http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102298521-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-24 |
| filingDate | 2019-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-102298521-B1 |
| titleOfInvention | Recovery method for direct polyol from polyethylene terephthalate wastes |
| abstract | The present invention relates to a method for recovering a liquid polyol through a process of chemically recycling polyethylene terephthalate waste. In more detail, depolymerization in which polyethylene terephthalate and excess glycols are reacted with a catalyst is carried out to form an intermediate, and a chelating agent is added in the process of recovering the residual glycols in the depolymerization process by distillation under reduced pressure to function of the catalyst It is to provide a manufacturing method that can directly obtain a low-viscosity liquid polyol with controlled molecular weight by stopping the |
| priorityDate | 2019-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.