http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0106530-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0bdbaa7d1404425011d1b246ed5628a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-91 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L25-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L25-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-36 |
| filingDate | 1983-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16908c0713549f43bae9b08c4ec15f36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e162368a495c586eed8683b427f7dcf6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5db4ba0521a3422531da7c7ed5118b8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e235192587bf2a4dba87ed7481e58f5 |
| publicationDate | 1984-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0106530-A1 |
| titleOfInvention | Drilling fluids based on powdered sulfonated thermoplastic polymers |
| abstract | The present invention relates to powdered sulfonated thermoplastic polymers which function as viscosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits and lift cuttings from the holes in the drilling operation for oil and gas wells. The powdered sulfonated thermoplastic polymer has 5 to 100 meq. of sulfonate groups per 100 grams of the sulfonated thermoplastic polymer, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion. The powdered sulfonated thermoplastic polymers have a particle size range of 0.25 µm to 2.5 µm and are prepared by spray drying an emulsion of the sulfonated thermoplastic polymer which has been prepared by a free radical copolymerization process. A polar cosolvent can optionally be added to the mixture of oil drilling mud and sulfonated polymer, wherein the polar cosolvent increases the solubility of the sulfonated polymer in the oil drilling mud by decreasing the strong ionic Interactions between the sulfonate groups of the sulfonated polymer. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-590248-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2171127-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2171127-B |
| priorityDate | 1982-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.