http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5312807-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_01a374f2a28b526fd0c7ecc36564a31d |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S106-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B33-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-145 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B33-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-14 |
| filingDate | 1992-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1994-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85338937abb33f886d151fa063bfa023 |
| publicationDate | 1994-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5312807-A |
| titleOfInvention | Method of improving absorption of salt water by water-swellable clay by redrying |
| abstract | A method of treating a water-swellable clay after the clay has been mined and dried to improve its properties when in contact with salt-contaminated water. After the common initial drying of the clay to a moisture content of 12% by weight or less, the clay is rewetted to a moisture content of more than 12% by weight, preferably at least about 15% or more, based on the dry weight of the clay, then redried to a moisture content of 12% by weight or less, based on the dry weight of the clay. This rewetting and redrying processing of a dried clay unexpectedly improves the salt water absorbency, and viscosity properties when the clay is in contact with salt-contaminated water; unexpectedly increases the rheology properties of the clays for oil well drilling fluids and lost circulation fields when salt-contaminated water is encountered during drilling, as a suspending agent in the cosmetics and pharmaceutical industries when the composition contains a dissolved salt; and provides unexpectedly increased salt water-absorption in forming water-swellable clay-based water barriers. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5578219-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5556547-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5476142-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5670435-A |
| priorityDate | 1990-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.