http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0467871-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a4702519b9974cd75a1ce76eabc80d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L15-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B10-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16J15-3284 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16J15-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-25 |
| filingDate | 1991-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1997-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f16a97390358cd3d6429ca0827bcb0a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30f4f7a5c15caca9d43c90ecc0f310e5 |
| publicationDate | 1997-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0467871-B1 |
| titleOfInvention | O-ring seal for rock bit bearings |
| abstract | An O-ring seal composition for retaining the lubrication around a rock bit bearing for drilling subterranean formations comprises 100 parts by weight highly-saturated nitrile elastomer, furnace black in the range of from 40 to 70 parts by weight, peroxide curing agent in the range of from 7 to 10 parts by weight, zinc oxide or magnesium oxide in the range of from 4 to 7 parts by weight, stearic acid in the range of from 0.5 to 2 parts by weight, tetrafluoroethylene particles in the range of from 0 to 15 parts by weight, and a fatty acid amide selected from the group containing saturated or unsaturated fatty acid amides 15 to 25 carbon atoms in length in the range of from 0 to 8 parts by weight. |
| priorityDate | 1990-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.