http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63256947-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_663cad2cddb9415ae5ba8d9c99803cda |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-48523 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-485 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-12 |
| filingDate | 1987-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_679d2b1f2a50a1426f2a7bf69a1aba65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8012cce6a9c8d770c88f7dd60f7d8057 |
| publicationDate | 1988-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63256947-A |
| titleOfInvention | Direct positive silver halide photographic emulsion |
| abstract | PURPOSE:To obtain the titled emulsion having the high sensitivity and the low fogging level by incorporating a specified org. desensitizer together with a cyanine dyestuff having a reduction voltage of -0.40--1.50V and an oxidation voltage of +0.55-+1.80V in the titled emulsion. CONSTITUTION:The titled emulsion contains the cyanine dyestuff having the reduction voltage of -0.40--1.50V and the oxidation voltage of +0.55-+1.80V, and at least one of the org. desensitizer shown by formula I. In formulas I, R is alkyl group, at least one of R1-R5 groups is an electron attractive group having Hammett's value sigma of >=0.21, and the remainders of R1-R5 groups are hydrogen atom. or alkyl group, Z is an atomic group necessary for completing a 5 or 6 membered nitrogen-contg. heterocyclic ring, X<-> is an anion. Thus, the titled emulsion having the high sensitivity and the low fogging is obtd. |
| priorityDate | 1987-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.