http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4612400-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-71 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-71 |
| filingDate | 1985-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1986-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_547e60847f46bfeb5e68de71a51fb32b |
| publicationDate | 1986-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4612400-A |
| titleOfInvention | Autoxidation of bis(ortho dialkyl-phenoxy)benzophenones |
| abstract | A method is described for autoxidizing a novel class of bis(ortho dialkyl-phenoxy)benzophenones directly to their corresponding dianhydrides. The method comprises autoxidizing the benzophenones in a solution of an aliphatic monocarboxylic acid having 3 to 8 carbon atoms with oxygen in the presence of a heavy metal oxidation catalyst and a promoter at a temperature of at least about 120° C. to form the dianhydride. n The dianhydrides are used in the preparation of organic high temperature polymers such as polyetherimides. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5073552-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4891167-A |
| priorityDate | 1985-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 192.