http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109438628-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-302 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-387 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-165 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 |
| filingDate | 2018-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109438628-B |
| titleOfInvention | Super-slow-release polycarboxylic slump retaining agent and preparation method thereof |
| abstract | The invention discloses a super slow-release polycarboxylic slump retaining agent and a preparation method thereof, wherein the preparation method comprises the following steps: (1) esterification: reacting methacrylic acid, saturated acid and 3-bis (2-hydroxyethyl) amino-2-hydroxypropanesulfonic acid under the action of a catalyst to prepare an unsaturated esterified small monomer; (2) placing unsaturated polyether, unsaturated phosphate and unsaturated monocarboxylic acid into a primer, and then respectively dropwise adding a photoinitiator (solution A) dissolved in deionized water, a chain transfer agent, the unsaturated monocarboxylic acid, an unsaturated esterified small monomer and unsaturated carboxylic ester (solution B) into the primer for reaction and polymerization; (3) and (5) adding a pH regulating solution for neutralization after the heat preservation is finished. The slump retaining agent prepared by the invention has good slump retaining capacity at high temperature for a long time. |
| priorityDate | 2018-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 104.