| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0096 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D7-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B43-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-54 |
| filingDate |
1975-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1e576b05e3002cf2e2c3aa5e20dcdfb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88d09fbd2da93326fe1f2a26f6e80e35 |
| publicationDate |
1978-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4124582-A |
| titleOfInvention |
Process for the purification of azo pigments by stirring an aqueous, alkaline suspension of crude pigment |
| abstract |
A process for the purification of azo pigments, wherein the crude pigment is stirred for some time in an aqueous alkaline suspension in a pH range from 9 to 12, preferably from 11 to 12, at temperatures between 20° to 80° C and subsequently the crude pigment is filtered off and washed neutral. The pigments treated by this process show a clearer and more brilliant shade and are faster to bleeding when incorporated, for example, into a thermoplastic material than the untreated pigments. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5489672-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3378901-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0070521-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013169395-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4720541-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8329369-B2 |
| priorityDate |
1973-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |