| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-057
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-672 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-057
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-672 |
| filingDate |
2017-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2eccc52f8e35f03b673bfc0995fdaca0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a6eea2216dd7748cdba343449740d40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed1fb8dbd1cf1966f7cfdb09e047593d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1611f172bfe2cb9e8071802aaec24952 |
| publicationDate |
2019-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20190054507-A |
| titleOfInvention |
Method for preparing poly(ether ester) copolymer |
| abstract |
The present invention relates to a process for producing a polyetherester copolymer, and more particularly, to a process for producing a polyetherester copolymer capable of controlling the entrainment of a starting material in an ester exchange reaction step. According to the present invention, the phenomenon of entrainment of dicarboxylate (or dicarboxylic acid) as a starting material in the removal of water or alcohol as a reaction by-product can be remarkably reduced without changing the existing polyetherester copolymer plant . Therefore, according to the present invention, it is possible to improve the yield of the polyetherester copolymer and to prevent contamination and corrosion of the production facility of the polyetherester copolymer. |
| priorityDate |
2017-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |