http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H07224164-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-26 |
| filingDate | 1993-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_272f296d83574e8cae55eb1b3a9c4ece http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_798f249b7d6cbf7f79e0b24c020e8cd4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b262a7c5d9394e4f97df73936f25eedf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb942610eae9829dfae3e0b8960ea779 |
| publicationDate | 1995-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H07224164-A |
| titleOfInvention | Method for producing polyamide resin |
| abstract | (57) [Summary] [Structure] At the time of producing a crystalline polyamide containing an aliphatic diamine having 4 to 14 carbon atoms and terephthalic acid as main components, a 1% sulfuric acid solution at 25 ° C. is added by a primary condensate polymerization process. A method for producing a primary condensate having a relative viscosity of 1.04 to 2.5 by increasing the degree of polymerization, and adding a phosphorus-based catalyst before the completion of the primary condensate polymerization step, and performing the primary condensation. A method for producing a polyamide, comprising a pre-concentration step before the physical polymerization step. [Effect] By adopting the production method of the present invention, not only polyamide resins having various terephthalic acid components can be efficiently produced, but also color tone, tensile strength, tensile elongation, It is possible to provide a polyamide resin having improved flexural strength, flexural modulus, chemical resistance and the like. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9428612-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020056419-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009524711-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011026396-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010534258-A |
| priorityDate | 1993-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 130.