http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104261721-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-32 |
| filingDate | 2014-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104261721-B |
| titleOfInvention | A kind of ethers polycarboxylic acid slump retaining agent and preparation method thereof |
| abstract | The invention discloses a kind of ethers polycarboxylic acid slump retaining agent and preparation method thereof, its molecular weight is 20000～150000, and its structural formula is as follows: Wherein, R 1 For H or CH 3 , R 2 For H or COOM, R 3 It is the alkyl of 2～4 carbon, R 4 Being the alkyl of 1～3 carbon, M is H or Na or K or NH 4 .The present invention utilizes unsaturated carboxylic acid and/or anhydride and unsaturated carboxylic acid hydroxy ester to carry out esterification preparation bifunctionality monomer, bifunctionality monomer is prepared compared to diamidogen or glycol and thiazolinyl acid amidatioon or esterification, owing to monolateral esterification only need to be occurred to can be prepared by bifunctionality monomer, therefore reaction is more easy to and carries out, and the time needed for reaction is also shorter. |
| priorityDate | 2014-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.