http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5713999-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B48-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0036 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D471-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B48-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-20 |
| filingDate | 1996-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1998-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e10073801db4a51b2323185ddf72e2d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b81b37fc4ee88d74697bfc7c2f0c417 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05580e918a300a4a42d1e213a843e4c4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e19642d880c78167bfef2b4670dac802 |
| publicationDate | 1998-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5713999-A |
| titleOfInvention | Incorporation of pigment derivatives in quinacridone processes |
| abstract | This invention relates to a process for the preparation of quinacridone pigments by n (a) heating, at a temperature of about 80° C. to about 145° C., a reaction mixture containing n (i) 2,5-dianilinoterephthalic acid, a 2,5-dianilino-3,6-dihydroterephthalic acid ester, and/or a derivative thereof, n (ii) about 3 to about 15 parts by weight, per part of component (a)(i), of a dehydrating agent, and n (iii) about 0.1 to about 15 percent by weight, based on component (a)(i), of one or more non-quinacridone pigments, n with the proviso that if component (a)(i) is a 2,5-dianilino-3,6-dihydroterephthalic acid ester or a derivative thereof, reaction step (a) additionally comprises an oxidation step; n (b) drowning the reaction mixture from step (a) by adding said reaction mixture to about 3 to about 15 parts by weight, per part of component (a)(i), of a liquid in which the quinacridone pigment is substantially insoluble; n (c) isolating the quinacridone pigment; n (d) optionally, conditioning the quinacridone pigment; and n (e) optionally, blending the resultant pigment with one or more quinacridone derivatives. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6068695-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004171014-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6494948-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5972099-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7335771-B2 |
| priorityDate | 1996-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 267.