| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G5-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G5-0657
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03G5-0659 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03G5-06 |
| filingDate |
1991-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fcfea883b4444570c029898950764abb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7ad8a758aa5b77ea7847c3cd626377f |
| publicationDate |
1991-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0443566-A1 |
| titleOfInvention |
Method for preparing coating compositions containing photoconductive perylene pigments |
| abstract |
An electrophotographic coating composition comprising finely-divided photoconductive perylene pigment dispersed in a solvent solution of polymeric binder is prepared by the steps of (1) milling a perylene pigment with milling media comprising inorganic salt and non-conducting particles under shear conditions in the substantial absence of the solvent to provide pigment having a particle size up to 0.2 micrometer, (2) continuing the milling at higher shear at a temperature up to 50 o C, to achieve a perceptible color change of the pigment particles, (3) rapidly reducing the temperature of the milled pigment by at least 10 o C, (4) separating the milled pigment from the media and (5) mixing the milled pigment with the solvent solution of polymeric binder to form the coating composition. A very high degree of dispersion of photoconductive perylene pigment in solvent solution of polymeric binder is achieved by this method. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0554357-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0554357-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0861878-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3440059-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3440058-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10672560-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1716208-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0711812-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5693808-A |
| priorityDate |
1990-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |