http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H09188751-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14b02369b953bf4ebd31190c8cb63473 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-189 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82 |
| filingDate | 1996-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c652fb8953e0ff77fd7f6c82b9c42cff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e4f8560a43bdd6c3bf28eac560cef75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97331aa3abdde73be41bcca1574d751a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1ff734e7328b50385f862b4aa314efc |
| publicationDate | 1997-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H09188751-A |
| titleOfInvention | Method for producing polyethylene naphthalate |
| abstract | (57) Abstract: It is an object of the present invention to produce polyethylene naphthalate free from diethylene glycol by-products, generation of minute foreign matters, coloring of polymer during polymerization. When a polyethylene naphthalate is produced by a transesterification method from a dicarboxylic acid dialkyl ester mainly containing dimethyl 2,6-naphthalenedicarboxylate and a glycol mainly containing ethylene glycol, a glycol-soluble transesterification catalyst ( Example, Ca, Mg, M n organic carboxylic acid salt, etc.) and a DEG inhibitor (potassium acetate) in the presence of a transesterification reaction, and then a phosphorus compound (eg, phosphate ester) and a polycondensation catalyst (antimony oxide etc.) Add and allow polycondensation reaction. At that time, these additives are added so that the compounding amounts thereof satisfy specific conditions. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018062656-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023058632-A1 |
| priorityDate | 1996-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.