310results about "Thickeners" patented technology

A lubricating grease for electric vehicle applications includes thickener 6% by weight (wt. %) to 12 wt. %, lubricating oil 57 wt. % to 92.98 wt. %, and surface-active ester 1 wt. % to 10 wt. %. The lubricating grease also includes additives including friction reducer and modifier 0.1 wt. % to 5 wt. %, anti-wear agent 0.1 wt. % to 5 wt. %, and a balance of extreme pressure agent, oxidation inhibitor, and corrosion inhibitor.

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.

Provided are: a grease composition capable of preventing grease leakage and suppressing heat generation inside a bearing even under a high-speed rotation condition; and a grease-sealed bearing in which the grease composition is enclosed. A grease composition 7 is enclosed in a rolling bearing 1 and comprises a base oil and a thickener, wherein: the base oil has a kinematic viscosity at 40°C of less than 40 mm2 / s; the maximum storage elastic modulus at a temperature of 25°C and a frequency of 1 Hz is 10000-50000 Pa; the thickener is a urea compound or barium soap; and the content of the thickener with respect to the total amount of the base oil and the thickener is 5-30% by mass.

A grease composition that includes at least an oil-based medium, a thickener, and a fullerene-like nano-structure. The fullerene-like nano-structure includes a plurality of layers each comprised of a metal chalcogenide composition has a molecular formula of MX2, where M is a metallic element selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), technetium (Tc), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), cadmium (Cd), hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt), gold (Au), mercury (Hg) and combinations thereof, and X is a chalcogen element selected from the group consisting of sulfur (S), selenium (Se), tellurium (Te), oxygen (O) and combinations thereof.

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.

Provided is a grease composition containing a base oil (A), hydrophilic nanofibers (B) having a roughness (d) of 1 nm to 500 nm, and particles (C) having a structure in which the hydrophilic nanofibers (B) are one or more types selected from the group consisting of cellulose nanofibers (B1) and modified cellulose nanofibers (B2), the particles (C) having a hydrophobic group on the outermost surface of the hydrophilic matrix structure, and having a hydrophobic group on the outermost surface of the hydrophilic matrix structure. In the grease composition, the average particle diameter of the particles (C) is 1 nm to 500 nm, and the grease composition has an appropriate oil separation degree and excellent water resistance despite the use of hydrophilic nanofibers.

The invention relates to a forming lubricant for ferrous materials, in particular for forming steel. According to the invention, the forming lubricant comprises at least one mineral having a layered structure and an agent for modifying the layered structure. Advantageously, the mineral is swollen, delaminated, and / or exfoliated by means of the modifying agent. The modifying agent is or preferably comprises a surfactant, which preferably comprises a soap and / or an amine. In one embodiment of the invention, the surfactant is a water-soluble soap, preferably an alkali or alkaline earth salt of a fatty acid, which preferably has a chain length of at least ten carbon atoms. The mineral is advantageously a layered silicate, preferably kaolin or a mineral of the mica group. The invention further relates to a process for producing the forming lubricant and a molded body coated with the forming lubricant.

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.

This patent application relates to the use of non-fluorinated aromatic polymers as additives in fluorinated lubricants.

To provide a lubricant composition suitable for improving valve train wear in medium and / or heavy duty diesel engines.SOLUTION: A medium and / or heavy duty diesel engine crankcase lubricant comprises: one or more base oils with lubricating viscosity; and an antiwear system providing 500 ppm or less of phosphorus and / or 500 ppm or less of zinc from one or more overbased dihydrocarbyl dithiophosphate zinc compounds containing hydrocarbyl groups bonded to a phosphorus atom by an oxygen linker, wherein the hydrocarbyl groups of the antiwear system are provided from secondary alcohols or a combination of secondary alcohols and primary alcohols, the hydrocarbyl groups have an average branching index of 0.72 or less, at least about 50 wt.% of the hydrocarbyl groups are derived secondary alcohols, and the one or more overbased dihydrocarbyl dithiophosphate zinc compounds of the antiwear system have a zinc to phosphorus ratio of less than about 1.12:1.SELECTED DRAWING: None

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 for outboard constant velocity joints includes (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.

To provide a lubricating grease composition that can achieve suppression of oil release while maintaining low torque and good muddy water resistance in a sliding portion between a rubber element and a metallic component.SOLUTION: A lubricating grease composition comprises a base oil, a thickener, and a solid lubricant, wherein the content of the thickener is 2 wt.% or more and 15 wt.% or less relative to the overall weight of the lubricating grease composition, the solid lubricant includes melamine isocyanurate, and the content of the solid lubricant is 10 wt.% or more and 50 wt.% or less relative to the overall weight of the lubricating grease composition.SELECTED DRAWING: None

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.

To provide a grease composition having low torque.SOLUTION: A grease composition comprises a base oil (A) and a thickener (B), wherein when a minor axis and a major axis of the thickener (B) in the grease composition are measured using a dielectric constant observation system of a scanning electron microscope, an aspect ratio (minor axis / major axis) of the thickener (B) is less than 0.23.SELECTED DRAWING: None

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.

To provide a non-fire-spreading grease composition with excellent non-flammability and water resistance, and also to provide a bearing or gear containing the non-fire-spreading grease composition.SOLUTION: The non-fire-spreading grease composition according to the present invention comprises the following materials (a) to (d): (a) as a thickening agent, a diurea compound represented by the following formula (1): R1-NHCONH-R2-NHCONH-R3 (1) (wherein R2 represents an aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3 may be the same or different and represent an aliphatic hydrocarbon group having 8 to 20 carbon atoms or an aromatic hydrocarbon group having 6 to 15 carbon atoms, the proportion of aliphatic hydrocarbon groups in the total of R1 and R3 is 50 to 100 mol%); (b) a base oil having a kinematic viscosity of 300 mm2 / s or more at 40°C; (c) at least one selected from the group consisting of rice wax, carnauba wax, and montanic acid derivatives; and (d) at least one selected from the group consisting of organic sulfonic acid metal salts, sodium sebacate, and glycerin.SELECTED DRAWING: None