http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103755983-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F116-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L29-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G81-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-32 |
| filingDate | 2013-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103755983-B |
| titleOfInvention | A kind of polyvinyl alcohol microparticles and preparation method thereof |
| abstract | The invention provides a kind of polyvinyl alcohol microparticles and preparation method thereof, first polyvinyl alcohol dissolution is obtained polyvinyl alcohol water solution, in described polyvinyl alcohol water solution, add oxygenant subsequently and fully stir, hydroxyl in two vinyl alcohol units that in described polyvinyl alcohol backbones, head connects is oxidized to chain rupture after aldehyde radical, the obtained aqueous solution containing polyvinyl alcohol chain rupture product; Then the described aqueous solution containing polyvinyl alcohol chain rupture product being dropped to pH is in the organic solvent of 1 ~ 2, obtain mixing solutions, stir, there is crosslinking reaction between described polyvinyl alcohol chain rupture product in described mixing solutions and form spheroid i.e. obtained polyvinyl alcohol microparticles, the preparation method of polyvinyl alcohol microparticles of the present invention is simple, preparation process environment-protecting asepsis, obtained polyvinyl alcohol microparticles novel structure and purity is high. |
| priorityDate | 2013-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.