초록 ▼

Lubricating oils are described which are useful in two-cycle engines. These oils contain a minor amount of at least one phenolic compound of the general formula (R)a－Ar－(OH)b wherein R is a substantially saturated, hydrocarbon-based group of an average of at least 10 aliphatic carbon atoms; a and b

Lubricating oils are described which are useful in two-cycle engines. These oils contain a minor amount of at least one phenolic compound of the general formula (R)a－Ar－(OH)b wherein R is a substantially saturated, hydrocarbon-based group of an average of at least 10 aliphatic carbon atoms; a and b are each independently an integer of one up to three times the number of aromatic nuclei present in Ar with the proviso that the sum of a and b does not exceed the unsatisfied valences of Ar; and Ar is a single ring, a fused ring or a linked polynuclear moiety having 0 to 3 optional substituents consisting of lower alkyl, lower alkoxyl, methylol or lower hydrocarbon-based substituted methylol, halo and combinations of two or more of said optional substituents.

대표청구항 ▼

A lubricant composition for two-cycle engines comprising a major amount by weight of at least one oil of lubricating viscosity and a minor amount, sufficient to control piston ring sticking and promote general engine cleanliness, of (A) at least one phenolic compound of the formula (R)a－Ar－(OH)b whe

A lubricant composition for two-cycle engines comprising a major amount by weight of at least one oil of lubricating viscosity and a minor amount, sufficient to control piston ring sticking and promote general engine cleanliness, of (A) at least one phenolic compound of the formula (R)a－Ar－(OH)b wherein R is a substantially saturated hydrocarbon-based group of an average at least 10 aliphatic carbon atoms; a and b are each independently an integer of one up to three times the number of aromatic nuclei present in Ar with the proviso that the sum of a and b does not exceed the unsatisfied valences of Ar; and Ar is a single ring, a fused or a linked polynuclear ring aromatic moiety having 0 to 3 optional substituents selected from the group consisting of lower alkyl, lower alkoxyl, halo and combinations of two or more of said optional substituents.