| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_824448eec22bc414e8c5bd3143473df1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-585
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F26-06 |
| filingDate |
2013-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3a488e06c55f153a576bebfa8457d50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c56a61311d4201b4364080286ea18ee8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2cc7debd884781db7cb8073abf5812fa |
| publicationDate |
2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2804922-A1 |
| titleOfInvention |
Process for the enhanced recovery of oil by injection of a polymer solution |
| abstract |
Process for enhanced oil recovery employing an aqueous solution comprising at least one linear or structured water-soluble copolymer obtained by polymerization: - of at least 10 mol% of 2-acrylamido-2-methylpropanesulfonic acid monomer in the free acid and/or salified form, - of at least 10 mol% of at least one comonomer chosen from the group consisting of acrylamide, N-vinylpyrrolidone (NVP) and acrylamide-derived monomers of formula (I): R = H or CH 3 or CH2COOR', where R' is an alkyl comprising at most 3 carbon atoms, A is an N heterocycle comprising, in its ring, from 4 to 6 carbon atoms and optionally an ether functional group or a ketone functional group. |
| priorityDate |
2012-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |