| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f37f4ff2c8f3ec7c2dd049ff046cc2ac |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B68-4253
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0017
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0051
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0086
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0034
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D17-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D17-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0038
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-101
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-322 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D11-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D17-00 |
| filingDate |
2010-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bddfb4b8d345459e31216979eb3435a8 |
| publicationDate |
2015-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102639646-B |
| titleOfInvention |
Preparing and dispersing surface-modified colour pigments |
| abstract |
A method of preparing a pigment comprising the steps of: a) providing a mixture including: DEG a pigment selected from the group of pigments comprising at least 50 wt% of C.I. Pigment Violet 23, C.I. Pigment Red 146, C.I. Pigment Red 176, C.I. Pigment Red 177, C.I. Pigment Violet 19 and C.I. Pigment Orange 13 based on the total weight of the pigment; DEG alkyl nitrile; and DEG at least one acid selected from the group consisting of sulfuric acid and chlorosulfuric acid, with the acid present in the mixture in amount of more than 2 wt% based on the total weight of the pigment; b) heating the mixture for more than 2 hours to a temperature of at least 70 DEG C; and c) filtering the mixture and washing the filtrand with a washing liquid containing water until the filtrate has a pH between 4 and 7. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed. |
| priorityDate |
2009-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |