http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2020415-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f5bcdd02d1a77b4686034135020f3197 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G5-0696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G5-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-003 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G5-06 |
| filingDate | 2008-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11c84d14f198171d1d3ef4d55edfd0cf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5139e43cb44a2e640bdcbfae73fd7f2c |
| publicationDate | 2009-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2020415-A1 |
| titleOfInvention | Method for producing alpha-form titanylphthalocyanine and electrophotographic photoreceptor comprising alpha-form titanylphthalocyanine |
| abstract | The present invention relates to a method for producing an α-form titanylphthalocyanine represented by the formula (1):n nwhich has a peak at a Bragg angle (2θ ± 0.2°) in X-ray diffraction spectrum with CuK α-ray: 7.5°, 10.2°, 12.6°, 13.2°, 15.1°, 16.3°, 17.3°, 18.3°, 22.5°, 24.2°, 25.3° and 28.6°, wherein the method includes steps of: n(I) subjecting a crude titanylphthalocyanine having an α-form polymorph to an acid pasting treatment, and then filtering and washing with water to give a water-containing wet cake, and then subjecting the wet cake to drying and crushing to give a low crystalline titanylphthalocyanine; n(II) adding a dispersing aid to the low crystalline titanylphthalocyanine and dispersing at room temperature, in DMF, to prepare a polymorph; and n(III) filtering, washing, and drying under a reduced pressure. n The present invention consists in a provision of a method for conveniently producing the α-form titanylphthalocyanine having a peak at a Bragg angle (2θ ± 0.2°) in X-ray diffraction spectrum with CuK α-ray: 7. 5°, 10. 2°, 12. 6°, 13.2°, 15.1°, 16.3°, 17.3°, 18.3°, 22.5°, 24.2°, 25.3° and 28.6°, wherein a crude titanylphthalocyanine having an α-form polymorph is used as a starting material, as well as a provision of an electrophotographic photoreceptor comprising a charge generating material of the α-form titanylphthalocyanine which has excellent photosensitive characteristics. |
| priorityDate | 2007-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.