http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H1135664-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 |
| filingDate | 1997-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f0ca265feaaf1420d52359adc8c102e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_028927a139a78d1f5d1029769171743e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b35bc9d16dd69ac55ff1c329fcea5882 |
| publicationDate | 1999-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H1135664-A |
| titleOfInvention | Method for producing terephthalic acid and polyester |
| abstract | [PROBLEMS] To provide a TPA for producing a polymer having a stable color tone with less coloring and a method for producing a polyester having a stable color tone. The amount of 9-fluorenone-2,6-dicarboxylic acid is 10 ppm or less, the amount of 4-carboxybenzaldehyde is 300 ppm or less, and the light transmittance at 340 nm of an alkaline solution (concentration: 7.5 g / dl) ( (Quartz cell, optical path length: 10 mm) is 87% or more, And a terephthalic acid having a light transmittance (quartz cell, optical path length: 10 mm) at 340 nm of an alkaline solution of terephthalic acid (concentration: 7.5 g / dl) after heating at 280 ° C. for 3 hours of 70% or more. . |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005105262-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010018781-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006152252-A |
| priorityDate | 1997-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.