| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 |
| filingDate |
2001-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82eaa2d6d77ce6364bc0cffb3c8e8915
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20ac158f6cc2d85da821e0dcde76e21e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03b2a6adc14f979df955119e09412624 |
| publicationDate |
2002-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2002338671-A |
| titleOfInvention |
Polyester production method |
| abstract |
(57) [Problem] To provide a polyester of stable quality even when polyester waste is blended as a part of a raw material with a polyester low polymer in a continuous polyester production facility. An esterification reaction is performed using terephthalic acid and / or a derivative thereof and ethylene glycol as raw materials, and the obtained polyester low polymer is polycondensed to continuously produce a polyester. Is achieved by adding a polyester waste mainly composed of ethylene terephthalate into a final-stage esterification reaction vessel having a temperature of 260 to 280 ° C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2022063218-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7247433-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021072020-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021080779-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7072764-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021080777-A1 |
| priorityDate |
2001-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |