Abstract:
A composition is disclosed which comprises: (A) at least one neutral or basic metal salt or boron-containing neutral or basic metal salt of at least one acidic organic compound, the metal in said salt being selected from the group consisting of alkali metals, alkaline-earth metals, zinc, copper, aluminum or a mixture of two or more of said metals; (B) at least one metal deactivator; and (C) at least one compound selected from the group consisting of (C-1) phosphorus-containing amide; (C-2) phosphorus-containing ester; (C-3) sulfur-coupled dithiocarbamate; (C-4) sulfur-containing compound represented by the formula (I), wherein R , R , R and R are each independently H or hydrocarbyl groups, R and/or R may be G or G ; R and R and/or R and R together may be alkylene groups containing about 4 to about 7 carbon atoms; G and G are each independently C(X)R, COOR, C=N, R -C=NR , CON(R)2 or NO2, and G also may be CH2OH, wherein X is O or S, each of R and R are independently H or a hydrocarbyl group, R is H or a hydrocarbyl group; when both G and G are R C=NR , the two R groups together may be a hydrocarbylene group linking the two nitrogen atoms; when G is CH2OH and G is COOR, a lactone may be formed by intramolecular condensation of G and G ; and x is an integer from 1 to about 8; and (C-5) mixture of two or more of any of (C-1) to (C-4). These compositions are useful as additives for lubricants and functional fluids, particularly hydraulic fluids, gear oils, greases and the like.
Abstract:
A composition is disclosed which comprises: (A) a compound represented by the formula wherein Ar1 and Ar2 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; R1, R2, R3 and R4 are independently hydrogen or hydrocarbyl groups of from 1 to about 25 carbon atoms; X is at least one divalent sulfur atom, sulfone group, sulfixide group, or a mixture thereof; and n is a number ranging from 1 to about 5; and (B) a compound represented by the formula wherein Ar3 and Ar4 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; and R5 is hydrogen, halogen, OH, NH2, SH, NO2 or a hydrocarbyl group of from 1 to about 50 carbon atoms. Concentrates, lubricants, functional fluids, fuels, aqueous compositions and emulsions comprising the foregoing compositions are also disclosed.
Abstract:
PROBLEM TO BE SOLVED: To provide a composition useful in giving thermal stability, improved wear resistance extreme-pressure characteristics, load-transmitting characteristics and/or corrosion resistance, to a lubricant and a functional fluid, to provide the lubricant, and to provide the functional fluid containing the same. SOLUTION: This composition contains: (A) at least one kind of neutral or basic metal salt of an acidic organic compound or at least one kind of boron- containing neutral or basic metal salt; (B) at least one kind of metal deactivator; and (C) at least one kind of compound selected from a group comprising (C-1), (C-2), (C-3), (C-4), and (C-5), wherein the (C-1) is a phosphor-containing amide, the (C-2) is a phosphor-containing ester, the (C-3) is a dithiocarbamate coupled with sulfur, the (C-4) is a sulfur-containing compound expressed by the formula (I), and the (C-5) is a mixture of two or more kinds of compounds selected from the above (C-1) to (C-4).
Abstract:
PROBLEM TO BE SOLVED: To obtain a compsn. which imparts thermal stability, abrasion resistance, extreme pressure properties, corrosion-preventing properties, etc., to lubricants and functional fluids by incorporating a specific neutral or basic metal salt of an acidic org. compd., a metal deactivator, and a specific S- and/or P-contg. compd. into the same. SOLUTION: This compsn. contains a neutral or basic metal salt or B-contg. neutral or basic metal salt of an acidic org. compd. provided the metal is at least one selected from among alkali or alkaline earth metals, Zn, Cu, and Al; a metal deactivator; and at least one compd. selected from among P-contg. amides, P-contg. esters, S-bonded dithiocarbamates, and a compd. of the formula. In the formula, R1 to R4 are each H or hydrocarbyl provided each of R1 and R3 may be G1 or G2; R1 may combine with R2 to form a 4-7C alkylene, and so may R3 with R4; G2 is C(X)R, COOR, CN, R5C=NR6, CON(R)2, or NO2; G1 is G2 or CH2OH; X is O or S; R, R5, and R6 are each R1; when G1 and G2 are both R5C=NR6, then two R6 groups may combine with each other to form a hydrocarbylene group bonded to two N atoms; and x is 1 to about 8.
Abstract:
Nitrogen containing carboxylic compounds useful in reducing hydrogen sulfide are described herein. The compositions of the invention also desirably contain an alkali or alkaline earth metal containing compound.
Abstract:
Lubricants useful in metal working processes, especially cutting, comprise (A) a lubricating oil and (B) a basic alkaline earth metal salt or borated complex thereof. Component B is preferably a basic calcium sulfonate prepared by a specific method. The lubricants may also contain at least one of (C) a specific active sulfur-containing compound and (D) a chlorinated wax.
Abstract:
Lubricants useful in metal working processes, especially cutting, comprise (A) a lubricating oil and (B) a basic alkaline earth metal salt or borated complex thereof. Component B is preferably a basic calcium sulfonate prepared by a specific method. The lubricants may also contain at least one of (C) a specific active sulfur-containing compound and (D) a chlorinated wax.
Abstract:
A method and compositions for reducing friction between relatively slideable components is described comprising applying to a slideably engaging surface of the slideable components a lubricating amount of at least one Newtonian, or non-Newtonian, metal overbased salt of a carboxylic acid wherein the metal is selected from the group consisting of lithium, calcium, sodium, barium, magnesium, and mixtures thereof, and the carboxylic acid comprises at least one linear unsaturated hydrocarbon group containing from about 8 to about 50 carbon atoms. The types of slideable components contemplated include flat bearings, rotating bearings, lead screws and nuts, gears, hydraulic systems, and pneumatic devices. The inventors have discovered that applying a metal overbased salt of the aforesaid carboxylic acids results in a remarkable reduction in static and dynamic coefficients of friction and provides anti-wear protection of an extreme pressure agent without requiring auxiliary friction-modifying agents or auxiliary extreme pressure agents.