http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20090124958-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-26 |
| filingDate | 2009-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff188447984a6b355ee8b458d0c9947e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_382ae1298615c7a5a08d3bffc8730890 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13a1695d847c81a1ddfce96ba0f70444 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91c9f2b0f9a5621504dfcd60bdf53c75 |
| publicationDate | 2009-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20090124958-A |
| titleOfInvention | Method of producing polyamide |
| abstract | In a batch production method of a polyamide formed by directly polycondensing a diamine component containing a paraxylylenediamine and a dicarboxylic acid component using a batch reactor equipped with a splitting machine, a method for producing economically and qualityly advantageously to provide.n n n A diamine component and a dicarboxylic acid component containing 70 mol% or more of xylylenediamine containing 20 mol% or more of paraxylylenediamine in the absence of a real solvent using a batch reactor equipped with a partial condenser A method for producing a polyamide formed by direct polycondensation, the method for producing a polyamide comprising the following steps.n n n (1) A step of adding a dicarboxylic acid component to the reaction tank, followed by pressurizing the pressure in the reaction tank to a pressure of 0.1 MPaG or more.n n n (2) A step of continuously or intermittently adding the diamine component to the dicarboxylic acid component while maintaining the pressure in the reaction tank at a pressure of 0.1 MPaG or more and maintaining the uniform flow state of the entire reaction system.n n n (3) A step of reducing the pressure in the reaction tank to an atmospheric pressure or lower at a pressure drop rate of 0.1 to 1.0 MPa / hour after the addition of the diamine component is completed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20150082240-A |
| priorityDate | 2008-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 113.