POLYMER-INORGANIC COMPOSITIONS IN FORM OF NANOPARTICLES, THEIR MANUFACTURING METHOD, AND THEIR USE AS ADDITIVES FOR LUBRICATING MATERIALS Russian patent published in 2023 - IPC C10M161/00 C10M171/06 C08L101/06 C08K3/13 C08L55/00 

FIELD: chemistry.

SUBSTANCE: invention relates to polymer-inorganic compositions in the form of nanoparticles and their production methods. A polymer-inorganic composition in the form of nanoparticles is proposed, obtained by grinding of a mixture containing one or more compounds in the form of nanoparticles (A), selected from a group consisting of metal oxide nanoparticles, metal nitride nanoparticles, graphene, carbon black, and a mixture thereof, and one or more polymer compounds (B) obtained by means of polymerization of one of functional monomers selected from aminoalkyl(meth)acrylates, aminoalkyl(meth)acrylamides, and vinyl monomers containing aromatic groups with a product of reaction of one or more composite esters of (meth)acrylic acid and one or more hydroxylated hydrogenated polybutadienes, wherein the weight ratio of (A) to (B) is from 20:1 to 1:5. A method for the production of the specified composition, its use as an additive to lubricating materials, and a composition of an additive, containing the specified composition, are also proposed.

EFFECT: use of the proposed composition allows for obtainment of an additive with improved antifriction characteristics, stable during long time in lubricating oil, and compatible with other components of lubricants.

13 cl, 1 dwg, 9 tbl