http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1528258-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_59aeacfc8c0fb15a69d7dd77723e2c36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B15-005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-08 |
| filingDate | 1976-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1528258-A |
| titleOfInvention | Thickening aqueous brine by crosslinking cellulose polymers therein |
| abstract | 1528258 Brine thickened with cross-linked cellulose HERCULES Inc 10 Aug 1976 [11 Aug 1975] 33264/76 Heading C3V [Also in Division E1] An aqueous brine solution is thickened by mixing with at least 0À025 wt.% based on the solution of carboxymethyl hydroxyethyl cellulose, and cross-linking said cellulose derivative in the solution with a polyvalent metal cation, the cellulose having a carboxymethyl D.S. is 0À2 to 0À6 and a hydroxyethyl M.S. is 1À5 to 3À0, and the metal cation being provided as a salt in which the metal cation is present in the same cationic valence state as the cross-linking cation species. The thickened brine solutions are used for pumping into oil wells. In the examples, use is made of chromium ions Cr<SP>3+</SP>. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4321968-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4451389-A |
| priorityDate | 1975-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID458397383 |
Total number of triples: 15.