| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d0bc14697bfe2291a34832d1b7fdd67 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 |
| filingDate |
1999-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9a15aba4368b1b4cf5115d5644cc201
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_654bd09a17ae42a3f91ee3babbfc540e |
| publicationDate |
2001-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1120394-A1 |
| titleOfInvention |
METHODS FOR THE PREPARATION OR PURIFICATION OF BIS-$g(b)-HYDROXYETHYL TEREPHTHALATE |
| abstract |
A method which comprises heating an aromatic polyester together with bis-β-hydroxyethyl terephthalate and/ornlow condensates thereof to conduct predecomposition, and reacting the predecomposition mixture with ethylene glycol to convertnthe terephthalic acid components contained in the mixture into bis-β-hydroxyethyl terephthalate and/or low condensates thereof;na method which comprises bringing the solution composition obtained by the above process into contact with a cation exchangernand/or an anion exchanger to thereby obtain bis-β-hydroxyethyl terephthalate lowered in ion content; and a method which comprisesnsubjecting a bis-β-hydroxyethyl terephthalate containing mixture lowered in ion content to preliminary evaporation or distillationnto thereby distill away low-boiling compounds, and subjecting the resulting mixture to evaporation or distillation in vacuo to therebynobtain pure bis-β-hydroxyethyl terephthalate having a total content of cations and anions of 15 ppm or below. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1510514-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1510514-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10273332-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3124186-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1254888-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1254888-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3092324-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1306364-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3105236-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6642350-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1306364-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3106134-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3092323-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023104790-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3105235-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020156966-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3130278-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7306738-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03051815-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023110538-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020156965-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022171877-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1234812-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1234812-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022263237-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7030264-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3130804-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021140016-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7211193-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015171432-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021122095-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021122094-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2002354493-B2 |
| priorityDate |
1999-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |