http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0689685-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b73bb5b611ad02b686a7967bc6ca3412 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C8-4033 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C8-40 |
| filingDate | 1994-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4462ab7c6fa5ba1a2ba5b881bce33649 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d707e146a7adf189e75f8924849a1cf3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bcb4a1794e1c0e9c487b212be991d6a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b4017874df05386e86e52b2232ebdbb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38d38714261b793e09454321c64316ec |
| publicationDate | 1996-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0689685-A1 |
| titleOfInvention | Ballasted leuco dyes and photothermographic element containing same |
| abstract | Heat-developable photothermographic materials capable of providing stable color images of high resolution. These materials comprise a support bearing a layer of an image-forming composition comprising: (a) a photosensitive silver halide, (b) an organic silver compound, (c) a reducing agent for silver ion, and (d) a binder. The reducing agent comprises a ballasted leuco dye compound. The ballasted leuco dye compound comprises a compound of the general formula: D-B wherein D represents the reduced chromophore of a thermally mobile dye; and B represents an organic group that reduces the thermal mobility of D in the aforementioned binder, said organic group B capable of being oxidatively cleaved. The molecular weight of B must not be so high that the resulting amount of D in the emulsion layer is insufficient to yield a dye image having a reflection optical density of at least 0.3 or a transmission optical density of at least 0.2. Advantages of the heat-developable photothermographic materials of this invention include the following: (1) capability of providing of pure, clear, and stable positive dye images at high photographic speed; (2) low silver requirements; and (3) reduced background stain. |
| priorityDate | 1993-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 127.