http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-457106-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/C09B1-343 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-34 |
| filingDate | 1935-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1936-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-457106-A |
| titleOfInvention | Manufacture of acid dyestuffs of the anthraquinone series |
| abstract | Acid anthraquinone dyes are made by reacting 1-amino-4-halogenanthraquinone-2-sulphonic acid with amino aralkyl-alkylsulphones (prepared for instance by treating a nitrobenzyl chloride with an alkylsulphinic acid and reducing the product). In examples sodium - 1 - amino - 4 - bromanthraquinone-2-sulphonate is condensed with o-, m- and p-aminobenzylmethylsulphone (prepared by condensing o-, m- and p-nitrobenzylchlorides respectively with sodium methylsulphinate and reducing), o-, m- and p-aminobenzylethylsulphones (the o- and p-derivatives are prepared by condensing o- and p-nitrobenzyl chlorides respectively with sodium ethylsulphinate) and o-aminobenzylpropylsulphone. Samples have been furnished under Sect. 2 (5) of dyes prepared by condensing sodium 1-amino-4-bromoanthraquinone-2-sulphonate with (1) 1-(methyl sulphonyl)-2-(4<1>-aminophenyl) ethane (this is prepared by condensing 1-bromo-2-(4<1>-nitrophenyl)-ethane with sodium methyl sulphinate and reducing), (2) 3-amino-6-methoxybenzylmethylsulphone (similarly derived from 3-nitro-6-methoxybenzyl chloride). The products dye animal fibres blue shades. The Specification as open to inspection under Sect. 91 comprises as examples the subject-matter of the samples schedule and in addition examples wherein sodium-1-amino-4-bromanthraquinone - 2 - sulphonate is condensed with (1-(ethylsulphonyl)-2-(4<1>-aminophenyl)-ethane, 3-amino - 4 - methoxybenzylmethylsulphone (similarly derived from 3-nitro-4-methoxybenzyl chloride), and 3-amino-6-methoxybenzylethylsulphone (similarly derived from 3-nitro-6-methoxybenzyl chloride). This subject-matter does not appear in the Specification as accepted. |
| priorityDate | 1934-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.