http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4029680-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-503 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-503 |
| filingDate | 1975-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1977-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1729f0db19ee61a2490a34540106137d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e3b878a12cc38ffb5adc86f3e08ae73 |
| publicationDate | 1977-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4029680-A |
| titleOfInvention | Process for the preparation of diamino-dihydroxy anthraquinone disperse dyestuffs |
| abstract | The invention relates to the preparation of anthraquinone disperse dyestuffs from aqueous solutions containing anthraquinone-sulphonic acid mixtures, especially from appropriate waste waters by treating such solutions with chloric acid/hydrochloric acid or their salts or activated halogene, isolating the halogenoanthraquinones thereby obtained, subjecting them to dinitration and warming the dinitrohalogenoanthraquinones thus obtained with elementary sulphur in sulphuric acid optionally in the presence of boric acid. The reaction products are β-halogenated diaminodihydroxyanthraquinones which are suitable for the dyeing of polyesters and polyamides in blue shades with good fastness properties. |
| priorityDate | 1974-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 127.