http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0053662-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3a94280eed4ab9f59a14658ce4e6f708 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1010e3862914acdd087e73d76911ec6d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_510e3e34df50da4f3d88a9aef463e29d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 2000-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a41bb709b71f0c8dbf8fdd70ecfaec7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f92fb93e017c8c893045968e65722e15 |
| publicationDate | 2000-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-0053662-A1 |
| titleOfInvention | Process for producing polycondensate from polycarboxylic acid and polyamine |
| abstract | A process by which a polyamide, polyimide, or polyamide-imide capable of being easily purified after reaction, especially an aromatic polyamide (aramid), aromatic polyimide, or aromatic polyamide-imide, which is difficult to synthesize by direct polycondensation, is produced in high yield from a polycarboxylic acid and a polyamine by direct polycondensation with heating while inhibiting side reactions, e.g., one accompanied by a color change into black. An aromatic dicarboxylic acid, aromatic tetracarboxylic acid, or aromatic tricarboxylic acid is condensation-polymerized with an aromatic diamine using an arylboric acid, e.g., 3,4,5-trifluorophenylboric acid, as a polycondensation catalyst in the presence of either a mixed solvent comprising pentamethylbenzene and N-methylpyrrolidinone or a mixed solvent comprising m-terphenyl and N-butylpyrrolidinone to obtain a polyamide, polyimide, or polyamide-imide in high yield. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017069165-A1 |
| priorityDate | 1999-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 190.