| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_443eae86b8ef754cd026275e04104873
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e458b48eec9c52221eb48b5ad13c6d3c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f5c6803dcd9d74dcc670fc74eee8019b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fb9f44db08d1c42a53f3d28eaae416f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0053 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-04 |
| filingDate |
2009-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30e0c6b70927e9491dd31f7aaee804f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_511c179672bf1b6a7dca37a1a8d2ae18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4ae982a71dbeabd3bb14d5e83093ce9 |
| publicationDate |
2014-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8728229-B2 |
| titleOfInvention |
Cement slurry composition |
| abstract |
The present invention provides a cement slurry composition, containing a hydraulic cement material, (A) a first water-soluble low molecular weight compound and (B) a second water-soluble low molecular weight compound differing from the compound (A), wherein a combination of the compounds (A) and (B) is (I) the compound (A) selected from cationic surfactants and the compound (B) selected from anionic aromatic compounds; or (II) the compound (A) selected from cationic surfactants and the compound (B) selected from brominated compounds, and in the compound (A), a ratio of compounds having a hydrocarbon group of 18 or more carbon atoms is not less than 45% by weight. |
| priorityDate |
2009-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |