http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1341092-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb0a7b16a31bf7bc8b903ed8b717aab6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-695 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-695 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-56 |
| filingDate | 1971-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1341092-A |
| titleOfInvention | Photographic dry copying material |
| abstract | 1341092 Photo-sensitive materials and transfer processes AGFA-GEVAERT AG 11 May 1971 [14 May 1970] 14160/71 Heading G2C A process for producing transferred images comprises imagewise exposing a photo-sensitive material comprising a layer of a transferable pyrazolin-5-one having at least one H atom or amino-phenylamine group in the 4-position and which may have a carbo-or hetero-cyclic ring fused at the 3 and 4 positions and a light-sensitive organic compound which on exposure reacts with the pyrazolinone to form a non-transferable product, contacting the exposed layer with a receiving sheet and heating to transfer the unreacted pyrazolinone which reacts with a compound in the receiving sheet to produce a coloured image. Specified light-sensitive compounds are azides and bisimidazoles. The pyrazolinone is preferably of formula:- wherein R 1 is hydrogen, alkyl, alkenyl, aryl, cycloalkyl or heterocyclic, R 2 is hydrogen, alkyl, alkenyl, aryl, cycloalkyl, heterocyclic, hydroxyl, alkoxy, amino or carboxyalkyl, R 3 is hydrogen, alkyl, alkenyl, aryl, amino, amido, alkoxy or aralkyl, and R 4 is hydrogen or 4-aminophenylamino and R 1 and R 2 may complete a heterocyclic or carbocyclic ring. The azide may be a heterocyclic or aryl azide, a carboxyl azide or sulphonyl azide and preferably an azidoacridine or azidoquinoline. The bisimidazole may be one of those specified in Specification 1047569. The layer may contain a sensitizer such as cyaninedyes or a binder such as a vinyl or acrylic polymer or copolymer, a cellulose ether or ester, gelatine, alginic acid or a starch ether. Specified reactants in the receiving sheet are gold, platinum or silver soaps, silver salts as in Specification 1111492, diazonium salts or oxidized colour developers to produce a coloured image. Alternatively, a receiving sheet may be dispensed with if the reactant is coated in a separate layer of the light-sensitive material; preferably below the light-sensitive layer. |
| priorityDate | 1970-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.