http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107090141-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2201-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-098 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-098 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L27-06 |
| filingDate | 2017-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107090141-B |
| titleOfInvention | The preparation method of PVC heat stabilizer |
| abstract | The present invention relates to a kind of preparation method of PVC heat stabilizer, include the following steps: to mix tartaric acid solution with sodium hydroxide solution, 0.5h~2h is kept the temperature after being then heated to 50 DEG C~80 DEG C, then the temperature of mixed solution is adjusted to 60 DEG C~90 DEG C；Rare-earth salt solution is taken, is added drop-wise in mixed solution, until stopping being added dropwise, then proceeding to be stirred to react, then successively filtered, washed, dried, obtain PVC heat stabilizer when the pH value of solution is 6.5~7.5.The preparation method of PVC heat stabilizer of the invention, simple and easy, whole process reaction condition is mild, easily operated.The PVC heat stabilizer of the method for the present invention preparation is nontoxic, efficient, containing basic group and content of rare earth it is higher, it has excellent performance, when exclusive use can greatly prolong the heat-stable time of PVC compared to other organic acid rare earths, have good synergistic effect when sharing with other kinds of stabilizer. |
| priorityDate | 2017-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.