| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B48-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0014
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0022 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-20 |
| filingDate |
1994-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6420c4b5b7ca7f60e8aba5b772303426
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d57e4a08cb96dbc178499339d008530c |
| publicationDate |
1995-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H07216255-A |
| titleOfInvention |
Method for producing β-phase linear, unsubstituted quinacridone pigment |
| abstract |
(57) [Summary] [Purpose] Providing a process for producing a β-phase linear, unsubstituted quinacridone pigment [Structure] A β-phase linear, unsubstituted quinacridone pigment is a) 2,5-dianilino Cleavage of terephthalic acid in polyphosphoric acid or a polyphosphoric acid ester to give quinacridone, b) fine quinacridone crude pigment by hydrolyzing quinacridone with water at a temperature of at least 40 ° C., preferably 60 to 100 ° C. Is mainly α- Phase), c) then optionally wet milling the fine quinacridone crude pigment according to b) to obtain the pre-pigment and d) then the crude pigment according to b) or the preceding c). 1 pigment It can be produced pollution-free by heating in an inert liquid medium at a temperature of 20 to 200 ° C. in the presence of an inorganic base in an amount of 0.1 to 1.5 times the weight of the crude pigment. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11269420-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11100521-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2000169745-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4526100-B2 |
| priorityDate |
1993-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |