http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20020077874-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 |
| filingDate | 2001-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2002-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20020077874-A |
| titleOfInvention | PROCESS FOR PRODUCTION OF HIGH-PURITY BIS-β-HYDROXYETHYL TEREPHTHALATE |
| abstract | (1) producing a reaction product containing bis-β-hydroxyethyl terephthalate by esterifying joterephthalic acid with ethylene glycol and / or ethylene oxide, (2) the reaction product according to step (1), Mixing with ethylene glycol as necessary to prepare a solution containing bis-β-hydroxyethyl terephthalate as a solute and ethylene glycol as a solvent, and then removing ions to form a deionized solution of the solution, (3 ) Distillation of the deionized solution of step (2) to distill off the low boiling point material to produce zobis-β-hydroxyethyl terephthalate, (4) step of (2) zobis-β-hydride A method for producing high-purity bis-β-hydroxyethyl terephthalate, which is subjected to a step of molecular distillation of hydroxyethyl terephthalate to distillation of bis-β-hydroxyethyl terephthalate in this order. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102504202-B1 |
| priorityDate | 2000-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.