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EP 0052729 A3 19820811 - COLOUR-FORMERS DEVELOPING SHEETS

Title (en)

COLOUR-FORMERS DEVELOPING SHEETS

Publication

EP 0052729 A3 19820811 (DE)

Application

EP 81108066 A 19811008

Priority

DE 3044119 A 19801124

Abstract (en)

[origin: EP0052729A2] 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).

IPC 1-7

B41M 5/12

IPC 8 full level

B41M 5/155 (2006.01)

CPC (source: EP)

B41M 5/155 (2013.01)

Citation (search report)

[Y] EP 0019151 A1 19801126 - BASF AG [DE]
[Y] GB 2033417 A 19800521 - FUJI PHOTO FILM CO LTD
[A] DE 2152285 A1 19720504 - MITSUI TOATSU CHEMICALS
[A] DE 2338288 A1 19740207 - FUJI PHOTO FILM CO LTD
[A] US 4115327 A 19780919 - KIKUGA TOYOJI, et al

Designated contracting state (EPC)

AT CH DE FR GB IT

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