http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015086274-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/C08G63-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-83 |
| filingDate | 2013-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_864889ebca14f5d8979cada7784eb863 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1aacbb4ed65df70c8172554b353eb9b6 |
| publicationDate | 2015-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2015086274-A |
| titleOfInvention | Polyester manufacturing method |
| abstract | Disclosed is a method for producing a polyester produced by supplying a dicarboxylic acid and a glycol in a lump to improve the dispersibility of titanium dioxide and producing a titanium dioxide-containing polyester having good filterability during spinning. A method for producing a polyester produced by collectively supplying a dicarboxylic acid and a glycol to an esterification step to obtain a polyester low polymer and then polycondensing the low polymer in a polycondensation step, i) in the esterification step, an alkali compound is added in an amount of 0.001 to 0.020% by weight, based on the total weight of the polyester produced by polycondensation of dicarboxylic acid and glycol, and (ii) the In the polycondensation step, based on the total weight of the polyester produced by polycondensation of dicarboxylic acid and glycol, the phosphorus compound is 0.0005 to 0.0025% by weight considering the phosphorus atom, and the titanium dioxide is 0.01 to A method for producing a polyester, comprising adding 2.0% by weight. [Selection figure] None |
| priorityDate | 2013-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.