212results about "Thickeners" patented technology

The invention provides high-temperature-resistant, mute and long-life bearing lubricating grease and a preparation method of the high-temperature-resistant, mute and long-life bearing lubricating grease, and belongs to the technical field of lubricating materials. The composite additive comprises a special antioxidant, a special anti-wear reagent at extreme pressure, an anti-rust preservative, a microencapsulation self-repairing agent and a noise inhibitor, and a rare earth organic complex can be further introduced as a high-temperature stabilizer according to needs, so that multi-performance synergy is realized. The comprehensive adaptability of the lubricating grease under the high-temperature-resistant condition is remarkably improved, the service life of a bearing is prolonged, energy consumption and noise are reduced, and the lubricating grease has outstanding technical advancement and application and popularization value.

The present invention provides a grease composition and an axle bearing in which the grease composition is sealed.SOLUTION: The grease composition of the present invention contains a base oil, a thickener, and an additive, the additive contains an organic metal salt of a divalent metal and an inorganic metal salt of a divalent metal, the total mass of the metal content of the organic metal salt and the metal content of the inorganic metal salt is 1.00% by mass or more based on the grease composition, and the metal content of the organic metal salt with respect to the total mass of the metal content of the organic metal salt and the metal content of the inorganic metal salt is 0.20 or more on a mass basis.SELECTED DRAWING: None

The object of the invention is a method for the production of lithium complex soap lubricating greases or lithium-calcium complex soap lubricating greases and corresponding lubricating greases produced by this process and their use in slide and rolling bearings.

A grease composition for outboard constant velocity joints, comprising (a) a diurea-based thickener and (b) a base oil containing a synthetic oil and having a kinematic viscosity at a temperature of -20°C measured according to JIS K 2283 of 3,000 to 20,000 mm2 / s.

The invention relates to a method for lubricating and cooling the powertrain of an electric vehicle, said method comprising: a) Providing at least one powertrain component at least partially coated with one or more layers of electrically insulating polymer, b) Contacting said powertrain component of step a) with an aqueous lubricating composition comprising at least one thickening polymer, c) Operating said powertrain component, said at least one partially coated powertrain component being selected from one or more components including an electric motor, a battery, or power electronics. Abstract: Figure 1.

Provided is a rolling bearing with stable sealing properties. This rolling bearing comprises inner and outer rings (2, 3), a plurality of rolling elements, and a contact-type seal member (6) that closes a bearing space between the inner and outer rings (2, 3). The seal member (6) is provided with a seal collapse suppression means (St), a grease flow suppression means (GS), and a radial change amount reduction means (Rcr). The seal collapse suppression means (St) keeps an inner peripheral side portion (13) of the seal member (6) from collapsing inward in the axial direction. The grease flow suppression means (GS) suppresses the flow of grease from the inner peripheral surface of an auxiliary lip (16) to the inner-diameter-side tip of a main lip (15), and brings the main lip (15) into a desired contact state with a seal groove (7). The radial direction change amount reduction means (Rcr) reduces the radial direction change amount of the main lip (15) to a predetermined value or less within the range of an interference fit.

The invention relates to the field of lubricants, and discloses a compound and a preparation method and application thereof, and lubricating grease and a preparation method thereof. The application refers to application of the compound with the structure as shown in the formula (I) in thickening lubricating grease and / or improving the dropping point of the lubricating grease. The compound can be used as a thickening agent, meanwhile, the dropping point of the lubricating grease can be improved, the abrasion resistance, the oxidation resistance and the like of the calcium-based lubricating grease are also obviously improved, and the comprehensive performance of the lubricating grease containing the compound is more excellent.

A grease composition comprising:(i) a mineral base oil containing one or more of fatty ammonium carboxylate salts of formula (I),wherein R1 is selected from C12 to C20 saturated or unsaturated, branched or straight-chain hydrocarbyl groups; X is selected from NH, +NH2 and N—(R4)—NH3+; R2 and R4 are independently selected from C2 to C8 saturated or unsaturated, branched or straight chain hydrocarbyl groups, and may be the same or different; R3 is selected from C12 to C26 saturated or unsaturated, branched or straight-chain hydrocarbyl groups; and n is 1 or 2; and(ii) a simple lithium soap thickener,wherein said lubricating grease composition is prepared by a process comprising the steps of combining the mineral base oil with the one or more fatty ammonium carboxylate salts of formula (I) and then thickening said base oil fatty ammonium carboxylate salt mixture with the simple lithium soap thickener.

A grease of the invention contains a base oil and a thickener, where, when the volumetric-based arithmetic mean particle size of particles contained in the grease measured using laser diffraction / scattering method is A (unit: µm), a formula A ≤ 3 (1) is satisfied.

The present invention addresses a problem of providing a grease composition for speed reducers and speed increasers, excellent in both torque transmission efficiency and leak prevention performance. The grease composition contains a base oil (A) and a urea-based thickener (B), which is used for speed reducers and speed increasers, wherein the particles containing the urea-based thickener (B) in the grease composition satisfy the following requirement (I). Requirement (I): the area-based arithmetic average particle diameter of the particles is 2.0 pm or less, as measured by a laser diffraction / scattering method.

Provided are a rolling bearing that can be used in a highly clean environment, can prevent deterioration of grease used as a lubricant, and can reduce the amount of dust generated not only before decontamination but also after decontamination with hydrogen peroxide or the like, and an actuator including the rolling bearing. A rolling bearing (1) is filled with grease containing a base oil and a thickener. The base oil contains a fluorine oil, and the thickener contains polytetrafluoroethylene resin powder. A worked penetration of the grease is 200 or more and 295 or less.

Lubricating grease composition, which includes: an ester base oil in an amount of 78 to 88% by mass based on the total amount of the lubricating grease composition; and a thickening agent in an amount of 10 to 17% by mass based on the total amount of the lubricating grease composition, wherein the thickening agent contains diurea, expressed by the following formula (1): R 1 -NHCONH-C6H4-CH2-C6H4-NHCONH-R 2 (1) in which R 1 and R 2 Each independently represent one of the following: (A) a cyclohexyl group A; (B) an octyl group B; and (C) an octadecyl group C, and where the diurea, based on R 1 and R 2overall, is such that the cyclohexyl group A occupies 5 to 35 mol% of it, the octyl group B occupies 50 mol% or more of it, and the octadecyl group C serves as the remainder, occupying 5 to 45 mol% of it.

A lubricating grease composition used for lubrication between a plastic part and a metal part, wherein the lubricating grease composition comprises a base oil A calcium sulfonate complex is used as a thickening agent, and as an additive 5 to 20 mass-% of a powdered metal soap based on the total mass of the composition.

The present invention provides a grease composition for constant-velocity joints which comprises (a) a base oil, (b) a diurea-based thickening agent, (c) molybdenum dithiocarbamate, (d) molybdenum dithiophosphate, (e) a perbasic calcium sulfonate, and (f) a neutral zinc sulfonate. This composition is excellent in terms of high-temperature durability and vibration diminution.

A grease composition for a bearing for wheels of an automobile, comprising (a) a base oil, (b) a thickener, and (c) additives, wherein (a) the base oil has a kinematic viscosity at 100°C of 3 to 9 mm2 / s, and (c) the additives comprise (cl) a metal salt of dialkyldithiophosphoric acid, (c2) a metal salt of an organic sulfonic acid, and (c3) a nitrogen- and sulfur-containing heterocyclic compound, and wherein (c3) the nitrogen- and sulfur-containing heterocyclic compound comprises at least one member selected from the group consisting of 2(3H)-benzothiazolethione and 2,5-bis(alkyldithio)-1,3,4-thiadiazole.

To provide a grease composition capable of suppressing putrefaction of a water-soluble cutting oil even when mixed in a cutting oil tank while having a predetermined consistency.SOLUTION: The grease composition contains a base oil (A), a thickener (B), an antiseptic agent (C), and an imide compound (D).SELECTED DRAWING: None

The present invention provides a grease composition that prevents grease leakage and suppresses heat generation inside the bearing even under high-speed rotation conditions, and a grease-filled bearing containing the grease composition. [Solution] The grease composition 7 is sealed in the rolling bearing 1 and is a grease composition containing a base oil and a thickener, wherein the kinematic viscosity of the base oil at 40°C is 12 mm². 2 / s or more 26mm 2 The value is less than / s, at a temperature of 25°C, with a strain of 1 × 10⁻⁶. -5 ~5×10 -3 The maximum storage modulus at a frequency of 1 Hz is in the range of 6,000 Pa to 50,000 Pa.

The present invention relates to a lubricant comprising a base stock selected from hydrocarbons, 50 to 1000 ppm of water, and an alkoxylated alcohol, wherein the alcohol is selected from the group consisting of C4-C 20 The invention also relates to a method for lubricating a mechanical device of an electric vehicle comprising contacting the lubricant with the mechanical device, the use of the alkoxylated alcohol to increase the breakdown voltage of a lubricant having a base stock selected from hydrocarbons, and the use of the alkoxylated alcohol in a lubricant having a base stock selected from hydrocarbons to reduce electrical discharge machining.

Provided is a grease composition that does not contain PFAS (perfluoroalkyl compounds and polyfluoroalkyl compounds) and has a superior ability to prevent the diffusion of oil. This grease composition contains a base oil, a thickener, and a nonionic surfactant. The nonionic surfactant has a surface tension of 22.5-26.5 mN / m when the concentration in PGMEA is 0.05 mass%. The grease composition does not not contain any PFAS (perfluoroalkyl compounds and polyfluoroalkyl compounds).

A lubricant composition comprising: a) 20 to 99.5% by weight of a base oil based on the total weight of the lubricant composition, the base oil having a solubility of at least 3% by weight in the ionic liquid methyltrioctylammonium-bis(fluorosulfonyl)imide at room temperature of 20 °C, the base oil having at least 50% by weight of base oil A based on the total weight of the base oil, base oil A having a solubility of at least 3% by weight in the ionic liquid methyltrioctylammonium-bis(fluorosulfonyl)imide at room temperature of 20 °C, 20 to 99.5% by weight of a base oil based on the total weight of the lubricant composition; and b) 0.5 to 80% by weight of an ionic liquid having an anion of bis(fluorosulfonyl)imide, based on the total weight of the lubricant composition.

The present invention relates to a lubrication system for the propulsion system of an electric or hybrid vehicle, comprising a (per)fluoropolyether polymer as a base oil and at least one thickening agent.

A grease composition includes a thickener, a base oil, and an additive. The additive contains 0.1 to 10% by mass of a molybdenum-containing extreme-pressure agent, 0.1 to 10% by mass of Na sebacate, and 0.1 to 5% by mass of a sulfonate. A penetration of the grease composition is 235 to 370.

To provide a grease composition capable of effectively suppressing early separation due to hydrogen embrittlement, and a grease-sealed bearing in which the grease composition is sealed.SOLUTION: A grease composition 7 comprises a base oil, a thickener and an additive, wherein the additive contains sodium molybdate as an essential component, and contains either a sorbitan-based ester or a metal sulfonate, the metal sulfonate is Ca sulfonate or Zn sulfonate, and a content thereof is less than 3 pts.mass with respect to 100 pts.mass of a total amount of the base oil and the thickener.SELECTED DRAWING: Figure 1

A grease composition for rolling bearings, which contains a diurea thickener represented by formula (2), an ester-based synthetic base oil having a kinematic viscosity at 40 DEG C of 60 mm2 / s or more, 0.2-2.5 mass% of an amine phosphate ester based on the total mass of the composition, and 0.5-4 parts by mass of a carboxylic acid-based rust inhibitor per 1 part by mass of the amine phosphate ester, and does not contain any one of a carboxylate-based rust inhibitor and an amine salt of a fatty acid. (1) R5-NHCONH-R6-NHCONH-R7... (2) (In the formula, R6 represents a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R5 and R7 may be the same or different and represent a cyclohexyl group or a linear or branched alkyl group having 8 to 22 carbon atoms. )

The present disclosure provides polyalphaolefin based lubricants blended with additives which demonstrate significant performance improvements in heat transfer, film integrity, oxidative stability, and energy efficiency.

A grease composition containing a base oil (A), a thickener (B), an organic molybdenum compound (C) and an organic zinc compound (D), wherein the base oil (A) contains a mineral oil (A1), the thickener (B) contains a lithium complex soap (B1), and the base oil (A) has a kinematic viscosity of 100 mm2 / s or more at 40°C.

The instant disclosure provides a grease composition containing an ash-free phosphonate ester mixture, which comprises of an ash-free phosphonate ester mixture of a cyclic phosphonate ester species and an oligomeric phosphonate ester species. The grease composition further includes a metallic soap thickener. The grease compositions disclosed herein demonstrate improved anti-wear protection under very demanding conditions and load carry.