| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_419c1d0d093b6758a959707f81a089bb |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2229-041
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2215-086
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2215-223
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2203-1025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2207-026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2207-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2209-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2223-047 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-1818
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M149-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M149-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M169-044 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N30-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N30-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M149-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M169-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M149-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-34 |
| filingDate |
2021-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b75a5170c720e38d4ee21e1b87d9673
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93b1de5b3c55d530be88865cc5f7ce8c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6160d7d871edd70e27102aab932407b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f81c2c9e460dd2ef155c51184dbcf95
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f098777b761ff8e51f9d8b96821141f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3d162ed0e596b6f7db6c03cb1349bb5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6189740fd7d1499d6a7602cb371d0c7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0290d5142899db6601269da8c934182b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cc50a84ed57bcff3a7d7b0afa4660f0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5625ec39ea22af31f5af83e27f7fd928
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d780bc707f9e9d208ac13e8d445a0e5 |
| publicationDate |
2022-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-113943596-A |
| titleOfInvention |
Viscosity index improver and preparation method and application thereof |
| abstract |
The invention relates to a viscosity index improver and its preparation method and application. The viscosity index improver includes an acrylate copolymer, and the monomers of the acrylate copolymer include an acrylate compound represented by formula (I) and a nitrogen-containing compound represented by formula (II); when preparing the acrylate copolymer , based on the total mass of the acrylate compound represented by the formula (I) and the nitrogen-containing compound represented by the formula (II), the mass percentage of the nitrogen-containing compound represented by the formula (II) is 0.1% to 20%. The viscosity index improver can improve the thermal oxidation stability of the lubricating oil, and can slow down the oil viscosity increase caused by the oxidation of the lubricating oil and the deposition of polar macromolecular substances produced in the oxidation process. |
| priorityDate |
2021-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |