| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-181
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-49 |
| filingDate |
1999-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5dee4950904561a287e64f9eb8a52c9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de3fa7f6f5397e579e3530df4f83b4f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ddf3faf10f8f5bee72067e5ed352c60 |
| publicationDate |
2001-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2001114880-A |
| titleOfInvention |
Polyester production method |
| abstract |
PROBLEM TO BE SOLVED: To provide a method for efficiently producing a polyester (PBT) having a low carboxyl terminal group concentration and improved hydrolysis resistance. SOLUTION: The process for producing a polyester of the present invention comprises the steps of: using a combination of a titanium compound and a tin compound or a single system of a tin compound as a catalyst; A method for producing a polyester in which an esterification reaction or a transesterification reaction is performed with a diol having a diol as a main component, followed by a polycondensation reaction, wherein an alkaline compound is added at an optional stage before the completion of the polycondensation reaction. Features. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001114879-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100604349-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2832794-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2013146281-A1 |
| priorityDate |
1999-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |