http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02283730-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-14 |
| filingDate | 1989-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d2b5ca0670ef66d3fb987436cf89705 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f57b5673e3c55a10ca3487a103757398 |
| publicationDate | 1990-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02283730-A |
| titleOfInvention | Polyamide-imide elastomer and its production |
| abstract | PURPOSE: To obtain the title elastomer excellent in flexibility, transparency, heat resistance and mold release and having high mechanical strengths by polym erizing a specified polyamideimidedicarboxylic acid with a glycol under specified conditions, distilling off unreacted matter and post-polymerizing the product. n CONSTITUTION: A polyamideimidedicarboxylic acid (A) of a number-average mol.wt. of 400-3000 is formed from at least either a 10C or higher lactam or an aminocarboxylic acid or a mixture (a) thereof with at most 4 pts.wt. as much caprolactam and at least one member (b) selected from among a polyamide-imide dicarboxylic acid of a number-average mol.wt. of 400-3000 and an anhydride thereof. A mixture of this acid with at least one glycol selected from a polyoxyalkylene glycol of a number-average mol.wt. of 500-4000 and an α,ω-dihydroxyhydrocarbon in a ratio of 10:90-65:35, is polymerized at 150-300°C while keeping the water content of the reaction system at 0.1-1.0wt.%. After unreacted starting material is distilled off from the reaction system, port- polymerization is conducted at 200-300°C to give the desired elastomer. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6391983-B1 |
| priorityDate | 1989-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.