| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1b93b85bc9098b3371d49632cc7d8e9b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0eeec33ab13c076b313531fe45d673b0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C2001-03517
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-0051
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-158
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-3022 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-3225 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-305
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-035 |
| filingDate |
1999-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1374cb10e4e390963604b6805838f1c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dabd35489ba3f1aa8a492c8f64c07883 |
| publicationDate |
2000-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0038012-A1 |
| titleOfInvention |
Photographic element containing a dir coupler |
| abstract |
The invention provides a photographic element comprising at least one emulsion layer comprising at least 50 mol% silver chloride, which layer comprises at least one DIR coupler in association with at least one image dye-forming coupler, characterised in that the relative reactivity ratio krel of at least one DIR coupler and an associated image coupler is less than or equal to 1.0, wherein krel = k1/k2; k1 = the second order rate constant for the reaction of DIR coupler with oxidised developer and k2 = the second order rate constant for the reaction of image coupler with oxidised developer. The DIR couplers when associated with image couplers such that the above condition is satisfied efficiently reduce development of silver halide emulsions containing at least 50 mol% silver chloride, there being a reduction in contrast providing a linear sensitometric curve over a good latitude with negligible speed penalty. |
| priorityDate |
1998-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |