http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01207322-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03627f82d4edc6567f9627df6efdde5d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-26 |
| filingDate | 1988-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a0cfb3808ce8c4041cfb899d32cd364 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e832eb99a26e476e0ba28a5e24111240 |
| publicationDate | 1989-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01207322-A |
| titleOfInvention | Polycarbonamide of bis(2-(-carboxyphenyl) hexafluoroisopropyl)diphenyl ether |
| abstract | PURPOSE: To obtain a polycarbonamide of bis[2-(4-carboxyphenyl) hexafuoroisopropyl)diphenyl ether with specified repeating units and logarithmic viscosity, which can be melt-molded at a relatively low temp., has superior mechanical and chemical properties, good resistances to light, heat and soiling, and which is useful for molded articles such as fibers. n CONSTITUTION: A diamine [such as 2,2-hexafluoro-bis(4-aminophenyl)propane], and water and THF as solvent are added into a reactor. Then, 4,4'-bis[2-(4- chlorocarbophenyl)hexafluoroisopropyl]diphenyl ether is added dropwise in the presence of sodium hydorogencarbonate and allowed to react with each other while stirring. Thereafter, the formed polymer is precipitated and separated by adding a plenty of water, to obtain the objective polymer having repeating units expressed by the formula (wherein R is a bivalent group such as an aromatic part having 1-4 carbon-6-membered rings each with benzenoid unsaturation, a 1-20C aliphatic part and a 4-18C alicyclic aliphatic part; (n) is a sufficient large number) and having logarithmic viscosity of 0.2 dl/g measured at 25°C in dimethylacetamide in the concn. of 0.5 wt.% in the polymer. n COPYRIGHT: (C)1989,JPO |
| priorityDate | 1987-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.