http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-943163-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dc2f7134efa50484bb359fda73782848 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-526 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-52 |
| filingDate | 1961-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1963-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-943163-A |
| titleOfInvention | Process for the manufacture of halogenated hydroxy-aminoanthraquinones |
| abstract | Chlorinated or brominated a : a -dihydroxy-a : a -diaminoanthraquinones are made by treating with chlorine or bromine (a) an a : a -dihydroxy - a : a - diaminoanthraquinone containing a sulphonic acid group in b -position and then splitting-off the sulphonic acid group by heating the product with a reducing agent in aqueous alkali-metal hydroxide solution, or (b) an a : a -dihydroxy-a : a -diaminoanthraquinone in which at least one amino group has the formula <FORM:0943163/C3/1> where n is 1, 2, 3, 4 or 5 and then converting the group (1) to a primary amino group by heating the product with an aqueous mineral acid. Examples are given. The dyes dye polyester fibres in blue shades. Specification 787,379 is referred to. |
| priorityDate | 1960-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.