http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-404867-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/C09B5-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-02 |
| filingDate | 1933-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1934-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-404867-A |
| titleOfInvention | Manufacture of vat-dyestuffs |
| abstract | Vat-dyes are prepared by alkali fusion of a compound obtainable by condensing an aceanthrenequinone with an aromatic, aliphatic or alicyclic 1.2-diamino compound and which may be represented by the formula:-- <PICT:0404867/IV/1> wherein R stands for the aromatic, aliphatic or alicyclic residue of the 1.2-diamino radicle. The products, which are of unknown constitution, may be halogenated. In examples: (1) the condensation product of aceanthrenequinone with 1.2-diaminobenzene is fused with alcoholic potash to give a green vat dye; (2) the condensation product of aceanthrenequinone with 2-chloro-4.5-diaminotoluene (probably a mixture of isomers) is similarly fused to give a green vat dye; (3) the alkali fusion of the condensation product of aceanthrenequinone with ethylenediamine gives a green dye; (4) the alkali fusion of the condensation product of aceanthrenequinone and 1-methyl-3.4-diaminobenzene gives a green dye, and similarly also the condensation products of aceanthrenequinone with 1.2-diaminonaphthalene and with 2.3-diaminofluorenone; (5) the condensation product of methylaceanthrenequinone (obtainable from 2-methylanthracene and oxalyl chloride) and 1.2-diaminobenzene on alkali fusion yields a green dye; (6) the product of (1) above is brominated in nitrobenzene; it dyes green tints. |
| priorityDate | 1932-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.