Global Patent Index - EP 0088581 B1

EP 0088581 B1 19870513 - WHITE LIGHT HANDLEABLE PHOTOGRAPHIC MATERIALS

Title (en)

WHITE LIGHT HANDLEABLE PHOTOGRAPHIC MATERIALS

Publication

EP 0088581 B1 19870513 (EN)

Application

EP 83301090 A 19830301

Priority

GB 8206716 A 19820308

Abstract (en)

[origin: EP0088581A1] Many photographic materials must be handled under special lighting conditions in order to prevent exposure of the material. The use of large concentrations of bleachable light absorbing layers over the photosensitive emulsion tends to leave an undesirable residual stain. Tile inclusion of a specific class of low intensity reciprocity failure inducers to silver halide emulsions enables the emulsions and their photographic articles to be safely handled under white light conditions. The class of compounds has the generic formula: <CHEM> g

IPC 1-7

G03C 1/36; G03C 5/16

IPC 8 full level

G03C 1/00 (2006.01); G03C 1/06 (2006.01); G03C 1/36 (2006.01); G03C 5/16 (2006.01)

CPC (source: EP)

G03C 1/36 (2013.01); G03C 5/16 (2013.01)

Citation (examination)

T.H. JAMES: "The theory of the photographic process", 4th edition 1977, Macmillan, page 265

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL

DOCDB simple family (publication)

EP 0088581 A1 19830914; EP 0088581 B1 19870513; AR 244893 A1 19931130; AU 1209683 A 19830915; AU 561406 B2 19870507; BR 8301100 A 19831122; CA 1246377 A 19881213; DE 3371572 D1 19870619; ES 520324 A0 19840816; ES 8407214 A1 19840816; GR 78071 B 19840926; JP H0629944 B2 19940420; JP S58166342 A 19831001; MX 161970 A 19910313

DOCDB simple family (application)

EP 83301090 A 19830301; AR 29230983 A 19830307; AU 1209683 A 19830307; BR 8301100 A 19830307; CA 422109 A 19830222; DE 3371572 T 19830301; ES 520324 A 19830304; GR 830170706 A 19830307; JP 3722283 A 19830307; MX 19651583 A 19830308