摘要:
A lubricant composition comprising (a) an oil of lubricating viscosity; (b) at least two nitrogen-containing materials, comprising (i) at least one amide of the formula R3C(O)NR1R2 and (ii) at least one tertiary amine being represented by the formula R4R5NR6 where R4 and R5 are alkyl groups of at least 6 carbon atoms and R6 is a polyhydroxyl-containing alkyl group or a polyhydroxyl-containing alkoxyalkyl group; (c) a functionalized dispersant component, and (d) at least one diallyl phosphite, provides good lubricant performance for a continuously variable transmission.
摘要翻译:一种润滑剂组合物,其包含(a)润滑粘度的油; (b)至少两种含氮材料,其包含(i)至少一种式R 3 C(O)NR 1 R 2的酰胺和(ⅱ)至少一种叔胺由式R 4 R 5 NR 6表示,其中R 4和R 5是 至少6个碳原子,R 6是含多羟基烷基或含多羟基烷氧基烷基; (c)官能化分散剂组分,和(d)至少一种亚磷酸二烯丙酯,为无级变速器提供良好的润滑性能。
摘要:
The present invention relates to a method of lubricating a tractor with a lubricating composition containing: an oil of lubricating viscosity and a sulphur-free phosphorus-containing salt of either (i) a hydroxy-substituted di-ester of phosphoric acid, or (ii) a phosphorylated hydroxy-substituted di- or tri-ester of phosphoric acid.
摘要:
Organo-Cobalt complexes having long chain saturated and unsaturated alkyl functionality as multifunctional additives in crankcase oils and the method of preparation thereof.
摘要:
A lubricant and concentrate composition comprises a hindered-phenol-containing diester antioxidant derived from a hydrocarbyl diol or an amide diol. A method for improving the performance of a lubricant composition, especially a lubricant composition for an internal combustion engine, comprises the antioxidant.
摘要:
A composition of an antioxidant of the formula where R3 is an alkyl group of 2 to 6 carbon atoms, and a dispersant or a detergent, is a useful additive package for lubricant compositions.
摘要:
A lubricant containing (a) a synthetic base oil composition having an overall kinematic viscosity of at least about 4.8×10−6 m2/s (4.8 cSt) at 100° C. and a viscosity index of at least about 110; (b) a dispersant-viscosity modifier; and (c) a sulfur-free functionalized hydrocarbyl-substituted phenol detergent provides improved valve train wear, with longer drain intervals, to heavy duty diesel engines.
摘要翻译:一种含有(a)合成基础油组合物的润滑剂,其总运动粘度在100℃下至少为约4.8×10 -6 m 2 / s(4.8cSt),粘度指数为至少约110; (b)分散剂 - 粘度调节剂; 和(c)无硫官能化烃基取代的苯酚清净剂为重型柴油发动机提供改进的气门机构磨损,并具有较长的排水间隔。
摘要:
This invention relates to a low-viscosity lubricating oil and functional fluid compositions, comprising: a major amount of an oil having a kinematic viscosity of up to about 4 cST at 100.degree. C.; and a minor antiwear amount of (A) a compound represented by the formula R.sup.1 R.sup.2 N--C(X)S--(CR.sup.3 R.sup.4).sub.a Z (A-I) wherein in Formula (A-I), R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or hydrocarbyl groups, provided that at least one of R.sup.1 and R.sup.2 is a hydrocarbyl group; X is O or S; a is zero, 1 or 2; and Z is a hydrocarbyl group, a hetero group, a hydroxy hydrocarbyl group, an activating group, or a --(S).sub.b C(X)--NR.sup.1 R.sup.2 group wherein b is zero, 1 or 2; provide that when a is 2, Z is an activating group; and when a is zero, Z can be an ammonium, amine or metal cation. In one embodiment this composition further comprises (B) a phosphorus compound.
摘要:
This invention relates to a composition, comprising: (A) a compound represented by the formula ##STR1## wherein in Formula (A-I), R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrocarbyl groups, X.sup.1 and X.sup.2 are independently O or S, and n is zero to 3; and (B) an acylated nitrogen-containing compound having a substituent of at least 10 aliphatic carbon atoms, In one embodiment, the inventive composition further comprises (C) a second phosphorus compound other than (A), said second phosphorus compound being a phosphorus acid, phosphorus acid ester, phosphorus acid salt, or derivative thereof, In one embodiment, the inventive composition further comprises (D) an alkali or alkaline earth metal salt of an organic sulfur acid, carboxytic acid or phenol. In one embodiment, the inventive composition further comprises (E) a thiocarbamate. These compositions are useful in providing lubricating compositions and functional fluids with enhanced antiwear properties.
摘要:
The invention relates to a method of lubricating a limited slip differential comprising supplying to the limited slip differential a lubricating composition containing (a) an oil of lubricating viscosity, and (b) a C4-30-diester of a dicarboxylic acid. The invention further provides for the use of the C4-30-diester of a dicarboxylic acid as a friction modifier, typically in a limited slip differential.