| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4bd83feb1b4188473fb2acaf13e9fcbb |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2215-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M143-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M159-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M149-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M133-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M145-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N30-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M149-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-32 |
| filingDate |
2008-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d689a3918f66008c4241449872ea468
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1eff7588b3cd11bb04421e66365f34ce |
| publicationDate |
2015-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102250264-B |
| titleOfInvention |
Polyalkenyl succinic acids and anhydrides |
| abstract |
A polyalkenyl succinic anhydride is prepared with low amounts of resinous or chlorinated byproducts in a two-step process whereby a polyalkene is first reacted with an unsaturated organic acid in a thermal ene reaction, followed with exposure to a gaseous halogen in presence of an additional amount of the unsaturated organic acidic reagent. The foregoing process produces a polyisobutenyl succinic anhydride having a high ratio of succinic anhydride functional groups to polyisobutenyl backbone groups. Such a polyisobutenyl succinic anhydride is particular suitable for the production of oil-soluble hydrocarbyl succinimides that have good dispersant properties when added to lubricating oil compositions. |
| priorityDate |
2007-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |