EP 0222271 A3 19890524 - HEAT-DEVELOPING PROCESS AND COLOUR-PHOTOGRAPHIC RECORDING MATERIAL THEREFOR
Title (en)
HEAT-DEVELOPING PROCESS AND COLOUR-PHOTOGRAPHIC RECORDING MATERIAL THEREFOR
Publication
Application
Priority
DE 3539996 A 19851112
Abstract (en)
[origin: US4740446A] Compounds corresponding to formula I are suitable for use as thermal development and diffusion promoting agents for the heat development process. The said compounds enable higher color transfer densities to be obtained and/or the development time to be reduced. <IMAGE> (I) wherein R1, R2 denote alkyl, cycloalkyl, aralkyl, aryl or acyl and Z denotes a group for completing a saturated heterocyclic ring containing 5 to 11 ring members.
IPC 1-7
IPC 8 full level
G03C 1/498 (2006.01); G03C 8/40 (2006.01)
CPC (source: EP US)
G03C 8/408 (2013.01 - EP US)
Citation (search report)
- [A] EP 0131161 A2 19850116 - KONISHIROKU PHOTO IND [JP]
- [A] EP 0119615 A2 19840926 - FUJI PHOTO FILM CO LTD [JP]
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0222271 A2 19870520; EP 0222271 A3 19890524; DE 3539996 A1 19870521; JP S62116934 A 19870528; US 4740446 A 19880426
DOCDB simple family (application)
EP 86115108 A 19861031; DE 3539996 A 19851112; JP 26786386 A 19861112; US 92579286 A 19861031