http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105732913-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-302 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2351-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-32 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-32 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/C08J3-24 |
| filingDate | 2016-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105732913-B |
| titleOfInvention | A kind of isocyanates chain extension modified polycarboxylic acid water reducer and preparation method thereof |
| abstract | The invention discloses a kind of isocyanates chain extension modified polycarboxylic acid water reducer and preparation method thereof, belong to cement additire field.Chain extender mixes as initiator with chain-transferring agent, reducing agent, and isocyanates assists the initiator of synchronous dropwise addition and the polymeric monomer of reaction container bottom to participate in reacting as minor comonomer solution with acrylic acid in the way of being progressively added dropwise.Present invention synthesis in polycarboxylic acids molecular backbone by introducing isocyanates, and the chain extender of the multi-functional alcohols of the low molecule amount of hydroxyl or amino and aminated compounds, it polymerize in terminal isocyanate groups, increase the quantity of short-chain branch, the chain extender short-chain branch length of polyethers long-chain branch and alcohols and aminated compounds is promoted to be alternately distributed, increase water reducer dispersiveness and adaptability.Modified polycarboxylate water-reducer is to the effect of being significantly improved of the dispersive property of cement, and next shows as function of slump protection, compression strength, impervious slight amplification. |
| priorityDate | 2016-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.