18 results about "Lithium soap" patented technology

The invention belongs to the field of lubricants, and relates to a composite solid lubricant for a sprocket shaft group and a preparation method thereof. The composite solid lubricant for the sprocket shaft group is prepared from the following raw materials in percentage by weight: 2-15% of graphite fluoride, 1-4% of terbium-thulium co-doped molybdenum disulfide, 1-3% of organic graphene, 0.07-0.4% of tin powder, 1-11% of polyethylene glycol, 1-7% of a thickening agent and the balance of basic lubricating oil. According to the preparation method, molybdenum disulfide is co-doped with rare earth thulium and terbium, thulium and terbium ions are embedded into molybdenum disulfide layers or replace molybdenum sites through electrostatic adsorption in the hydrothermal reaction process, the layered structure is more compact, oxygenolysis of molybdenum disulfide at high temperature is effectively inhibited, and better oxidation resistance is achieved. The talcum powder is introduced to modify the lithium-based soap, and zinc ions are adopted to modify the talcum powder, so that the dispersibility of the talcum powder is improved, and the thermal stability, wear resistance and water resistance of the lubricant are improved after the talcum powder is compounded with the lithium-based soap.

The invention discloses hectorite composite antibacterial and antioxidant hydrogel and a preparation method and application thereof.The preparation method comprises the steps that hectorite is dispersed in deionized water to obtain dispersion liquid, zwitterionic monomers are added, the dispersion liquid is adsorbed on the surface of hectorite through the interaction between ions, and a zwitterionic monomer-hectorite compound is prepared; adding the zwitterionic monomer-hectorite compound, a main monomer, a cross-linking agent, an initiator and a catalyst into water, fully stirring to obtain a precursor solution, and cross-linking and curing to obtain double-cross-linked hectorite composite hydrogel; the preparation method comprises the following steps: preparing a functional polymer deionized water solution, adding inorganic copper salt, carrying out ultrasonic dispersion, adding EGCG, carrying out a reaction, carrying out centrifugal separation on a final product, washing, and carrying out freeze drying to prepare an EGCG-Cu nano complex; and immersing the bi-crosslinked hectorite composite hydrogel into a deionized water solution of an EGCG-Cu nano complex to fully swell the hydrogel layer, taking out the hydrogel layer, and carrying out vacuum drying to obtain the EGCG-Cu nano hydrogel. The hydrogel material provided by the invention can realize the wound dressing with antibacterial and antioxidant properties at the same time.

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.

The present invention relates to lubricant composition comprising:a corrosion inhibitor comprising A1 and A2:A1: 0.3-3 wt. % of one or more octadecylamine N—C10-20 alkanoyl sarcosinates,A2: 1-5 wt. % of one or more substances selected from lanolin magnesium soap, lanolin calcium soap, lanolin barium soap, lanolin lithium soap, barium petroleum sulfonate and sodium petroleum sulfonate,0.2-2 wt. % of one or more surfactants selected from Span-80, AEO-9 and TX-4;10-40 wt. % of a lubricant base,0.2-2 wt. % of fullerene C60,50-80 wt. % of a solvent selected from D80, D100 and D110, andoptionally, a propellant gas;all wt. % percentages are based on the total weight of the lubricant composition.

The invention provides ultralow-temperature bearing lubricating grease as well as a preparation method and application thereof. The lubricating grease comprises the following components in parts by weight: 80-95 parts of base oil; 10-15 parts by weight of a lithium soap-based thickening agent; 1.5-5 parts by weight of an additive; the base oil is halogen-containing poly-alpha-olefin synthetic oil or a mixture of the poly-alpha-olefin synthetic oil and blend oil, and the blend oil is any one or two of alkyl naphthalene and naphthenic oil; the halogen-containing poly-alpha-olefin synthetic oil is halogen-containing metallocene poly-alpha-olefin synthetic oil, and the kinematic viscosity of the halogen-containing poly-alpha-olefin synthetic oil at 100 DEG C is 1-10 mm < 2 > / s; the poly-alpha-olefin synthetic oil is metallocene poly-alpha-olefin synthetic oil, and the kinematic viscosity of the poly-alpha-olefin synthetic oil at 100 DEG C is 1-10 mm < 2 > / s. The ultralow-temperature lubricating grease disclosed by the invention has relatively good lubricating performance and excellent mechanical stability, oxidation stability, wear resistance, rust resistance and comprehensive performance.

To provide a grease composition exhibiting superior water resistance and superior rust prevention against salt water.SOLUTION: A grease composition comprising a base oil, a thickener containing a calcium soap and a lithium soap, a sorbitan fatty acid ester, and a zinc fatty acid.SELECTED DRAWING: None

The present application provides a textile machine connecting rod bearing grease composition and a preparation method thereof. The grease composition comprises the following components in parts by weight: base oil 80-90 parts, lithium soap thickener 8-15 parts, antioxidant 0-0.5 parts, extreme pressure anti-wear agent 1-4 parts, and rust inhibitor 0.5-2 parts. The base oil is a mineral base oil, and the extreme pressure anti-wear agent is selected from one or more of calcium carbonate, melamine, polytetrafluoroethylene and zinc oxide. The textile machine connecting rod grease composition provided by the present application can effectively solve the problems of anti-fretting wear, bearing sintering load and rust in a humid environment, and prolong the service life of the bearing.

A method for lubricating a work tool, including providing a lubricant composition, the lubricant composition including 72 wt. % to 95 wt. % polyalphaolefin and 5 wt. % to 28 wt. % lithium soap, each in relation to a total weight of the lubricant composition. The method further includes lubricating the work tool with the lubricant composition, the work tool being used to process, package, produce, portion, pick, put together, store, obtain and / or convey foodstuffs, luxury foods, cosmetics, pharmaceuticals and / or feedstuffs. The content of metallocene-catalyzed polyalphaolefin is at least 10 wt. % in relation to the total weight of the lubricant composition, and / or the content of acid-catalyzed polyalphaolefin is at least 10 wt. % in relation to the total weight of the lubricant composition.

The invention relates to a lubricating grease composition as well as a preparation method and application thereof. The lubricating grease composition comprises 60-98 parts by weight of base oil, and based on 100 wt% of the base oil, the base oil comprises 0-90 wt% of mineral oil and 10-100 wt% of synthetic oil; the thickening agent is selected from at least one of lithium soap, composite lithium soap, calcium soap, composite calcium soap, aluminum soap, barium soap, sodium soap, polyurea, polytetrafluoroethylene (PTFE), bentonite and silicate.

The present invention provides a grease composition for rolling bearings, a lubricating oil composition containing a base oil, a composite amide lithium soap as a thickener, 0.5-5 mass% of an amine-based antioxidant, 0.5-5 mass% of a phenolic antioxidant, and 0.1-5 mass% of a carboxylic acid-based rust inhibitor, based on the total mass of the composition, as antioxidants, 0.1-5 mass% of the base oil, based on the total mass of the composition, the present invention relates to a grease composition for rolling bearings, which contains, by mass, 5% of a carboxylate-based rust inhibitor and 0.1-3% of an amine salt of a fatty acid, and which has a 60-order working penetration of 260-320 as measured in accordance with JIS K22207.

The present invention relates to the field of grease technology, and in particular to a high-speed heavy-load bearing grease composition and a preparation method and application thereof. The grease composition comprises: a base oil, a thickener and a high extreme pressure proton type ionic liquid; wherein the base oil comprises mineral oil and synthetic oil; the thickener comprises 12-hydroxy stearic acid lithium soap and C 18 ~C 23 The present invention can significantly improve the mechanical stability and high and low temperature performance of the grease by optimizing the compounding system of the grease composition, and meet the lubrication requirements of bearings under high speed and heavy load conditions while maintaining various performances.

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.

The invention relates to a lubricating grease containing: a) 50 wt.% to 95.8 wt.%, based on the total weight of the lubricating grease, of at least one base oil; b) 4 wt.% to 20 wt.%, based on the total weight of the lubricating grease, of at least one thickener selected from urea thickeners, complex metallic soaps, in particular complex lithium soaps, complex aluminium soaps, complex calcium soaps, simple metal soaps of the elements of the first main group of the periodic table, in particular simple lithium soaps and mixtures thereof; c) 0.2 wt.% to 40 wt.%, based on the total weight of the lubricating grease, of at least one partially crystalline polyalphaolefin at least having a melting peak, measured according to DIN EN ISO 11357-3:2018, of above 10°C, and a degree of crystallinity of 15% to 45%, the degree of crystallinity of the partially crystalline polyalphaolefin being calculated by determining the melting enthalpy of the partially crystalline polyalphaolefin according to DIN EN ISO 11357-3:2018, and dividing it by 2.93 J / g.

Lubricant grease composition, comprising: (a) a base oil; and (b) a thickener wherein the base oil (a) comprises two or more types of synthetic oils, at least one of which (c) is a low-viscosity ester-based synthetic oil with a kinetic viscosity at 40 °C of 5 to 15 mm 2 / s is a kinematic viscosity at 40 °C of the base oil (a) 25 mm 2 / s or less, and the thickener is lithium soap or lithium complex soap, wherein the low viscosity synthetic ester-based oil (c) comprises at least one selected from the group consisting of (d) a synthetic ester-based oil which is an esterified product of a mixture of 2-hexyldecyl alcohol, 2-octyldecyl alcohol, 2-hexyldodecyl alcohol and 2-octyldodecyl alcohol and capric acid, (e) a synthetic ester-based oil which is an esterified product of 2,4-diethyl-1,5-pentanediol and caprylic acid, and (f) a synthetic ester-based oil which is an ester oil consisting mainly of an esterified product of 2-propylheptanol and adipic acid.

The present invention relates to a grease composition for metal-resin lubrication. Provided are a grease composition for which the lubricity between resin and metal is excellent, and a resin sliding member and a resin / metal inter-sliding member in which the use of the grease composition inhibits friction / wear, and in which the operability and long life of the product are improved. A resin grease composition G for a sliding surface made of resin, which contains, as base oil, a fluorine-based base oil (kinematic viscosity at 40°C: 300 mm 2 / s or more) and a synthetic hydrocarbon oil, as thickening agent, a fluorine-based thickening agent and a lithium soap thickening agent or a lithium complex soap thickening agent, as extreme pressure additive, and a fluorine-based surfactant, and a resin sliding member (sliding switch 101) having a sliding surface made of resin using the grease composition G.

The invention provides a grease composition for bearings, the grease composition comprising: (i) a mineral-based oil comprising one or more of the ammonium salts of aliphatic carboxylic acids of formula (I) R1X-(R2)-NH3 + n (-OOCR3) wherein R1 is selected from C12 to C20 saturated or unsaturated, branched or linear hydrocarbyl groups; x is selected from NH, + NH2 and N-(R4)-NH3 +; r2 and R4 are independently selected from a C2 to C8 saturated or unsaturated, branched or linear hydrocarbyl group, and can be the same or different; r3 is selected from a C12 to C26 saturated or unsaturated, branched or linear hydrocarbyl group; and n is 1 or 2; and (ii) a simple lithium soap thickener.

This grease composition comprises a base oil, a thickener, and an additive, wherein: the thickener is lithium soap; the additive includes a molybdenum dialkyl dithiocarbamate and octadecanamide; the ratio of the molybdenum dialkyl dithiocarbamate to the total mass of the grease composition is 0.1%-4.0% by mass; and the ratio of octadecanamide to the total mass of the grease composition is 0.5%-10.0% by mass.

The present invention discloses an anti-rust lubricating chain wax for motorcycles and a preparation method thereof, relating to the technical field of lubricating materials. The anti-rust lubricating chain wax for motorcycles disclosed by the present invention comprises raw materials in the following weight percentages: 67-93.5% of base oil, 5.1-25.6% of composite lithium soap thickener, 2.4-10.5% of tackifier, 0.1-2% of antioxidant, 0.5-5% of extreme pressure anti-wear agent, 0.5-5% of functional additive, 0.05-1% of metal passivator, and the sum of the weight percentages of the raw materials is 100%; the anti-rust lubricating chain wax prepared by this application is applied to the lubrication of extreme pressure motorcycle chains, and has good extreme pressure anti-wear property, rust prevention property and melt solubility stability, and can meet the performance requirements of motorcycle chain wax.