http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-960029370-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-87 |
| filingDate | 1995-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1996-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-960029370-A |
| titleOfInvention | Method for producing polyamideimide resin by direct polymerization |
| abstract | An object of the present invention is to improve the low heat resistance, low melt flowability which is pointed out as a problem in the known production method of PAI resin, and to provide a method for producing a high molecular weight PAI resin having high economical efficiency by simplifying the manufacturing process.n n n The present invention condensation reaction of an aromatic tricarboxylic acid anhydride with a diamine in a polar solvent to prepare a diimide dicarboxylic acid, using an acyl halide agent as a catalyst to form an intermediate having excellent reactivity at a low temperature, and then a nucleophilic diamine The present invention relates to a method for producing a high molecular weight PAI resin by direct polymerization. According to the present invention, a high-molecular weight PAI resin having excellent heat resistance and melt flowability can be produced in a short time of less than 10 hours at a relatively low temperature of 100 ° C. or less, and the PAI resin produced by the present invention has a reduced solubility and tar phase. Since there is no color and physical property deterioration due to the mixing of materials, it is not only used as a thermoplastic molding material, especially a core heat-resistant structural material of the high-tech industry, but also widely applied to heat-resistant paints, heat-resistant sheets, heat-resistant adhesives, heat-resistant fibers and heat-resistant films . |
| priorityDate | 1995-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.