001109; CN 1132742 C 20031231; CN 1351544 A 20020529; JP 3586428 B2 20041110; KR 20010112462 A 20011220; WO 0066364 A1 20001109
DOCDB simple family (application)
EP 00921079 A 20000427; AU 4144500 A 20000427; CA 2371443 A 20000427; CN 00807904 A 20000427; JP 0002799 W 20000427; JP 2000615226 A 20000427; KR 20017013667 A 20011025