http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020032171-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20d3042eb4ea7c9afd525aa89373349d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-0281 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0281 |
| filingDate | 2019-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3499c42de4ee588b0d442ecc8206a104 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73ba5ec62e55e12c6b05a65669504ffe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e04ff48dc65d4b9b0b279a87cbfa5600 |
| publicationDate | 2020-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2020032171-A1 |
| titleOfInvention | Method for purifying and method for producing polyarylene sulfide |
| abstract | Provided are a method for purifying polyarylene sulfide (PAS) with which it is possible to efficiently reduce alkali metal halides and carboxyalkylamino-group-containing compounds in the PAS by treating the alkali metal halides and carboxyalkylamino-group-containing compounds in the PAS under a lower pressure without using a strong acid, and a method for producing PAS having a low level of alkali metal halides and carboxyalkylamino-group-containing compounds in the PAS. More specifically: a method for purifying PAS, the method having a step for removing a solvent from a crude reaction product that contains PAS and is obtained by reacting a polyhaloaromatic compound and a sulfidizing agent in an organic polar solvent and obtaining a crude-PAS-containing slurry, a step for bringing the crude-PAS-containing slurry into contact with water and an oxygen-atom-containing solvent to form the crude PAS into porous particles having a specific surface area of 30 m2/g or higher, and a step for bringing the resulting porous particles into contact with carbonated water; and a method for producing PAS, the method having the aforementioned steps. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019006923-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7318843-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021117795-A1 |
| priorityDate | 2018-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 219.