http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0338271-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-485 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-48 |
| filingDate | 1989-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77a9a78c5e647a0a8418ead869a1646c |
| publicationDate | 1989-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0338271-A2 |
| titleOfInvention | Method of preparing carboxy derivatives of polyphenylene ethers |
| abstract | Carboxylated polyphenylene ethers are prepared by reaction of the polyphenylene ether with an ester such as a 4-alkyl or 4-aryl ester of trimellitic anhydride. The methyl, ethyl and o-carbophenoxyphenyl esters are preferred; the latter caps the polyphenylene ether in addition to carboxylating it. The reaction takes place in the presence of a triaryl phosphite, at a temperature in the range of about 225-350°C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0440939-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0504560-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0440939-A3 |
| priorityDate | 1988-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 102.