| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_77564465c43004b6872777dc4e8371cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8d68c83ccbcb56d4aff674a9e92f28be
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2258efa1dd0212d91e87b0487f4ede
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b94e3c4667ca30a021cd632e5af1e2e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-508 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-22 |
| filingDate |
2012-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1edd56407e41125b7f6291ff25409ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8eb583521e13e48e7008596d2f5f3eba
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6553c68cca12bff940a38904f5f21874 |
| publicationDate |
2014-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8623793-B2 |
| titleOfInvention |
Hydrophobically and cationically modified relative permeability modifiers and associated methods |
| abstract |
Methods comprising providing a relative permeability modifier that comprises a hydrophilic polymer backbone with a hydrophobic modification and incorporating at least one cationic compound onto the hydrophilic polymer backbone. The hydrophilic polymer is one or more of: a polyacrylamide; a polyvinylamine; a poly(vinylamine/vinyl alcohol); an alkyl acrylate polymer; cellulose; chitosan; a polyamide; a polyetheramine; a polyhydroxyetheramine; a polylysine; a polysulfone; a gum; or a starch. The hydrophobic modification is achieved either by reacting the hydrophilic polymer with a hydrophobic compound or by a polymerization reaction product of a hydrophilic monomer and a hydrophobically modified hydrophilic monomer. The hydrophobic compound has an alkyl chain length from 4 to 22 carbons and is one or more of: an alkyl acrylate; an alkyl methacrylate; an alkyl acrylamide; an alkyl methacrylamide; or an alkyl dimethylammoniumethyl methacrylate halide. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9644130-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10544080-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019203099-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10787600-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9869170-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10472555-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10988662-B2 |
| priorityDate |
2009-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |