http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103694476-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0254 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0222 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0281 |
| filingDate | 2013-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103694476-B |
| titleOfInvention | A kind of preparation method of polyphenylene sulfide |
| abstract | The present invention relates to synthesis of polymer material field, more specifically a kind of preparation method of polyphenylene sulfide, it comprises the following steps: by Nan 2 s9Hn 2 o, N-Methyl pyrrolidone, reaction promoter join in polymeric kettle, DEG C dehydration of logical nitrogen replacement air post-heating to 180, and dehydration rate is 80 ~ 95%; Add the N-crassitude solution containing santochlor in step (1) after dehydration in system, at 190 ~ 230 DEG C, react 3 ~ 8h, after reaction terminates, obtain mixed slurry; Filtered by mixed slurry, filter cake joins in the pure water boiled, agitator treating 90Hz supersound process 15 ~ 30min, repeated washing 2 ~ 3 times, after oven dry PPS resin.Advantageous effect of the present invention is as follows: adding of Sulfothiorine can obviously improve product form and aspect, even if in system, water content is more (dehydration rate is 80%), temperature of reaction is higher; Ultrasonic washing effectively can be removed macromolecular chain in reaction process and bend, is wound around be mingled with inorganic salt impurities. |
| priorityDate | 2013-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.