Global Patent Index - EP 0052729 A2

EP 0052729 A2 19820602 - Colour-formers developing sheets.

Title (en)

Colour-formers developing sheets.

Title (de)

Farbbildner entwickelnde Beschichtungen.

Title (fr)

Couches révélatrices de formateurs de couleurs.

Publication

EP 0052729 A2 19820602 (DE)

Application

EP 81108066 A 19811008

Priority

DE 3044119 A 19801124

Abstract (en)

They are composed of (a) an isobutyraldehyde-phenolic resin novolac, (b) a solid aliphatic alcohol of from 16 to 18 carbon atoms and optionally (c) waxes customary for carbon printing. The proportion of (b) is from 10 to 200 % by weight based on (a).

Abstract (de)

Farbbildner entwickelnde Beschichtung aus (a) einem Isobutyraldehyd-Phenolharz-Novolak, (b) einem festen aliphatischen Alkohol mit 16 bis 18 C-Atomen und gegebenenfalls (c) für Carbondruck üblichen Wachsen. Der Anteil an (b) beträgt 10 bis 200 Gew.%, bezogen auf (a).

IPC 1-7

B41M 5/12

IPC 8 full level

B41M 5/155 (2006.01)

CPC (source: EP)

B41M 5/155 (2013.01)

Designated contracting state (EPC)

AT CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0052729 A2 19820602; EP 0052729 A3 19820811; DE 3044119 A1 19820624

DOCDB simple family (application)

EP 81108066 A 19811008; DE 3044119 A 19801124