http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112341570-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-38 |
| filingDate | 2020-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112341570-B |
| titleOfInvention | Aqueous two-phase polyacrylamide terpolymer nano-microsphere latex and preparation method thereof |
| abstract | Aqueous two-phase polyacrylamide terpolymer nano-microsphere latex and preparation method thereof, using acrylamide (AM), 2-acrylamide-2-methylpropanesulfonic acid (AMPS) and N-vinylpyrrolidone (NVP) as Polymerization monomer, N,N-methylenebisacrylamide as cross-linking agent, ammonium persulfate (APS) as initiator, polyethylene glycol as thickening stabilizer, P(AM/AMPS) was synthesized by aqueous two-phase polymerization technology /NVP) terpolymer nano-microsphere latex, the prepared aqueous two-phase P (AM/AMPS/NVP) ter-polymer nano-microspheres have good salt and temperature resistance, water swelling performance and viscoelasticity; (AM/AMPS/NVP) terpolymer nano-microsphere latex has low viscosity and good stability. It can be diluted with water and salt water. Under the action of the pump, the low pressure can smoothly enter the deep formation. It has been applied in deep control, flooding and profile control in low permeability and medium and low permeability oilfields. |
| priorityDate | 2020-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.