http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017226779-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/C08G65-44 |
filingDate | 2016-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7baed4d51422038824387526b222c58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c07bd1b55d5bcf1a695f2206b18eb6b |
publicationDate | 2017-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | JP-2017226779-A |
titleOfInvention | Method for producing polyphenylene ether powder |
abstract | An object of the present invention is to solve various problems in a solid-liquid separation process for preparing wet PPE particles, and to stably produce PPE powder having excellent quality. In a polymerization solution containing a good solvent for polyphenylene ether (PPE) and a catalyst, a phenolic compound is oxidatively polymerized to obtain a PPE mixture, a PPE mixture, and a poor solvent for PPE , Water is added to a precipitation tank having a stirrer and mixed to precipitate PPE to obtain a slurry liquid containing PPE particulates, and to separate the slurry liquid into wet PPE particles and filtrate. A total amount of good solvent, poor solvent and water in the wet PPE particles is 44 to 72% by mass with respect to 100% by mass of the wet PPE particles, and the appearance of PPE in the wet PPE particles The manufacturing method of polyphenylene ether powder characterized by the density of 0.2-0.5 g / cm <3>. [Selection figure] None |
priorityDate | 2016-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 246.