Title (en)

COLOUR-DEVELOPING SUBSTANCES

Publication

EP 0284932 A3 19890607 (DE)

Application

EP 88104428 A 19880319

Priority

AT 77687 A 19870331

Abstract (en)

[origin: EP0284932A2] The invention relates to colour developing substances for colour reaction systems, consisting of colour developer and optionally solvents as well as further fillers and additives. These substances contain, as colour developers, aromatic hydrocarbon resins in acid or salt form modified with aromatic carboxylic acids.

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 0186354 A2 19860702 - APPLETON PAPER INC [US]
• [Y] DE 2735093 A1 19780216 - ASAHI DOW LTD
• [Y] DE 2653822 A1 19770608 - SUMITOMO NAUGATUCK
• [Y] DE 2543598 A1 19760422 - FUJI PHOTO FILM CO LTD
• [YD] DE 3324817 A1 19850117 - RUETGERSWERKE AG [DE]

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0284932 A2 19881005; EP 0284932 A3 19890607; EP 0284932 B1 19920506; AT 399126 B 19950327; AT A77687 A 19940815; AT E75667 T1 19920515; DE 3870695 D1 19920611; ES 2004322 A4 19890101; ES 2004322 T3 19930101; GR 3005110 T3 19930524; GR 890300003 T1 19890308

DOCDB simple family (application)

EP 88104428 A 19880319; AT 77687 A 19870331; AT 88104428 T 19880319; DE 3870695 T 19880319; ES 88104428 T 19880319; GR 890300003 T 19890308; GR 920401450 T 19920708