http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105153410-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-28 |
| filingDate | 2015-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105153410-B |
| titleOfInvention | A kind of preparation method of flame retardant polyester ethoxylated polyhydric alcohol |
| abstract | The invention discloses a kind of preparation method of flame retardant polyester ethoxylated polyhydric alcohol, including the following steps: one, pyromellitic dianhydride and polyalcohol are in N 2 Protection is lower to be mixed, and is warming up to 120~140 DEG C, is reacted 2~3h, be warming up to 220~240 DEG C, react 2~3h, finally filters 2.5~3h, be down to 60~80 DEG C of blowings to temperature；Two, the said goods and phosphorus oxychloride are added in reaction flask, and reaction is finally warming up to 100~120 DEG C of 3~4h of heat preservation, cooling, filtering, drying in 60~80 DEG C of progress 3h；Three, in the said goods and amines catalyst investment polyether reactant kettle, decompression puts into propylene oxide to reaction kettle, 100 DEG C~130 DEG C are to slowly warm up to, pressure is in 0.07~0.4MPa in kettle, at this temperature and pressure, 1~4h is reacted, is then vacuumized, is down to 90 DEG C or less filters pressing dischargings to temperature.The present invention provides the preparation methods of flame retardant polyester ethoxylated polyhydric alcohol to have great raising for the intensity of polyurethane foamed material since the polyester ether of high functionality is introduced；The flame retardant property of material then can be improved in the introducing of phenyl ring and phosphorus. |
| priorityDate | 2015-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.