Abstract:
A lubricating oil composition for internal combustion engines having superior rust and corrosion inhibition is disclosed. The composition comprises a major amount of a hydrocarbon oil of lubricating viscosity and a minor amount of conventional additives, including an overbased detergent (such as calcium carbonate or calcium hydroxide) for rust protection and an ashless dispersant (such as the reaction product of substituted succinic acid or anhydrides with amines). The composition also includes a supplemental rust inhibitor (SRI) additive which is a combination of an effective amount of a supplemental rust inhibitor (SRI) additive comprising a combination of (A) R.sub.1 O[C.sub.2 H.sub.4 O].sub.x H and/or R.sub.2 O[C.sub.3 H.sub.6 O].sub.y H with (B) R.sub.3 O[C.sub.2 H.sub.4 O].sub.x [C.sub.3 H.sub.6 O].sub.y H and/or R.sub.4 O[C.sub.3 H.sub.6 O].sub.y [C.sub.2 H.sub.4 O].sub.x H, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are hydrocarbyl radicals selected from alkyl, aryl, alkaryl, and arylalkyl groups or combinations thereof having from about 10 to about 24 carbon atoms; and wherein x and y may vary independently in the range from 3 to about 15.
Abstract translation:公开了一种具有优异的防锈和腐蚀抑制性的内燃机润滑油组合物。 该组合物包含主要量的具有润滑粘度的烃油和少量常规添加剂,包括用于防锈的高碱性洗涤剂(例如碳酸钙或氢氧化钙)和无灰分散剂(例如取代的琥珀酸的反应产物 酸或酸酐与胺)。 该组合物还包括补充防锈剂(SRI)添加剂,其是有效量的补充防锈剂(SRI)添加剂的组合,其包含(A)R 1 O [C 2 H 4 O] x H和/或R 2 O [C 3 H 6 O] y H的组合与 (B)R3O [C2H4O] x [C3H6O] yH和/或R4O [C3H6O] y [C2H4O] xH,其中R1,R2,R3和R4是选自烷基,芳基,烷芳基和芳烷基的烃基或其组合 具有约10至约24个碳原子; 并且其中x和y可以独立地在3至约15的范围内变化。
Abstract:
Lubricating oil additives having superior viscometric and detergent properties are prepared by polymerizing an alkyl(meth)acrylate in a solvent containing a star-shaped polymer.
Abstract:
The new polyethers obtainable by polymerization of an 1,2-epoxyalkane with 8 to 26 carbon atoms, and a tetrahydrofuran in the presence of a hydroxyl compound of the formulaH-OR.sup.1in which R.sup.1 denotes hydrogen, an alkyl radical having 1 to 24 carbon atoms or a hydroxyalkyl radical having 2 to 40 carbon atoms are disclosed together with their use as lubricants.
Abstract:
Water-based metal-working lubricants containing an emulsion-type anionic, soluble oil comprising a low viscosity index (LVI) lubricating oil, sodium sulfonates as an emulsifier, a soluble oil coemulsifier base containing naphthenic acids, potassium hydroxide, anti-rust and anti-microbial agents and an effective amount of block copolymers of ethylene oxide and propylene oxide or other alkylene oxides having a molecular weight between about 800 and about 8,000.
Abstract:
Compositions and methods for suppressing and/or retarding the evaporation of water from dry cooling towers. The compositions contain: from 99.5 to 99.9 wt. percent of a light lubricating oil; 0.1 to 0.5 weight percent of an alkaline earth metal sulfonate and 30 to 150 parts per million of a polyacrylate-based defoaming agent.
Abstract:
A lubricant composition comprising 100 parts by weight of an oil having a lubricating oil viscosity and 0.1 to 50 parts by weight of a copolymer of isobutylene and/or propylene with at least one acrylic ester compound, especially a copolymer of isobutylene with at least one acrylic ester. In said composition, the improving effect of the visocity index is excellent and the composition is excellent in shear stability, thermal resistance, aging resistance, and demulsibility.
Abstract:
A LUBRICATING COMPOSITION COMPRISES A MAJOR PROPORTION OF A MINERAL OIL OF LUBRICATING VISCOSITY AND A MINOR PROPORTION OF A COMBINATION OF ADDITIVES (A) AND (B), ADDITIVE (A) BEING A NITROGEN-FREE RANDOM COPOLYMER OF AN ALKYL ACRYLATE COMPONENT AND AN ALKYL METHACRYLATE COMPONENT WHEREIN THE COPOLYMER IS COMPOSED OF UP TO 65% ALKYL ACRYLATE UNITS BASED ON THE TOTAL NUMBER OF ALKYL METHACRYLATE AND ALKYL ACRYLATE UNITS PRESENT IN THE COPOLYMER, THE ALKYL ACRYLATE COMPONENT IS METHYL ACRYLATE, ETHYL ACRYLATE OR A MIXTURE THEREOF AND THE ALKYL METHACRYLATE COMPONENT COMPRISES AT LEAST 50% ALKYL METHACRYLATE UNITS IN WHICH THE ALKYL GROUP CONTAINS FROM 1 TO 10 CARBON ATOMS, AND ADDITIVE (B) BEING AN ALKALINE EARTH METAL CONTAINING DETERGENT HAVING A TOTAL BASE NUMBER GREATER THAN 20.