http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2134793-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3bf96311fde209e9fad008b4b8616252 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-037 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B57-004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D17-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D11-322 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-22 |
| filingDate | 2008-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5321523d8f743090fb001556ccb06c27 |
| publicationDate | 2009-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2134793-A1 |
| titleOfInvention | Method for directly producing fine-particle diketopyrrolopyrrol pigments |
| abstract | The invention relates to a method for directly producing fine-particle 1,4-diketopyrrolo[3,4-c]pyrrols of formula (I), wherein R1a, R1b, R2a and R2b independently represent hydrogen, halogen, C1-C4 alkyl, C1-C4 aIkoxy, cyano or phenyl, said compounds being characterised by a maximum frequency distribution between 20 and 120nm. According to the method, nitriles are reacted with succinic acid esters or lactames or enamines in an alkali medium to form a pigment alkali salt, and then protolysis of the pigment alkali salt is carried out. Said method is characterised in that an effective quantity of a pigment dispersant of formula (II) is added during the protolysis of the pigment alkali salt. in formula (II), Q is a radical of an organic pigment from the group of perinone, quinacridone, quinacridonquinone, anthanthrone, indanthrone, dioxazine, diketopyrrolopyrrol, indigo, thioindigo, thiazineindigo, isoindoline, isoindolinone, pyranthrone, isoviolanthrone, flavanthrone or anthrapyrimidine pigments. |
| priorityDate | 2007-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.