http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1325428-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_08e5126e16ad1c7aae67ba760e92e943 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-158 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S430-156 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D257-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-30511 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D257-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C8-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-305 |
| filingDate | 1987-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1993-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb9729d5106b50404d65de29e38e9429 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f749414fd79636dd5c74761e3320f97 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbb18f835075b03bc483dbacf2808c62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c119941213b543185cd29848bc1b11d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d65ad9396e1417e572494d666a7694c |
| publicationDate | 1993-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1325428-C |
| titleOfInvention | Photographic system utilizing a compound capable of providing controlled release of a photographically useful group |
| abstract | PHOTOGRAPHIC SYSTEM ABSTRACT OF THE DISCLOSURE There is described a photographic system wherein de-velopment of an exposed photosensitive element with an aqueous alkaline photographic developing composition is effected in the presence of a compound represented by the formula wherein R is -OH, -OR4, -NH2 -NHR5 or -NR4R6; R1 is hydrogen, -NH2, alkyl, substituted alkyl, aryl or substituted aryl; R2 and R3 each independently is hydrogen, alkyl, aralkyl or aryl; R4 is a protecting group which can be removed in the presence of a base; R5 is an activating group which can render the neighboring hydro-gen atom acidic; R6 is an electron withdrawing group which is capable of stabilizing the negative charge on the nitrogen atom which is produced upon removal of R4 upon contact with alkali; and PHOTO is a photographically useful group. The compounds provide controlled release of the photo-graphically useful group by a base-catalyzed elimination when contacted by the aqueous alkaline processing composition. |
| priorityDate | 1986-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 138.