| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3997407790a9cf7baf4143c77f4361d6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e28032b4dae483384b2f28cb3ee45bc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-933
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-903 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-72 |
| filingDate |
1982-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1985-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73b2f7265e18d4098e6c0baa9a2fed41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46660dd2b1dbf36d4941381f31e3bf06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84adb01e743c9361c78e7df61c7e8032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c690179b0c087447bddcf41503ec050 |
| publicationDate |
1985-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4499232-A |
| titleOfInvention |
Water soluble, crosslinkable polymer compositions, their preparation and use |
| abstract |
The present invention relates to macromolecular compositions crosslinked by a novel bridge having the formula -NRx-CH=N-CO-. This novel bridge is obtained by reacting a macro-molecule, preferably a polymer, having at least two amidocarbonyl groups with a compound having at least two formylamido groups in an aqueous medium under highly acidic conditions. The crosslinking bridge formed by the reaction of this invention is produced in accord with the following formula: <IMAGE> +TR RNRxCHNCOR' + H2O Compositions containing macromolecules having at least two amidocarbonyl groups and a compound having at least two formylamido groups can act as viscosifying or gelling agents for aqueous acids where when added to aqueous acids, crosslinking occurs. Acids gelled in this manner have important use in the recovery of oil and natural gas from subterranean formations. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6169058-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4889887-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7842741-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2166060-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6228812-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4930575-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102005063376-B4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010210486-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4623699-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4540510-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11454099-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009009343-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8067343-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11125064-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007059857-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009192055-A1 |
| priorityDate |
1982-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |