http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108034015-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F114-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F114-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38 |
| filingDate | 2017-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108034015-B |
| titleOfInvention | Preparation method of polyvinyl chloride |
| abstract | The invention provides a preparation method of polyvinyl chloride, which adopts vinyl chloride monomer, dispersant, initiator, pH value regulator and solvent with specific proportion and controls the time of adding terminator into polymerization reaction, on one hand, the polymerization monomer is polymerized fully along the main chain, the generation of branched chain is reduced, the quality of vinyl chloride product is effectively ensured, and the phenomena of high fish eye, low aging whiteness and the like in the product are prevented; on the other hand, the residual amount of the dispersing agent, the initiator and the terminator in the mother liquor is effectively controlled, so that the mother liquor can directly participate in the polymerization reaction in a circulating manner. The method for preparing the polyvinyl chloride disclosed by the invention ensures the high quality of the polyvinyl chloride, greatly reduces the content of organic residues in the mother liquor, enables the mother liquor to be directly recycled, does not need to additionally add purification equipment and medicaments, saves the production cost and has no pollution to environment optimization. |
| priorityDate | 2017-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.