http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113880984-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 |
| filingDate | 2021-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113880984-B |
| titleOfInvention | A kind of drag reducing agent and preparation method thereof |
| abstract | The invention discloses a drag reducing agent and a preparation method thereof. The branched quaternary ammonium salt is first prepared by using polyethylene polyamine and an unsaturated quaternary ammonium salt, and then the branched quaternary ammonium salt is end-capped with an unsaturated acid chloride to obtain the branched quaternary ammonium salt. salt monomer, and finally acrylamide monomer, acrylic acid monomer, unsaturated polyoxyethylene ether monomer and branched quaternary ammonium salt monomer are copolymerized to obtain drag reducing agent. The drag reducing agent of the present invention has good drag reduction rate whether in clear water or in salt water. Under the condition of adding 0.1%, the drag reduction rate can reach more than 76%, even in salt-containing conditions. Under the condition of 5%, its drag reduction rate can still reach more than 74%, indicating that the drag reducer of the present invention has good salt resistance; at the same time, even under long-term shearing conditions, its drag reduction rate It can still reach more than 70%, indicating that the drag reducing agent of the present invention has better shear resistance. |
| priorityDate | 2021-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 85.