Multifunctional lubricating oil base stocks and processes for preparing same

A composition comprising one or more alkylated polycyclic, heteroatom-containing, hydrocarbon compounds, wherein said one or more alkylated polycyclic, heteroatom-containing, hydrocarbon compounds are produced by a process comprising reacting a polyalphaolefin oligomer with at least one polycyclic, heteroatom-containing, hydrocarbon compound, in the presence of a catalyst, under reaction conditions sufficient to produce said one or more alkylated polycyclic, heteroatom-containing, hydrocarbon compounds.

A process for producing a composition comprising one or more alkylated polycyclic, heteroatom-containing, hydrocarbon compounds, said process comprising reacting a polyalphaolefin oligomer with at least one polycyclic, heteroatom-containing, hydrocarbon compound, in the presence of a catalyst, under reaction conditions sufficient to produce said composition.

A lubricating oil base stock comprising one or more compounds represented by the formula

• wherein R1 and R2 are same or different and are the residue of an alkyl group having more than 10 carbon atoms wherein the composition has a viscosity (Kv100) from 2 to 300 at 100° C. as determined by ASTM D-445, and a viscosity index (VI) from -100 to 300 as determined by ASTM D-2270.

A lubricating oil comprising a lubricating oil base stock as a major component, and a polycyclic, heteroatom-containing, hydrocarbon compound cobase stock as a minor component;

• wherein said polycyclic, heteroatom-containing, hydrocarbon compound cobase stock comprises one or more compounds represented by the formula
• wherein R1 and R2 are same or different and are the residue of an alkyl group having more than 10 carbon atoms wherein the composition has a viscosity (Kv100) from 2 to 300 at 100° C. as determined by ASTM D-445, and a viscosity index (VI) from −100 to 300 as determined by ASTM D-2270.

A method for improving oxidative stability of a lubricating oil by using as the lubricating oil a formulated oil comprising a lubricating oil base stock as a major component, and polycyclic, heteroatom-containing, hydrocarbon compound cobase stock as a minor component;

• wherein said polycyclic, heteroatom-containing, hydrocarbon compound cobase stock comprises one or more compounds represented by the formula
• wherein R1 and R2 are same or different and are the residue of an alkyl group having more than 10 carbon atoms wherein the composition has a viscosity (Kv100) from 2 to 300 at 100° C. as determined by ASTM D-445, and a viscosity index (VI) from −100 to 300 as determined by ASTM D-2270. and an oxidation onset temperature (OOT)/oxidation peak temperature (OPT) ranging from 175° C./325° C. to 225° C./375° C.;
• wherein oxidative stability is improved as compared to oxidative stability achieved using a lubricating engine oil containing a minor component other than the polycyclic, heteroatom-containing, hydrocarbon compound cobase stock.

A composition comprising one or more compounds represented by the formula

• wherein R1 and R2 are same or different and are the residue of an alkyl group having more than 10 carbon atoms wherein the composition has a viscosity (Kv100) from 2 to 300 at 100° C. as determined by ASTM D-445, and a viscosity index (VI) from −100 to 300 as determined by ASTM D-2270.

A lubricating oil base stock comprising one or more compounds represented by the formula

• wherein R1 and R2 are same or different and are the residue of an alkyl group having more than 10 carbon atoms wherein the composition has a viscosity (Kv100) from 2 to 300 at 100° C. as determined by ASTM D-445, and a viscosity index (VI) from −100 to 300 as determined by ASTM D-2270.