http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106832259-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2201-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-4006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L63-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L71-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-48 |
| filingDate | 2017-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106832259-B |
| titleOfInvention | A kind of preparation method for the fire retardant of polyphosphate that branch is double DOPO |
| abstract | The invention belongs to phosphonium flame retardant technical fields, and in particular to a kind of preparation method for the fire retardant of polyphosphate that branch is double DOPO.Under the protection of inert gas, 4,4'-Dihydroxybenzophenone reacts in anhydrous acetonitrile solvent with benzene phosphinylidyne dichloro, PhosphorodichloridicAcid Acid Phenyl Ester or two phosphoryl chloride phosphorus oxychloride of pentaerythritol diphosphate, until non-halogen hydrogen releases to obtain polymerism flame retardant intermediate.Intermediate, initiator are carried out heating with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide again to react, temperature is 130-160 DEG C；Melting graft reaction occurs at this time, reaction temperature is reduced to 50-70 DEG C, ethyl alcohol is added and is stirred at reflux, obtains fire retardant after filtering drying.The present invention overcomes synthesized micromolecule intermediates first in traditional handicraft, and then the difficulty for leading to not acquisition high polymerization degree fire retardant in polymerization process since steric hindrance is larger is carried out again, synthesized fire retardant has higher molecular weight and narrower molecular weight distribution, it is good with the compatibility of matrix, it is not easy to migrate, there is good durability. |
| priorityDate | 2017-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.