http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0629913-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-30529 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-384 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-384 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-305 |
| filingDate | 1994-06-16^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5e5691f146dcb9dec07b94cb3ad4f8c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b751a14d4375ccab31789930ac5a284 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_664530f6d6b316826135577d9995c7bc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d739375c169ab26485163b8b5fb97dc |
| publicationDate | 1994-12-21^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0629913-A1 |
| titleOfInvention | Photographic elements containing magenta couplers and process for using same |
| abstract | A photographic element contains a light-sensitive silver halide layer having associated therewith a coupler which is a pyrazolone compound with a coupling-off substituent at the -4-position, said compound having the formula:n n wherein each R¹ is independently a substituted or unsubstituted alkylsulfonyl or arylsulfonyl group; each R² and R³ is independently a substituent; R⁴, R⁵, and R⁶ are independently hydrogen or substituted or unsubstituted alkyl groups; m and n are independently 0 or 1 but both are not 0; x1 and x2 are independently 0 to 5; and y is 0 to 3; provided that each of R³, R⁴, R⁵, and R⁶ is selected such that the calculated log P of the thiophenol corresponding to the substituent at the 4-position of the pyrazolone is at least 4. The photographic element provides an improved combination of low continued coupling together with a magenta hue exhibiting a long wavelength of maximum absorption. |
| priorityDate | 1993-06-17^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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