EP 0499045 B1 19960731 - Colour-former preparations
Title (en)
Colour-former preparations
Title (de)
Farbbildner-Zubereitungen
Title (fr)
Préparations chromogèniques
Publication
Application
Priority
DE 4103966 A 19910209
Abstract (en)
[origin: EP0499045A1] Colour-former preparations composed of A) a core of solid particles of a colour-former, B) a first coating of a water-soluble non-ionic polymer and C) a second coating of a cross-linked polymer, processes for the production of these preparations and their use for the production of heat- and pressure-sensitive recording materials, and recording materials which contain these preparations.
IPC 1-7
IPC 8 full level
B41M 5/132 (2006.01); B41M 5/165 (2006.01); B41M 5/30 (2006.01); B41M 5/323 (2006.01)
CPC (source: EP US)
B41M 5/132 (2013.01 - EP US); B41M 5/165 (2013.01 - EP US); B41M 5/30 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0499045 A1 19920819; EP 0499045 B1 19960731; BR 9200419 A 19921013; DE 4103966 A1 19920813; DE 59206829 D1 19960905; JP H04310787 A 19921102; US 5346931 A 19940913
DOCDB simple family (application)
EP 92100814 A 19920120; BR 9200419 A 19920207; DE 4103966 A 19910209; DE 59206829 T 19920120; JP 1883592 A 19920204; US 82537492 A 19920124