http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-286233-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b04f5b6a02051c94d6eaf190b751ed2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-73 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-73 |
| filingDate | 1928-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1928-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-286233-A |
| titleOfInvention | Process for producing photo-prints and photo-copies |
| abstract | 286,233. I. G. Farbenindustrie Akt.- Ges. Feb. 28, 1927, [Convention date]. Processes employing light-sensitive dye-components.-The layer is sensitized with a salt of 1: 2-naphthoquinone-4-sulphonic acid, and is developed after exposure, for example under a tracing, with an organic compound containing a free amino group, which yields a positive directly. Examples are described wherein (1) a paper is saturated with a solution of potassium 1: 2-naphthoquinone-4-sulphonate, and (2) paper, glass, or celluloid is coated with a solution of gelatine containing this salt, development after exposure being effected with a solution of aniline hydrochloride or 1-methyl-2: 4-diaminobenzene, both of which yield red images, or with a solution of 1-amino-4-oxybenzene which yields a violet image. |
| priorityDate | 1927-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.