http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100855694-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-88 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 |
| filingDate | 2004-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2008-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100855694-B1 |
| titleOfInvention | Method for producing polyethylene terephthalate excellent in heat resistance |
| abstract | Disclosed is a method for producing polyethylene terephthalate which is excellent in heat resistance and particularly useful as a raw material for industrial synthetic fibers. The polyethylene terephthalate production method comprises the steps of esterifying ethylene glycol and terephthalic acid to prepare an oligomer; And polycondensing the resulting oligomer, adding a phosphorus-based heat stabilizer at the end of the polycondensation reaction, or adding polycarbodiimide immediately before the end of the polycondensation reaction. Here, the phosphorus heat stabilizer is selected from the group consisting of phosphoric acid, phosphorous acid, polyphosphoric acid, trimethyl phosphate, triethyl phosphate, trimethyl phosphine, triphenyl phosphine and mixtures thereof, and the end and polycondensation reaction of the polycondensation reaction It is preferable that phosphorus heat-resistant stabilizer and polycarbodiimide are respectively added just before completion | finish. n n n Heat resistance, polyethylene terephthalate, polymerization, phosphorus heat stabilizer, polycarbodiimide |
| priorityDate | 2004-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.