http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111269370-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-22 |
| filingDate | 2020-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111269370-B |
| titleOfInvention | A kind of synthetic method of brominated butadiene-styrene block copolymer |
| abstract | The invention relates to a method for synthesizing a brominated butadiene-styrene block copolymer, which solves the problems of complicated existing production process, low production efficiency, low utilization rate of bromine element, low product yield, many by-products and low purity , poor stability, poor flame retardant properties of the product, difficult solvent recovery and environmental pollution and other technical problems. The method comprises the following steps: 1) adding butadiene-styrene block copolymer to the organic solvent, stirring and dissolving, adding water and an emulsifier, and stirring to obtain butadiene-styrene block copolymer emulsion; 2) adding fat to The alcohol is mixed with water, stirred, sodium bromide, mineral acid and surfactant are added, and the butadiene-styrene block copolymer emulsion and sodium bromate aqueous solution obtained in step 1) are added dropwise to carry out bromination reaction, Dropwise addition is completed, and insulation is obtained to obtain the brominated butadiene-styrene block copolymer crude product; 3) post-processing obtains the brominated butadiene-styrene block copolymer product. The invention is applied to the technical field of flame retardant synthesis. |
| priorityDate | 2020-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.