Lubricating composition for improving fuel eco and reducing friction

A lubricant composition being of 0W-12 grade type according to the classification of grade SAEJ300;

• said composition comprising:
• at least a base oil;
• and
• at least a Molybdenum or Tungsten chalcogenide nanoobject having an object size ranging from 0.1 to 500 nm and from 1 to 99% by weight of molecules of formula (I) with respect to the total weight of the nanoobject
• A-X—B (I)
• wherein A is OH or SH;
• X is a biradical selected from the group consisting of (C1-C20)alkyl;
• (C1-C20)alkyl substituted with one or more radicals independently selected from the group consisting of:
• (C1-C5)alkyl, —OH, halogen, phenyl, phenyl substituted with one or more (C1-C4)alkyl radicals, phenyl substituted with one or more halogen radicals, benzyl, benzyl substituted with one of more (C1-C4)alkyl radicals, benzyl substituted with one or more halogen radicals, —C(═O)R3, —C(═O)R7, —OC(═O)(O)R3, —C(═O)(O˜), —C(═O)(O)R3, —OR3, —CH(OR3)(OR4), —C(OR3)(OR4)R5, —C(OR3)(OR4)(OR5), —C(OR3)(OR4)(OR5)(OR6), —NR1R2, —N+R1R2R3, —C(═NR1)R2, —C(═O)(NR1R2), —N(C(═O)(R′))(C(═O)(R2))(R3), —O(CN), —NC(═O), —ONO2, —CN, —NC, —ON(═O), —NO2, —NO, —C5H4N, —SR1, —SSR1, —S(═O)R1, —S(═O)(═O)(R1), —S(═O)(OH), —S(═O)(═O)(OH), —SCN, —NCS, —C(═S)(R1), —PR1R2, —P(═O)(OH)2, —OP(═O)(OH)2, —OP(═O)(OR1)(OR2), —B(OH), —B(OR1)(OR2) and —B(OR1)(R2);
• a 2 to 20-member heteroalkyl;
• a 2 to 20-member heteroalkyl substituted with one or more radicals independently selected from the group consisting of:
• —OH, halogen, phenyl, phenyl substituted with one or more (C1-C4)alkyls, phenyl substituted with one or more halogen radicals, benzyl, benzyl substituted with one or more (C1-C4)alkyls, benzyl substituted with one or more halogen radicals, —C(═O)R3, —C(═O)(R7), —OC(═O)(O)R3, —C(═O)(O˜), —C(═O)(O)R3, —OR3, —CH(OR3)(OR4), —C(OR3)(OR4) (R5), —C(OR3)(OR4)(OR5), —C(OR3)(OR4)(OR5)(OR6), —NR1R2, —N*R1R2R3, —C(═NR1)(R2), —C(═O)(NR1R2), —N(C(═O)(R1))(C(═O)(R2))(R3), —O(CN), —NC(O), —ONO2, —CN, —NC, —ON(═O), —NO2, —NO, —C5H4N, —SR1, —SSR1, —S(═O)(R1), —S(═O)(═O)(R1), —S(═O)(OH), —S(═O)(═O)(OH), —SCN, —NCS, —C(═S)(R1), —PR1R2, —P(═O)(OH)2, —OP(═O)(OH)2, —OP(═O)(OR1)(OR2), —B(OH), —B(OR1)(OR2) and —B(OR1)(R2);
• and a homopolymer or copolymer comprising a polymeric chain selected from the group consisting of:
• alkyd resin, epoxy resin, phenolic resin, polyvinyl halides, polyacetal, polyacrylics, polyalkylenes, polyalkenylenes, polyalkynylenes, polyamic acids, polyamides, polyamines, polyanhydrides, polyarylenealkylenes, polyarylenes, polyazomethines, polybenzimidazoles, polybenzothiazoles, polybenzyls, polycarbodiimides, polycarbonates, polycarbones, polycarboranes, polycarbosilanes, polycyanurates, polydienes, polyester-polyuréthanes, polyesters, polyetheretherketones, polyether-polyurethanes, polyethers, polyhydrazides, polyimidazoles, polyimides, polyisocyanurates, polyketones, polyolefines, polyoxyalkylenes, polyoxyphenylenes, polyphenyls, polyphosphazenes, polypyrroles, polypyrrones, polyquinolines, polyquinoxalines, polysilanes, polysilazanes, polysiloxanes, polysilsesquioxanes, polysulfides, polysulfonamides, polysulfones, polythiazoles, polythiomethylenes, polythiophenylenes, polyureas, polyurethanes, polyvinyl acetals, polyvinyl butyrals, polyvinyl formals, polyvinyl alkanoates, vinyl polymers, and natural polymers;
• B is a radical selected from the group consisting of:
• H, —OH, —NH2, (C1-C4)alkyl, halogen, phenyl substituted with one or more halogen radicals, benzyl substituted with one or more halogen radicals, —C(═O)R3, —C(═O)R7, —OC(═O)(O)R3, —C(═O)(O˜), —C(═O)(O)R3, —OR3, —CH(OR3)(OR4), —C(OR3)(OR4)(R5), —C(OR3)(OR4)(OR5), —C(OR3)(OR4)(OR5)(OR6), —NR1R2, —N+R1R2R3, —C(═NR1)(R2), —C(═O)(NR1R2), —N(C(═O)(R1))(C(═O)(R2))(R3) —O(CN), —NC(═O), —ONO2, —CN, —NC, —ON(═O), —NO2, —NO, —C5H4N, —SR1, —SSR1, —S(═O)(R1), —S(═O)(═O)(R1), —S(═O)(OH), —S(═O)(═O)(OH), —SCN, —NCS, —C(═S)(R1), —PR1R2, —P(═O)(OH)2, —OP(═O)(OH)2, —OP(═O)(OR1)(OR2), —B(OH), —B(OR1)(OR2) and —B(OR1)(R2);
• provided that:
• when B is H or (C1-C4)alkyl, then X is a 2 to 20-member heteroalkyl;
• a 2 to 20-member keteroalkyl substituted with one or more radicals, as defined above, or a homopolymer or copolymer, as defined above;
• and
• B is H or (C1-C4)alkyl when X is a homopolymer, copolymer, a 2 to 20-member heteroalkyl or a 2 to 20-member heteroalkyl substituted as defined above;
• and
• when B is —NH2, then X is a biradical selected from the group consisting of (C1-C20)alkyl;
• (C1-C20)alkyl substituted with one or more radicals independently selected from the group consisting of:
• (C1-C5)alkyl, —OH, halogen, phenyl, phenyl substituted with one or more (C1-C4)alkyl radicals, phenyl substituted with one or more halogen radicals, benzyl, benzyl substituted with one of more (C1-C4)alkyl radicals, benzyl substituted with one or more halogen radicals, —C(═O)R3, —C(═O)R7, —OC(═O)(OR3), —C(═O)(O−), —C(═O)(O)R3, —OR3, —CH(OR3)(OR4), —C(OR3)(OR4)R5, —C(OR3)(OR4)(OR5), —C(OR3)(OR4)(OR5)(OR6), —NR1R2, —N+R1R2R3, —C(═NR1)R2, —C(═O)(NR1R2), —N(C(═O)(R1))(C(═O)(R2))(R3), —O(CN), —NC(═O), —ONO2, —CN, —NC, —ON(═O), —NO2, —NO, —C5H4N, —SR1, —SSR1, —S(═O)R1, —S(═O)(═O)(R1), —S(═O)(OH), —S(═O)(═O)(OH), —SCN, —NCS, —C(═S)(R1), —PR1R2, —P(═O)(OH)2, —OP(═O)(OH)2, —OP(═O)(OR1)(OR2), —B(OH), —B(OR1)(OR2) and —B(OR1)(R2);
• a 2 to 20-member heteroalkyl;
• a 2 to 20-member heteroalkyl substituted with one or more radicals independently selected from the group consisting of:
• —OH, halogen, phenyl, phenyl substituted with one or more (C1-C4)alkyls, phenyl substituted with one or more halogen radicals, benzyl, benzyl substituted with one or more (C1-C4)alkyl radicals, benzyl substituted with one or more halogen radicals, —C(═O)R3, —C(═O)(R7), —OC(═O)(O)R3, —C(═O)(O—), —C(═O)(O)R3, —OR3, —CH(OR3)(OR4), —C(OR3)(OR4)(R5), —C(OR3)(OR4)(OR5), —C(OR3)(OR4)(OR5)(OR6), —NR1R2, —N+R1R2R3, —C(═NR1)(R2), —C(═O)(NR1R2), —N(C(═O)(R1))(C(═O)(R2))(R3) —O(CN), —NC(O), —ONO2, —CN, —NC, —ON(═O), —NO2, —NO, —C5H4N, —SR1, —SSR1, —S(═O)(R1), —S(═O)(═O)(R1), —S(═O)(OH), —S(═O)(═O)(OH), —SCN, —NCS, —C(═S)(R1), —PR1R2, —P(═O)(OH)2, —OP(═O)(OH)2, —OP(═O)(OR1)(OR2), —B(OH), —B(OR1)(OR2) and —B(OR1)(R2);
• R1, R2, R3, R4, R5 and R6 are radicals independently selected from the group consisting of H, (C1-C20)alkyl, (C6-C12)aryl(C1-C20)alkyl and (C6-C12)aryl;
• R7 is halogen;
• 2 to 20-member heteroalkyl represents a known non-polymeric C-heteroalkyl radical consisting of from 2 to 20 members where at least one of the members is O, S or NH, and the remaining members are selected from CH, C(═O) and CH2;
• and (C5-C12)aryl represents a ring system from 5 to 12 carbon atoms, the system comprising from 1 to 2 rings, where each one of the rings forming the ring system:
• is saturated, partially unsaturated or aromatic;
• and is isolated, partially or totally fused.