EP 0453395 B1 19951102 - Pressure sensitive recording material.
Title (en)
Pressure sensitive recording material.
Title (de)
Druckempfindliches Aufzeichnungsmaterial.
Title (fr)
Matériau d'enregistrement sensible à la pression.
Publication
Application
Priority
CH 103590 A 19900329
Abstract (en)
[origin: EP0453395A1] Pressure- or heat-sensitive recording material in which the colour reactant system contains, as essential constituents, (A) an aromatic or nitrogen-containing heterocyclic aldehyde compound, (B) an organic condensation component containing an activated methylene group or a primary or secondary nitrogen atom, and (C) an electron-attracting and a colour-developing component.
IPC 1-7
IPC 8 full level
B41M 5/155 (2006.01); B41M 5/136 (2006.01); B41M 5/323 (2006.01); B41M 5/333 (2006.01)
CPC (source: EP US)
B41M 5/136 (2013.01 - EP US); B41M 5/323 (2013.01 - EP US)
Citation (examination)
Hauptmann's " Organische Chemie" VEB Deutscher Verlag für Grundstoffindustrie,1985
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0453395 A1 19911023; EP 0453395 B1 19951102; AU 636968 B2 19930513; AU 7396691 A 19911003; DE 59106793 D1 19951207; JP H04221675 A 19920812; US 5254522 A 19931019
DOCDB simple family (application)
EP 91810189 A 19910321; AU 7396691 A 19910328; DE 59106793 T 19910321; JP 6364191 A 19910328; US 67521391 A 19910326