Global Patent Index - EP 0851289 A3

EP 0851289 A3 19981223 - Colour developer

Title (en)

Colour developer

Title (de)

Farbentwickler

Title (fr)

Développateur couleur

Publication

EP 0851289 A3 19981223 (DE)

Application

EP 97122660 A 19971222

Priority

  • DE 19654183 A 19961223
  • DE 19719117 A 19970506

Abstract (en)

[origin: EP0851289A2] Photographic colour developer containing a hydroxylamine derivative of formula R - N(OH) - L - A (I) in which L = linear or branched alkylene; A = carboxyl, sulpho, phosphono, hydroxyl, amino, ammonium, carbamoyl, sulphamoyl or alkylsulphonyl group or a phosphinic acid residue; and R = H or -L-A, wherein the (I) is added to the colour developer in the form of a reaction solution of the starting materials used for preparing the (I).

IPC 1-7

G03C 7/413

IPC 8 full level

G03C 7/413 (2006.01); G03C 5/26 (2006.01)

CPC (source: EP)

G03C 7/413 (2013.01); G03C 5/264 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0851289 A2 19980701; EP 0851289 A3 19981223

DOCDB simple family (application)

EP 97122660 A 19971222