http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106746873-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/C04B40-0042 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 |
| filingDate | 2017-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106746873-B |
| titleOfInvention | The preparation method of powdery polycarboxylic-acid high-performance water reducing agent |
| abstract | The invention discloses a kind of powdery polycarboxylic-acid high-performance water reducing agents and preparation method thereof, preparation method comprising steps of (1) glycerol maleate ester preparation: the maleic anhydride, glycerol and catalyst of metering are added into reaction kettle, separates water layer and cools down；(2) preparation of molten state polycarboxylate high performance water-reducing agent: being added the polyether monomer of metering in reaction kettle, stirring melts, and adds unsaturated sulfonic acid salt and oil-soluble initiator stirring and dissolving；Then water soluble starter, chain-transferring agent and acrylic or methacrylic acid mixed solution is made into be added；(3) preparation of powdery polycarboxylic-acid high-performance water reducing agent: molten product is sent to freezing crusher, carries out low-temperature grinding at -20~-40 DEG C, and powdery polycarboxylic-acid high-performance water reducing agent is made.The present invention can prepare any concentration solution according to actual needs, have good diminishing dispersion effect, and lower without postprocessing working procedures, the transportation cost such as heat drying or separation solvent. |
| priorityDate | 2017-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 84.