http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4923792-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b73bb5b611ad02b686a7967bc6ca3412 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-49854 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-498 |
| filingDate | 1989-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1990-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea2a0016db80cfbe6d4e69785628a12f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed21891af68ad32d1cd6a480c0e25be5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c4a1cde288c7dc07717b31b2f6f669e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7950270624960d9bd9462af61b046cde http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cd6bfaa8d840eb2e31a03e94c920918 |
| publicationDate | 1990-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4923792-A |
| titleOfInvention | Color photothermographic elements |
| abstract | A photothermographic element comprising: (A) a coating comprising a support bearing a photothermographic medium, the medium comprising a light sensitive silver halide in reactive association with a silver salt of an organic acid and a color generating reducing agent which is a leuco compound which is oxidizable by silver ions into a colored dye of the general formula: <IMAGE> in which: n=0, 1 or 2, R1 represents H, CN, lower alkyl of 1 to 5 carbon atoms, aryl or COOR6 in which R6 is lower alkyl of 1 to 5 carbon atoms or aryl, R2 and R3 independently represent CN, NO2, COOR6, SO2R6, CONHR6 in which R6 is as defined above or R2 and R3 together represent the necessary atoms to form a 5- or 6-membered carbocyclic or heterocyclic ring having ring atoms selected from C, N, O and S atoms, whch carbocyclic or heterocyclic rings possess at least one conjugated electron withdrawing substituent, R4 and R5 independently represent H, CN or lower alkyl of 1 to 5 carbon atoms or together represent the necessary atoms to complete a 5- or 6-membered carbocyclic ring, and Ar represents: (a) a thienyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms, (b) a furyl group which may be substituted with one or more lower alkyl groups of 1 to 5 carbon atoms or (c) a phenyl group which may be substituted with one or more groups selected from halogen, hydroxy, lower alkyl of 1 to 5 carbon atoms, lower alkoxy of 1 to 5 carbon atoms, NR7R8 in which R7 and R8 are independently selected from H, lower alkyl group of 1 to 5 carbon atoms which may possess substituents selected form CN, OH, halogen and phenyl, and phenyl group optionally substituted with substituents selected from OH, halogen, lower alkyl of 1 to 5 carbon atoms or lower alkoxy of 1 to 5 carbon atoms or R7 and R8 together represent the necessary atoms to complete a morpholino group, or said phenyl group may be part of a larger ring structure comprising two or more rings which may be aromatic or heterocyclic containing up to 20 ring atoms selected from C, N, O and S; and (B) a topcoat comprising a polyvinyl alcohol resin in contact with said coating. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5492803-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5492805-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5492804-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5928857-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5238792-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5240809-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5262272-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5290660-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5275927-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5696289-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5705676-A |
| priorityDate | 1987-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 554.