http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107880255-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-3492 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-353 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-866 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-3492 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-353 |
| filingDate | 2016-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107880255-B |
| titleOfInvention | Manufacturing method of optical film grade polyester chip |
| abstract | The invention discloses a method for manufacturing an optical film grade polyester chip. The method comprises the following specific steps: mixing ethylene glycol solution containing titanium ion catalyst, PTA and EG to prepare slurry, carrying out low-temperature esterification reaction on a continuous polyester device, adding optical brightening agent and uvioresistant agent by adopting antimony-titanium composite catalyst, and carrying out pre-polycondensation and final polycondensation to obtain the optical film grade polyester chip. The optical film grade polyester chip obtained by the invention has high transparency, stable color and excellent performance. |
| priorityDate | 2016-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.