http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109988272-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_792f877a983c0ee8da1933b88350d6df |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-302 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2605 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-38 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 |
| filingDate | 2019-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_381a51e8273c43a0e61e9a28ca9d0159 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f997c2b25e782539bc8374a33b723354 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_628a0c0cf0ee27dda45950fdd6efcb30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03c626fcea589b1e07fc1670b7f1e340 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47d6ddbdcb56148e05eebace011beab7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca8f1dfe66e83336c1333dfa2c5d2b8f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86f2ee506f90ccbec8cac7430fad92c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ecc9664ab0db7f5165369e35eb8faf1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_207eddc36ecef1ec793fb49ddb02ff5f |
| publicationDate | 2019-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109988272-A |
| titleOfInvention | Method for preparing powder polycarboxylate water-reducing agent by adopting ultrasonic wave in bulk polymerization |
| abstract | A method for preparing powder polycarboxylate water-reducing agent using ultrasonic waves in bulk polymerization, wherein the polycarboxylate water-reducing agent is made from the following raw materials: methallyl polyoxyethylene ether macromonomer, acrylic acid , initiator, chain transfer agent. The method for preparing powder polycarboxylate water-reducing agent: put 85-150 parts of methallyl polyoxyethylene ether macromonomer into the reaction kettle in parts by mass, heat up to 65-75 ℃ with ultrasonic heating and start stirring , melt it; mix 20.1-32.2 parts of acrylic acid and chain transfer agent, stir well to obtain liquid A; after the monomer at the bottom of the kettle is completely melted, then put the initiator into the reaction kettle, and use a constant-flow pump after stirring and dissolving. The prepared liquid A is added dropwise, and after the dropwise addition is completed, the aging reaction is carried out by heat preservation; after the reaction is completed, the material is discharged and the temperature is lowered to obtain a solid polycarboxylate water-reducing agent. The method has the advantages of short synthesis reaction period, low production cost, high macromonomer conversion rate, safe and reliable preparation process, and green environmental protection. |
| priorityDate | 2019-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.