http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107033282-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-286 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-284 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L39-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L3-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L39-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L3-08 |
| filingDate | 2017-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107033282-B |
| titleOfInvention | Preparation method of instant cationic high molecular weight polyacrylamide |
| abstract | The invention discloses a preparation method of instant cationic high molecular weight polyacrylamide, which mainly comprises the following steps: 1) adding 20-40 mass% of acrylamide aqueous solution into a reactor, sequentially adding a cationic comonomer and a cosolvent, and uniformly stirring; 2) introducing nitrogen to remove the solution and oxygen in the reactor; 3) adding an initiator, and reacting for 1-10 hours at 0-60 ℃ to obtain a rubber block; 4) crushing, granulating, drying and crushing the prepared gel block to obtain instant cationic high molecular weight polyacrylamide particles; the cosolvent is a cross-linked hydrophilic polymer. The invention takes account of the high molecular weight and the high dissolution speed of the polyacrylamide. The number average relative molecular weight of the prepared instant cationic high molecular weight polyacrylamide reaches more than 500 ten thousand; the dissolution speed of the prepared polyacrylamide is high by the action of the cross-linked hydrophilic polymer and is within 10 minutes. |
| priorityDate | 2017-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.