http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104250344-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | 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/C08F2-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-40 |
| filingDate | 2013-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104250344-B |
| titleOfInvention | A kind of preparation method of polyacrylamide emulsion |
| abstract | The invention discloses the preparation method of a kind of polyacrylamide emulsion, wherein, the method includes: acrylamide monomer, double bond containing anionic monomer, polymerisable emulsifier, chelating agen, azo-initiator, oxidant and water are mixed to form aqueous solution by (1), and the pH value regulating aqueous solution is 79；(2) emulsifying agent is formed oil solution with organic solvent；(3) mix to form water-in-oil emulsion with described oil solution by described aqueous solution；(4) by after described water-in-oil emulsion deoxygenation, adding reducing agent, make water-in-oil emulsion carry out polyreaction successively at a temperature of the first temperature and second, described second temperature is higher than described first temperature.Use the method that the present invention provides, can prepare not only can rapid solution with water, in emulsion, polyacrylamide has a higher viscosity-average molecular weight simultaneously, and the polyacrylamide emulsion that the extended storage stability of emulsion is good, the content of residual monomer is relatively low in emulsion. |
| priorityDate | 2013-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 92.