Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4bd83feb1b4188473fb2acaf13e9fcbb http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_07feb997e88ae4659bc8c1ef9ae65617 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2201-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L2270-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L2230-081 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2500-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2207-023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2215-086 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2215-064 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2223-045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2215-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2020-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2010-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2040-25 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-301 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-2222 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-224 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L10-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L10-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M133-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M133-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-1832 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M159-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M169-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M145-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M141-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M169-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M125-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M159-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-064 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-02 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N40-25 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M133-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M133-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M145-16 |
filingDate |
2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2022-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1f66399945f2ab08c592939b482353b |
publicationDate |
2022-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-11459521-B2 |
titleOfInvention |
Lubricant composition and dispersants therefor having a beneficial effect on oxidation stability |
abstract |
A lubricant composition having greater than 50 percent by weight of a base oil, a dispersant composition comprising: i) a first dispersant comprising one or more reaction products of at least one polyisobutenyl succinic acid or anhydride having a polyisobutenyl group with a number average molecular weight that is less than or equal to 1300, and at least one polyamine; and ii) a second dispersant comprising one or more reaction products of at least one polyisobutenyl succinic acid or anhydride having a polyisobutenyl group with a number average molecular weight greater than 1300, and at least one polyamine; and at least one ashless antioxidant; and wherein a weight ratio of the second dispersant to the dispersant composition is 0.66:1 to 1:1 or a ratio of the weight percentages of nitrogen contributed by the second dispersant to nitrogen of the dispersant composition is 0.62:1 to 1:1. |
priorityDate |
2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |