| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ddadb999be4f451dfc44d8e359d8f6a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B48-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0027 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B33-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B48-00 |
| filingDate |
1992-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1cb3219369a6c353a7f0f595ecaa25b7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79f398fb7dd231894c09e618b83ac168 |
| publicationDate |
1999-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-100216158-B1 |
| titleOfInvention |
Process for preparing quinacridone pigment |
| abstract |
6,13-dihydroquinacridone or a derivative thereof is oxidized at elevated temperature in the presence of a base, a dimethyl sulfoxide medium and a quinone catalyst, the resulting pigment solution is poured in to precipitate the quinacridone pigment and then the desired quinacridone. A method for producing a quinacridone pigment, comprising isolating a product. |
| priorityDate |
1991-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |