http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111607074-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-866 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-672 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-672 |
| filingDate | 2020-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111607074-B |
| titleOfInvention | A kind of method for preparing terephthalic acid-ethylene glycol-isosorbide copolyester catalyzed by antimony-titanium bimetal |
| abstract | The invention relates to the technical field of polyester, and discloses a method for preparing terephthalic acid-ethylene glycol-isosorbide copolyester catalyzed by antimony-titanium bimetal, comprising the following steps: using terephthalic acid, ethylene glycol, Isosorbide is used as raw material, antimony-titanium bimetallic catalyst and stabilizer are added, and after esterification and polycondensation, terephthalic acid-ethylene glycol-isosorbide copolyester is prepared; the antimony-titanium bimetallic catalyst includes antimony catalysts and titanium catalysts. By using antimony-titanium bimetallic catalyst, the invention not only combines the advantages of a single antimony-based catalyst and a titanium-based catalyst, but also overcomes their respective deficiencies, has high catalytic activity, fewer by-products, and the prepared polyester has a better hue. , and lower antimony content, more environmentally friendly. |
| priorityDate | 2020-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 85.