| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_de020b7dcbcaf745ca743fa95fa94853 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-308 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F120-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-1006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-165 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F228-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F122-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F120-18 |
| filingDate |
2019-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a731737b7f468c37b5e9383ba0760f4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e48ba03d228dc136229c422aa1c53c9f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76999271b09a33a528f9951f15ea9ab8 |
| publicationDate |
2020-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-110951008-A |
| titleOfInvention |
A kind of solid sheet-like polycarboxylic acid slump retention agent and method prepared by soap-free emulsion polymerization |
| abstract |
The invention provides a solid sheet polycarboxylic acid slump-retaining agent prepared by a soap-free emulsion polymerization method and a method thereof. The parts by weight of each component are: ester-based hydrophobic monomer for soap-free emulsification: 18-27 parts; initiator a: 0.48-0.72 parts; soap-free hydrophilic small monomer: 9-18 parts; chain transfer agent a : 0.41-0.69 parts; polyether macromonomer: 765-810 parts; unsaturated dicarboxylic acid: 32-68 parts; unsaturated sulfonic acid small monomers: 12-28 parts; alkyl acrylate: 50- 74 parts; chain transfer agent b: 2.3-3.8 parts; initiator b: 3.2-5.9 parts; initiator c: 2.6-4.6 parts; chain transfer agent c: 3.2-4.7 parts; pH adjuster: 7.7-11.5 parts. The method is carried out according to the following operation steps: 1. Preparation of soap-free polymer; 2. Preparation of A, B and C solutions; 3. Dropwise addition of A, B and C solutions; 4. Preparation of solid sheet-like polycarboxylic acid slump retention agent . The slump retaining agent can effectively slow down the hydration of cement, effectively maintain the slump of concrete for a long time, slow down the loss of concrete slump over time, and keep the fluidity and workability of concrete more stable in all aspects. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113402662-A |
| priorityDate |
2019-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |