Abstract: The lubricant base oil of the invention has excellent energy-conserving performance, low-temperature viscosity characteristics, and detergency. The composition contains: (A) a lubricant base oil composed of, based on the total base oil amount, 50 to 99.9 mass % of a lubricant base oil having a 100° C. kinematic viscosity of 1 to less than 5 mm2/s, and 0.1 to 50 mass % of a lubricant base oil having a 100° C. kinematic viscosity of 5 to 200 mm2/s, and (B) a viscosity index improver having average Mw of not less than 10000, and a Mw to PSSI ratio of not lower than 0.8×104, wherein the composition contains 0.1 to 50 mass % of component (B) based on the total composition amount, and has a 100° C. kinematic viscosity of 3 to 15 mm2/s and a 150° C. to 100° C. HTHS viscosity ratio of not less than 0.50.

Abstract: The invention provides a lubricating oil composition comprising: a lubricating base oil having a kinematic viscosity at 100° C. of 1-10 mm2/s, a % Cp of 70 or greater and a % CA of not greater than 2; a first viscosity index improver of 0.01-10% by mass, based on the total weight of the composition, wherein the first viscosity index improver is a poly(meth)acrylate having a weight-average molecular weight of not greater than 100,000; and a second viscosity index improver of 0.01-50% by mass, based on the total weight of the composition, wherein the second viscosity index improver is a polymer having a weight-average molecular weight of 100,000 or greater and containing a structural unit represented by the following formula (1) in a proportion of 0.5-70 mol %, the composition having a kinematic viscosity at 100° C. of 4-12 mm2/s and a viscosity index of 140-300.

Abstract: The present invention provides a lubricating oil composition, which is capable to maintain sufficient low-friction (i.e. fuel saving performance) even when the lubricating oil is contaminated with soot and metal abrasion powder, which is excellent in durability with regard to anti-wear property and detergency, as well as oxidation stability, and which is capable to lower the ash content and to sufficiently maintain the performance of exhaust-gas after-treatment device for a long term. The lubricating oil composition comprises a lubricant base oil containing a base oil (X) of which % CP is 70 or more, % CA is 1 or less, viscosity index is 115 or more, and CCS viscosity at ?35° C. is 3000 mPa·s or less, wherein the lubricant base oil, to total mass of the composition, contains following components (A)˜(D): (A) 0.01˜10 mass % of ashless friction modifier; (B) 0.01˜0.2 mass % of phosphorus-containing anti-wear agent as phosphorous content; (C) 0.01˜1 mass % of metallic detergent as metal content; and (D) 0.01˜0.

Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a urea adduct value of no greater than 4% by mass and a viscosity index of 100 or higher, an ashless friction modifier at 0.01-10% by mass and a phosphorus-containing anti-wear agent at 0.01-0.2% by mass as phosphorus, based on the total amount of the composition.

Abstract: The present invention provides a lubricating oil composition comprising: a lubricating base oil including a lubricating base oil component having a urea adduct value of 4% by mass or less, a kinematic viscosity of 25 mm2/s or less at 40° C. and a viscosity index of 120 or greater, wherein the amount of the lubricating base oil component is 10 to 100% by mass based on a total mass of the lubricating base oil, and a poly(meth)acrylate based viscosity index improver including a structural unit represented by general formula (1): wherein R1 represents hydrogen or a methyl group, and R2 represents a straight or branched hydrocarbon group with 16 or more carbon atoms, and wherein the proportion of the structural unit represented by general formula (1) is 0.5 to 70% by mole, the lubricating oil composition having a kinematic viscosity of 4 to 12 mm2/s at 100° C. and a viscosity index of 140 to 300.

Abstract: There is provided a multilayer laminate film with easy unsealability, heat resistance and easy cuttability, having a seal layer (A) and a base material layer (B), the multilayer laminate film containing the seal layer (A) and the base material layer (B) composed of a mixture of 10-50 parts by weight of high-density polyethylene and 50-90 parts by weight of polypropylene, laminated on the seal layer (A) in one layer or two or more layers, wherein the base material layer (B) is composed of one member selected from the group consisting of (a) an ethylene/butene copolymer with density of 0.93 g/cm3-0.94 g/cm3, polymerized using multisite catalyst, (b) high-density polyethylene with a density of 0.945 g/cm3-0.965 g/cm3 and (c) an ethylene/propylene block or random copolymer, further wherein the layer thickness of the seal layer (A) is 1 ?m-20 ?m while the layer thickness of the base material layer (B) is 20 ?m-100 ?m, as well as a packaging container and packaging bag employing it as a lid material.

Abstract: The invention provides a lubricating base oil with a saturated component content of 90% by mass or greater, a proportion of cyclic saturated components of no greater than 40% by mass of the saturated components, a viscosity index of 110 or greater, an aniline point of 106 or greater and an ?-methylene proportion of 14-20% of the total constituent carbons, as well as a lubricating oil composition comprising the lubricating base oil.

Abstract: The present invention provides a lubricating base oil comprising saturated components of 90% by mass or greater, wherein the proportion of cyclic saturated components among the saturated components is not greater than 40% by mass, and by having a viscosity index of 110 or higher and an iodine value of not greater than 2.5. The lubricating base oil of the invention exhibits excellent viscosity-temperature characteristics and heat and oxidation stability while also allowing additives to exhibit a higher level of function when additives are included. The lubricating base oil of the invention is suitable for use in various lubricating oil fields, and is especially useful for reducing energy loss and achieving energy savings in devices in which the lubricating base oil is applied.

Abstract: The lubricating base oil of the invention is characterized by satisfying at least one of the following conditions (a) or (b). (a) A saturated compound content of 95% by mass or greater, and a proportion of 0.1-10% by mass of cyclic saturated compounds among the saturated compounds. (b) The condition represented by the following formula (1). 1.435?n20?0.002×kv100 ?1.450??(1) wherein n20 represents the refractive index of the lubricating base oil at 20° C., and kv100 represents the kinematic viscosity (mm2/s) of the lubricating base oil at 100° C.

Abstract: The lubricating base oil of the invention satisfies at least one of conditions (a) or (b) below. The lubricating oil composition for an internal combustion engine according to the invention comprises the lubricating base oil of the invention, an ashless antioxidant containing essentially no sulfur as a constituent element, and at least one compound selected from among ashless antioxidants containing sulfur as a constituent element and organic molybdenum compounds. Also, a lubricating oil composition for a power train device according to the invention comprises the lubricating base oil of the invention, a poly(meth)acrylate-based viscosity index improver and a phosphorus-containing compound. (a) The saturated component content is 90% by mass or greater, and the proportion of cyclic saturated components among the saturated components is 10-40% by mass. (b) The condition represented by the following formula (1) is satisfied. 1.440?n20?0.002×kv100?1.453 (1) [wherein n20 represents the 20° C.

Abstract: The present invention provides a lubricating oil composition with excellent torque capacity and shifting characteristics suitable for use as automatic or continuously variable transmission fluids, which composition comprises a base oil and, on the basis of the total mass of the composition, (A) a sulfonate detergent in an amount of 0.01 to 0.3 percent by mass in terms of metal (MeA); (B) a salicylate detergent in an amount of 0 or more than 0 and 0.1 percent by mass or less, in terms of metal (MeB); and (C) a boron-containing succinimide type ashless dispersant in an amount of 0.001 to 0.1 percent by mass in terms of boron (BoC); (MeB)/(MeA) being 0, or greater than 0 and 1.5 or less, and (MeA)/(BoC) being from 0.001 to 20.

Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a urea adduct value of no greater than 4% by mass and a viscosity index of 100 or higher, an ashless friction modifier at 0.01-10% by mass and a phosphorus-containing anti-wear agent at 0.01-0.2% by mass as phosphorus, based on the total amount of the composition.

Abstract: The present invention provides a lubricating oil composition, which is capable to maintain sufficient low-friction (i.e. fuel saving performance) even when the lubricating oil is contaminated with soot and metal abrasion powder, which is excellent in durability with regard to anti-wear property and detergency, as well as oxidation stability, and which is capable to lower the ash content and to sufficiently maintain the performance of exhaust-gas after-treatment device for a long term. The lubricating oil composition comprises a lubricant base oil containing a base oil (X) of which % CP is 70 or more, % CA is 1 or less, viscosity index is 115 or more, and CCS viscosity at ?35° C. is 3000 mPa·s or less, wherein the lubricant base oil, to total mass of the composition, contains following components (A)˜(D): (A) 0.01˜10 mass % of ashless friction modifier; (B) 0.01˜0.2 mass % of phosphorus-containing anti-wear agent as phosphorous content; (C) 0.01˜1 mass % of metallic detergent as metal content; and (D) 0.01˜0.

Abstract: The present invention provides a lubricating oil composition which has excellent anti-wear properties for a metal pulley and a metal belt and initial anti-shudder properties and can retain the anti-shudder properties for a long period of time, suitable for use in a continuously variable transmission with a slip-controlled wet clutch and a metal belt. The lubricating oil composition comprises a lubricating base oil, (A) an alkylsalicylic acid metal salt and/or an (overbased) basic salt thereof, wherein the component ratio of the monoalkylsalicylic acid metal salt is from 85 to 100 percent by mole, the component ratio of the dialkylsalicylic acid metal salt is from 0 to 15 percent by mole and the component ratio of the 3-alkylsalicylic acid metal salt is from 40 to 100 percent by mole; (B) a specific nitrogen compound; and (C) a phosphorus-containing anti-wear agent.

Abstract: The present invention provide a lubricating oil composition suitable for internal combustion engines, which composition is excellent in thermal/oxidation stability and can inhibit the increases of the viscosity and acid number even in the presence of NOx and can be used for a long period of time or provide a lubricating oil composition particularly suitable for diesel or direct injection engines equipped with an exhaust-gas after-treatment device such as DPF or various catalysts, which composition is excellent in high-temperature detergency and base number retention properties and further can achieve the effect of inhibit wear caused by soot contamination in the oil occurring significantly when the content of phosphorus compounds such as ZnDTP is decreased, at a high level and can inhibit the exhaust-gas after-treatment device from being adversely affected.

Abstract: The invention provides a lubricating base oil with a saturated component content of 90% by mass or greater, a proportion of cyclic saturated components of no greater than 40% by mass of the saturated components, a viscosity index of 110 or greater, an aniline point of 106 or greater and an ?-methylene proportion of 14-20% of the total constituent carbons, as well as a lubricating oil composition comprising the lubricating base oil.

Abstract: The present invention provides lubricating oil compositions having excellent anti-wear properties and anti-fatigue properties as well as excellent low temperature fluidity, particularly suitable for automatic transmissions and/or continuously variable transmissions, and internal combustion engines. The compositions comprises (A) a base oil with a kinematic viscosity at 100° C. of 1 to 8 mm2/s, a pour point of ?15° C. or lower, an aniline point of 100° C. or higher, the saturates of the base oil containing 40 percent by mass or more of paraffins, 25 percent by mass or less of one ring naphthenes, and 35 percent by mass or less of two to six ring naphthenes, as the main component, and (B) 0.005 to 0.4 percent by mass of a metallic detergent, (C) 0.005 to 0.2 percent by mass in terms of nitrogen of a succinimide-type ashless dispersant, (D) 0.005 to 0.2 percent by mass in terms of phosphorus of a phosphorus-containing anti-wear agent, and (E) 0.

Abstract: A lubricating oil composition for transmissions comprises a lubricating base oil comprising (A) a lubricating base oil so adjusted to have a kinematic viscosity at 100° C. of from 1.5 to 5 mm2/s and a % CN of from 10 to 60 (B) a mineral lubricating base oil having a kinematic viscosity at 100° C. of from 10 to 50 mm2/s and a sulfur content of from 0.3 to 1 percent by mass and (C) a synthetic oil composed of carbon and hydrogen and having a number average molecular weight of from 2,000 to 20,000, in respective specific amounts and (D) an extreme pressure additive of from 0.05 to 2 percent by mass, based on the total amount of the composition, of comprising a phosphorus-based extreme pressure additive, a sulfur-based extreme pressure additive and/or a phosphorus-sulfur-based extreme pressure additive, wherein in the composition, the phosphorus content (P) is from 0.01 to 0.05 percent by mass, the total sulfur content (S) is from 0.05 to 0.3 percent by mass, and the P/S ratio is from 0.10 to 0.40.

Abstract: A lubricating oil composition which comprises a lubricant base oil and, incorporated therein, (A) from 0.01 to 0.2 mass % of a polyol compound having from 2 to 20 carbon atoms, (B) from 0.03 to 0.05 mass %, in terms of the amount of boron, of an alkali metal borate, (C) from 0.05 to 0.2 mass %, in terms of the amount of nitrogen, of an ashless dispersant, and (D) from 0.1 to 0.4 mass %, in terms of the amount of an alkaline earth metal, of an alkaline earth metal sulfonate having a total base number of 250 mg-KOH/g or more, the percentages being based on the total amount of the composition. The lubricating oil composition can simultaneously enhance the dynamic and the static friction coefficients in a wet clutch, and is suitable for use particularly in an automatic transmission.

Abstract: Lubricating oil compositions for transmissions comprise (A) a mineral lubricating oil having a kinematic viscosity of from 2.3 to 3.4 mm2/s and a % Cp of 70 or higher defined by ASTM D 3238, as a base oil, (B) a phosphorus compound in an amount of from 0.025 to 0.05 percent by mass in terms of phosphorus based on the total mass of the composition, and (C) a viscosity index improver in such an amount that the composition has a kinematic viscosity of from 5.0 to 6.0 mm2/s, sulfur being contained in an amount of 0.15 percent by mass or less in the composition. The lubricating oil compositions are excellent in fuel efficiency and capable of improving the durabilities of gears and clutches, leading to long lasting gear change characteristics.