http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020015878-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dbdfa36b677f4ef61245ca725011e221 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-14 |
| filingDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c07bd1b55d5bcf1a695f2206b18eb6b |
| publicationDate | 2020-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2020015878-A |
| titleOfInvention | Method for producing polyphenylene ether resin |
| abstract | An object of the present invention is to provide a method for producing a low molecular weight polyphenylene ether resin which is economically excellent while improving the recovery of the low molecular weight polyphenylene ether resin. A polyphenylene ether poor solvent is added to a solution in which a polyphenylene ether resin having a molecular weight distribution is dissolved in a good solvent of the polyphenylene ether, and a part (a) of the polyphenylene ether resin is precipitated to form a slurry liquid. A step of obtaining a mixed solution by filtering a part (a) of the polyphenylene ether resin from the slurry liquid, and adding a water to the mixed solution to form a good solvent phase containing a good solvent of polyphenylene ether; Liquid-liquid separation into a poor solvent of polyphenylene ether and a mixed phase containing water, and after performing liquid-liquid separation, concentrating the good solvent phase to obtain a residual solution; and Mixing and precipitating a part (b) of the polyphenylene ether resin. Production method. [Selection diagram] None |
| priorityDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 152.