http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012188557-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e1bf06f55de84b78abc9a057807f7eb |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-28 |
| filingDate | 2011-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23cf1b177de8234821a1f9cd55a396e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f592cd294eaec037b3af7a0c875dc41 |
| publicationDate | 2012-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2012188557-A |
| titleOfInvention | Method for producing polyamide |
| abstract | Disclosed is a method for producing a polyamide with a narrow molecular weight distribution, a suppressed color tone, and a small amount of triamine as a by-product. A method for producing a polyamide according to the present invention includes the following steps (i) to (iii) in this order. Step (i): A step of mixing a dicarboxylic acid as a monomer and a diamine at a temperature equal to or higher than the melting point of the lower melting point monomer to obtain a mixed solution. Step (ii): The mixture obtained in step (i) is produced at a temperature lower than the melting point of the polyamide to be produced by producing a salt by reaction of dicarboxylic acid and diamine and producing a low polymer by polymerizing the salt. The process of crushing the produced | generated salt and low polymer while performing, and obtaining the crushing mixture of a salt and a low polymer. Step (iii): A step of increasing the molecular weight of the crushed mixture obtained in step (ii) by melt extrusion at a temperature of {(melting point of the resulting polyamide) + 10 ° C.} to 350 ° C. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114702665-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10000607-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014141978-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022075249-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20150128696-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015005201-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9540485-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20160029016-A |
| priorityDate | 2011-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.