| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B62-517
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B47-26 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B47-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B62-517 |
| filingDate |
1979-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6cd358c9ff814390b05621bf39654eb |
| publicationDate |
1980-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4237050-A |
| titleOfInvention |
Process for the preparation of water-soluble phthalocyanine dyestuffs |
| abstract |
A process for the preparation of water-soluble phthalocyanine dyestuffs containing a fiber-reactive group of the vinylsulfone series, by reacting phthalocyanine sulfochlorides, optionally containing sulfo groups, with a primary or secondary amine which contains a fiber-reactive group of the vinylsulfone series, and optionally with a further primary or secondary amine in common manner, wherein according to the invention a pyridine-sulfonic acid or a pyridine-carboxylic acid is used as catalyst instead of the pyridine, as used previously. The use of pyridine-sulfonic acids or pyridine-carboxylic acids--which results in the same good reaction rate and yield as the use of pyridine in the preparation of phthalocyanine dyestuffs--avoids the considerable drawbacks occurring in the preparation on an industrial scale, which drawbacks are caused by the toxic properties and the unpleasant smell of the pyridine. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5856472-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TR-28664-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0712907-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4425162-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4745187-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5516901-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102241892-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5302708-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102241893-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102241893-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0648815-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5606092-A |
| priorityDate |
1978-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |