http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1308733-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-4853 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B23-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-48523 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-485 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B23-06 |
| filingDate | 1971-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1308733-A |
| titleOfInvention | Direct positive silver halide photographic material |
| abstract | 1308733 Direct-positive photographic silver halide material FUJI PHOTO FILM CO Ltd 3 May 1971 [4 May 1970] 12771/71 Heading G2C A direct-positive silver halide photographic material comprises a silver halide emulsion layer and at least one adjacent layer, at least one of said layers containing at least one sensitizing dye of the formula:- Wherein R and R' are each optionally substituted alkyl; L is a methine chain; Z represents the atoms necessary to form a heterocyclic nucleus having a 5- or 6-membered N-containing ring; X<SP>-</SP> is an anion; and n is 0 or 1, and at least one water-soluble polymer having a repeating unit of the formula:- wherein R 1 is H or methyl; R 2 is -OH, -OCOR 3 , -COOR 3 , -CN, -CONH 2 -CONHR 3 , -CONR 3 R 4 , phenyl, -N(CH 3 ) COR 5 , -COOH or p-Mo 3 S-phenyl, wherein M is H or potassium; R 3 and R 4 are each 1-4c alkyl; R 5 is H, methyl or ethyl; and x is a positive integer of 50-100. The dye is preferably present at 1-200 mg per mole of silver halide and the polymer preferably has a molecular weight of 5, 000 to 500, 000 and is present at 0À5g-50g per mole of silver halide. This material has a high sensitivity to reversal and little or no residual colour density due to the dye. The material may also contain known desensitizers. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2218464-A |
| priorityDate | 1970-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.