http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108084357-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/C04B24-267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2605 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-065 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-02 |
| filingDate | 2017-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108084357-B |
| titleOfInvention | Preparation method of liquid polycarboxylate superplasticizer |
| abstract | The invention provides a preparation method of a liquid polycarboxylate superplasticizer, which is prepared through bulk polymerization and specifically comprises the following steps: (1) mixing polyoxyethylene polyoxypropylene ether and polyoxyethylene ether, controlling the temperature to be 40-60 ℃, uniformly stirring, and then adding an initiator and a mixture of unsaturated carboxylic acid and a chain transfer agent; (2) and (3) curing for 0.5-1 h after the step (1) is finished, and cooling to obtain the collapse-proof polycarboxylic acid water reducing agent. The bulk polymerization reaction is carried out at a relatively low temperature, the operability is strong, the conditions are mild, the energy consumption is low, and the method can be used for synthesizing the polycarboxylic acid water reducing agent with excellent water reducing performance. The polycarboxylate superplasticizer prepared by the method is liquid at normal temperature, has the effective concentration of 100 percent, has stable storage performance, is suitable for long-distance transportation and use, and brings good construction conditions for concrete construction. |
| priorityDate | 2017-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.