http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11255880-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95136e4276343dbae035a63330dabfc7 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02 |
| filingDate | 1998-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f1f591d806062732ac2a7beac59fd25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b266b6f7b599741b30cb557fa9c7c02b |
| publicationDate | 1999-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H11255880-A |
| titleOfInvention | Production method of copolyester |
| abstract | PROBLEM TO BE SOLVED: To provide a poly (ethylene isophthalate / ethylene terephthalate) system having a high molecular weight, excellent in color tone, heat resistance and impact resistance, and having good transparency, which is suitable for use as a gas barrier container. Provided is a method for producing a copolymerized polyester. SOLUTION: The molar ratio of ethylene isophthalate unit to ethylene terephthalate unit is 95/5 to 15/85. When producing a random copolymerized polyester, a number average molecular weight of an oligomer having a number average molecular weight of 2000 or less and phosphoric acid or an ester thereof in an amount of 1 × 10 -4 to 200 After performing the esterification reaction for at least 0.5 hours by adding in an amount of × 10 -4 mol, a specific amount of an antimony compound, a cobalt compound and a germanium compound is added as a polycondensation catalyst, and the number average molecular weight is 10,000 or more. The polycondensation reaction is performed until the reaction is completed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021033495-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6893793-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7084227-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005501926-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004051775-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113993948-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004123984-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002338674-A |
| priorityDate | 1998-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.