| 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/C07D471-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B48-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate |
1997-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32bd6e18d582ef73f940caffafcf8b5c |
| publicationDate |
1997-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0806456-A2 |
| titleOfInvention |
Oxidation process for preparing quinacridone pigments |
| abstract |
The present invention relates to a process of preparing quinacridone pigments in their specific crystal forms by oxidizing a premilled 6,13-dihydroquinacridone corresponding to the quinacridone pigment in a basic, aqueous reaction medium utilizing hydrogen peroxide as the oxidizing agent. The inventive process is an environmentally friendly process which yields a polymorphically homogeneous product in excellent yield. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004007623-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1083176-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004063284-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6869472-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0894832-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0894832-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7161007-B2 |
| priorityDate |
1996-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |