http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004507560-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B2009-165 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B9-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82 |
| filingDate | 2001-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2004-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2004507560-A |
| titleOfInvention | Purification method of polyester precursor |
| abstract | Polyester oligomers derived from terephthalic acid and at least one glycol, ie, a diol, are purified, ie, decolorized, by hydrogenating the oligomer to convert colored impurities into colorless compounds, thereby improving the color of the oligomer. A method for purifying a polyester precursor is disclosed. Colored impurities are present in the terephthalic acid used to make the oligomer and are formed during the production of terephthalic acid. Purified / bleached oligomers obtained by the disclosed method can be used to produce high molecular weight polyesters. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005519148-A |
| priorityDate | 2000-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 105.