http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010132764-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ad2cd796f8c4dcb425ddcc68707d3444 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-90 |
| filingDate | 2008-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96980480ffab6fa1f71e66ae471ac126 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d261ec66bfb8b14e7fd93c87726857a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1307230812ff1d48258c4acc0a440691 |
| publicationDate | 2010-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2010132764-A |
| titleOfInvention | Polyester manufacturing method |
| abstract | PROBLEM TO BE SOLVED: To provide a method for producing a polyester having a low intrinsic viscosity and a low content of a cyclic trimer as a main component of a cyclic oligomer. SOLUTION: A method for producing a polyester, wherein a crude polyester obtained by a polycondensation reaction of a dicarboxylic acid component and a glycol component is subjected to wet heat treatment at 190 to 260 ° C. in a water-containing inert gas flow, This is a method for producing a polyester in which the intrinsic viscosity change rate before and after the wet heat treatment is 0.10 or less, and the content of the cyclic trimer in the polyester is 0.5 wt% or less after the wet heat treatment. [Selection figure] None |
| priorityDate | 2008-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.