| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cfcdbf72e376e592ff8d61ab4a6f8009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb042e0826b7ff76383f7fc63a326ca2 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K23-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-00 |
| filingDate |
1991-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65d23f8f144aa0f6034587d3fa90ca0d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a47fa794a9ed1ca7dc847f3d8d87ddcb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ab6435445774d057a78a9a8b1241913
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d64d26f731c672c6e3be3c3f4d3b42d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69daaec8dc72589b63123d146d53ec48 |
| publicationDate |
1993-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0523111-A1 |
| titleOfInvention |
BRANCHED ETHER SURFACTANTS AND THEIR USE IN AN IMPROVED OIL RECOVERY PROCESS. |
| abstract |
Surfactant of formula (I), in which R represents a hydrocarbon containing from 4 to 6 carbon atoms; r is 0 or 1; Y represents an alkylene group having between 1 and 3 carbon atoms and optionally containing a hydroxyl group; m1 and m2, identical or different, are 0 or 1, provided that m1 and m2 are not simultaneously 0; A represents an alkyleneoxy group derived from an alkylene oxide having 2 or 3 carbon atoms; and p is on average between 0 and 1.9; or one of its salts. The surfactant and a microemulsion containing it allow improved oil recovery. |
| priorityDate |
1990-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |