FIELD: chemistry.
SUBSTANCE: invention refers to a graft copolymer, a method for producing it and to a lubricant oil composition, which contains a graft polymer as an additive. The graft polymer contains polyolefin having an average molecular weight of less than 15,000 and polydispersity from 1.1 to 10, a nitrogen-containing ethylene-unsaturated aliphatic or aromatic grafted monomer having from 2 to approximately 50 carbon atoms, and a metal organic compound specified in molybdenum organic, titanium organic, manganese organic compounds and mixtures thereof.
EFFECT: using the grafted polymer of the present invention as an additive to the lubricant oil composition improves the operational anti-wear, oxidation stability and shear stability properties.
14 cl, 5 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| MULTIFUNCTIONAL GRAFT POLYMER | 2006 |
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| MULTIFUNCTIONAL GRAFT COPOLYMER-DISPERSANT | 2006 |
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| PROCESS FOR PREPARING LOW SULFUR DISPERSANT POLYMERS | 2013 |
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RU2650526C2 |
| NEW VISCOSITY INDEX IMPROVING AGENTS HAVING CERTAIN MOLECULAR WEIGHT DISTRIBUTIONS | 2018 |
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RU2768881C2 |
| HYDROGENIZED POLYBUTADIENES SUITABLE AS ADDITIVES TO LUBRICATING MATERIALS | 2018 |
|
RU2676472C1 |
