EP 0372325 B1 19930804 - RECORDING MATERIAL
Title (en)
RECORDING MATERIAL
Publication
Application
Priority
DE 3841184 A 19881207
Abstract (en)
[origin: CA2004666A1] Recording material Pressure-sensitive reactive recording material containing a) as the colour-forming agent, a tetraindolyl heptamethine ether or alcohol of the formulae I/1, I/2, I/3 or I/4 I/1 I/2 I/3 I/4 Le A 26 425 - Foreign countries b) and, as the colour developer, the salt of a poly valent metal and an aromatic carboxylic acid having at least 10 carbon atoms, of the formula (II) (II) wherein A, B, D and E denote and the other radicals have the meanings given in the description, produces light-stable copies which can also be read by machines (OCR). Le A 26 425
IPC 1-7
IPC 8 full level
B41M 5/132 (2006.01); B41M 5/136 (2006.01); B41M 5/155 (2006.01)
CPC (source: EP US)
B41M 5/136 (2013.01 - EP US); B41M 5/155 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0372325 A2 19900613; EP 0372325 A3 19910313; EP 0372325 B1 19930804; CA 2004666 A1 19900607; DE 3841184 A1 19900613; DE 58905152 D1 19930909; FI 895819 A0 19891205; JP H02202478 A 19900810; US 5024987 A 19910618
DOCDB simple family (application)
EP 89121777 A 19891124; CA 2004666 A 19891205; DE 3841184 A 19881207; DE 58905152 T 19891124; FI 895819 A 19891205; JP 31549989 A 19891206; US 43892189 A 19891117