Abstract:
This invention relates to normally liquid lubricating oil additives which provide both anti-oxidant and friction-modifying properties when added to lubricating oil. In particular, this invention relates to C.sub.14 to C.sub.18 alkyl catechol lubricating oil additives which are normally liquid at typical storage temperatures.
Abstract:
A lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants comprises an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and a hydroxy amine of the formula: ##STR1## WHEREIN A and A' are C.sub.2 -C.sub.10 alkylene, R is C.sub.1 -C.sub.30 alkyl, Y is H, C.sub.1 -C.sub.6 alkyl of --A--OH, y is 0, 1 or 2, and x is 1 or 2.Lubricating oil compositions containing this additive composition are also disclosed.
Abstract:
An anti-wear additive for lubricating compositions comprising(A) 1 part by weight of a sulfurized acid prepared by sulfurizing an acid of the formula R-COOH wherein R is C.sub.10 -C.sub.40 alkenyl, said sulfurized acid having a minimum sulfur content of 3% by weight and(B) 1-100 parts by weight of a phosphate of the formula ##STR1## wherein each of R.sup.2, R.sup.3, and R.sup.4 is independently a C.sub.6 -C.sub.20 aromatic or C.sub.1 -C.sub.20 aliphatic hydrocarbon group.
Abstract:
Certain polyalkoxylated compounds are combined with alkaline earth metal carbonates dispersed in a hydrocarbon medium to provide lubricating compositions of superior acid neutralizing capability and rust inhibition in internal combustion engines.
Abstract:
Disclosed is a lubricating oil additive composition which imparts improved oxidation properties to internal combustion engine crankcase lubricants which comprises:(1) an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and(2) an oil-soluble chlorinated hydrocarbon containing at least 6 carbon atoms.Lubricating oil compositions containing this additive composition are also disclosed. Particularly preferred are compositions which also contain an oil-soluble zinc salt.
Abstract:
A lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants comprises an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and a tertiary amine of the formula (R).sub.3 N wherein each R is independently C.sub.1 -C.sub.35 alkyl and at least one R contains at least 11 carbon atoms. Lubricating oil compositions containing this additive composition are also disclosed.
Abstract:
A lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants comprises a antioxidant selected from aromatic and alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and a secondary amine of the formula: ##STR1## wherein R and R' are aliphatic radicals. Lubricating oil compositions containing this additive composition are also disclosed.
Abstract:
Disclosed is a lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants which comprises:(1) an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and(2) an oil-soluble iodo-containing hydrocarbon. Lubricating oil compositions containing this additive composition are also disclosed.
Abstract:
Disclosed is a lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants which comprises:(1) an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and(2) an oil-soluble quaternary ammonium halide. Lubricating oil compositions containing this additive composition are also disclosed.
Abstract:
Disclosed is a water-rinsable soldering fluid comprising a mixture of a polyalkylene ether and a polyamide. The polyamide is formed from the reaction of a carboxylic acid and a polyalkylene polyamine.