http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108409918-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/C04B24-2605 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/C08F222-10 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/C08F220-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 |
| filingDate | 2018-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108409918-B |
| titleOfInvention | A kind of preparation method of high solids content ethers collapse protective poly-carboxylic acid water reducing agent |
| abstract | The invention discloses a kind of preparation methods of high solids content ethers collapse protective poly-carboxylic acid water reducing agent, specific synthesis step are as follows: isoamyl alcohol polyoxyethylene ether is dissolved in water, in 60 ~ 80 DEG C of heating meltings, it is cooled to 20 ~ 30 DEG C, sequentially add prewired chain-transferring agent solution, initiator A solution, mixing speed is adjusted to 200 ~ 300r/min, it is added dropwise by the way of singly dropwise addition or double dropwise additions, wherein 2.5 ~ 3h is added dropwise in the solution comprising monomer, 3 ~ 3.5h of initiator B solution when double dropwise additions, preceding 1h reaction temperature in reaction process kettle is controlled to heat up 4 DEG C of <, entire reaction temperature is no more than 40 DEG C, 1 ~ 2h is kept the temperature after completion of dropwise addition, product pH value is adjusted to 7 ± 1 high concentration ethers collapse protective poly-carboxylic acid water reducing agent mother liquors that solid content is 80% to obtain the final product with piece alkali, water-reducing agent State is viscous liquid.Water-reducing agent mixing concrete slump retention property prepared by the present invention is more preferable, has saved the cost during production, transport and storage；Product Green environmental protection, formaldehydeless content, production process three-waste free discharge. |
| priorityDate | 2018-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.