| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e001ac73af53ce7fb6bbbe075a31d0a8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82 |
| filingDate |
2014-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46f5dcaf75602e424901e89ede382e3f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95d7ca1bed25ffcfad08bbf03d770a93
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3c82a28f74b4296610f307b21838d4d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e00c3cdf82c7dc8f2d55d60c9ff86c6 |
| publicationDate |
2015-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-201520242-A |
| titleOfInvention |
Polyester manufacturing method |
| abstract |
According to the present invention, there is provided a process for producing a polyester which comprises producing an oligomer comprising a dicarboxylic acid diester by esterification or transesterification of a dicarboxylic acid or an ester-forming derivative thereof with an alcohol. And a step of obtaining a polyester as a molten polycondensate by melting and condensing the oligomer; and in the above two steps, at least in the step of melt-condensing the oligomer, the step of nitriding The oligomer is melt-condensed and condensed in the presence of titanium as a solid alkali particle having a titanate coating layer on the surface of the polycondensation catalyst to obtain a polyester as a molten polycondensate. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I797217-B |
| priorityDate |
2013-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |