| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3e9445e5e3626f36e932c6451a928250 |
| 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/C09B48-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B33-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 |
| filingDate |
1992-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc787bb4f51614ec8288a253f8fd2ac0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32bd6e18d582ef73f940caffafcf8b5c |
| publicationDate |
1993-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2076281-A1 |
| titleOfInvention |
Oxidation process for preparing quinacridone pigments |
| abstract |
OXIDATION PROCESS FOR PREPARING QUINACRIDONE PIGMENTS Abstract of the Disclosure A process for preparing quinacridone pigments comprising oxidizing 6,13-dihydro-quinacridone or derivatives thereof at elevated temperatures in the presence of a base, dimethyl sulfoxide medium and a quinone catalyst, drowning the resulting pigmentsolution to precipitate the quinacridone pigment and isolating the desired quinacridone product. |
| priorityDate |
1991-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |