http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-566741-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c3c752d079fbd643672ca32f8525edf0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8eb553aca713e6c3a94477265fba4d56 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B47-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B47-26 |
| filingDate | 1943-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1945-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-566741-A |
| titleOfInvention | Manufacture of sulphur-containing dyestuffs |
| abstract | Sulphur-containing dyestuffs, capable of dyeing cotton from a sodium sulphide vat, are obtained by heating a sulphonyl chloride of a metal-containing or metal-free phthalocyanine with a thioamide containing at least one -CS.NHR group, wherein R may represent H, alkyl (including allyl) or aryl. Specified sulphonyl chlorides are copper phthalocyanine-tetra-(4)-sulphonyl chloride, copper phthalocyanine-tri-(4)-sulphonyl chloride, metal-free phthalocyanine-tri-sulphonyl chloride and a copper phthalocyanine polysulphonyl chloride obtained by the action of phosphorus pentachloride in nitrobenzene at 100-110 DEG C. on a sulphonation product obtained by heating copper phthalocyanine with 25 per cent oleum for 12 hours at 70 DEG C. and then for 2 hours at 85 DEG C. Specified thioamides are thioacetamide, thioacetanilide, thiobenzamide, thiobenzanilide, phenyldithiobiuret, thiourea, N-allyl-thiourea, N - methyl - thiourea, N : N1 - dimethyl - thiourea and N : N1 : N1 - trimethyl - thiourea. In examples: (1) copper phthalocyanine-tetra-(4)-sulphonyl chloride (obtainable by heating tetra-potassium copper phthalocyanine - tetra - (4) - sulphonate with phosphorus pentachloride in nitrobenzene) is heated for 2 hours with thiourea at 170-175 DEG C.; (2) the thiourea in (1) is replaced by thiobenzanilide; (3) metal-free phthalocyanine-trisulphonyl chloride (obtainable by heating with phosphorus pentachloride in nitrobenzene the sodium salt of the metal-free phthalocyanine trisulphonic acid obtained by direct sulphonation of metal-free phthalocyanine) is heated for 2 hours with thiourea at 170-175 DEG C.; (4) the thiourea in (3) is replaced by phenyldithiobiuret; (5), (6) and (7), metal-free phthalocyanine-trisulphonyl chloride is heated for 1/2 hour with (5) N-methyl-thiourea, (6) N : N1 - dimethyl - thiourea, (7) N : N1 : N1-trimethyl-thiourea at 120-125 DEG C.; (8) metal-free phthalocyanine-trisulphonyl chloride is heated for 1/4 hour with thioacetanilide at 110-115 DEG C.; (9) metal-free phthalocyanine trisulphonyl chloride is heated for 1/4 hour with thioacetamide at 130-135 DEG C.; (10) copper phthalocyanine polysulphonyl chloride (obtained as above) is heated for 1 hour with thiourea at 170-175 DEG C. N-Allyl-thiourea is obtained by the action of ammonia on allyl isothiocyanate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-1544470-B1 |
| priorityDate | 1943-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.