Abstract:
Load-carrying properties of gear oils are increased by the addition of triazole derivatives obtained by reacting benzotriazole or an alkylbenzotriazole with alkylphosphates. alkylphosphonates or primary fatty amines, a napthenyl oxazoline or an alkenylsuccinyl mono- or bis-oxazoline.
Abstract:
Provided is a solid lubricant that is non-black in color and capable of reducing industrial waste (environmental conservation), and further capable of achieving a balance among excellent lubricity, moisture absorption resistance, and corrosion resistance in a heavy working region, and a lubricating coating agent including the solid lubricant. A solid lubricant including carrier particles including a lipophilic lubricating component that is at least one of an oil, an extreme-pressure agent, a soap, and a wax between particles of and/or between layers of at least one layered clay mineral selected from the group consisting of natural products and synthetic products of a smectite group, a vermiculite group, a mica group, a brittle mica group, a pyrophyllite group, and a kaolinite group.
Abstract:
Compositions having a plurality of hard particles and a plurality of lubricant nanoparticles are disclosed. Methods of making and using the compositions are also disclosed.
Abstract:
Compositions having a plurality of hard particles and a plurality of lubricant nanoparticles are disclosed. Methods of making and using the compositions are also disclosed.
Abstract:
Disclosed is a magnetic dendrimer compound and a method for preparing the magnetic dendrimer compound, the molecular formula of which is shown in formula (I): Γ(CH 2 ) 3 N (2 n+1 -1) R 1 (2 n+2 -2) R 2 (2 n+1 ) (I). In this formula, Γ indicates magnetic particles coated with SiO 2 on a surface thereof, the magnetic particles having been modified by a silane coupling agent; (CH 2 ) 3 N (2 n+1 -1 )R 1 (2 n+2 -2) is a dendritic group, and R 2 (2 n+1 ) is a lipophilic group, with 0≤n≤100. Further disclosed is a lubricant comprising the magnetic dendrimer compound.
Abstract translation:公开了一种磁性树枝状大分子化合物及其制备方法,其分子式如式(I)所示:“(CH 2)3 N(2 n + 1 -1)R 1(2 n + 2 -2)R 2(2 n + 1)(I)。 在该式中,“表示在其表面上涂覆有SiO 2的磁性颗粒,已经通过硅烷偶联剂改性的磁性颗粒; (CH 2)3 N(2 n + 1 -1)R 1(2 n + 2 -2)是树枝状基团,R 2(2 n + 1)是亲脂基团,0‰‰‰¤ 100。 还公开了包含磁性树枝状聚合物化合物的润滑剂。
Abstract:
[Problems] To provide a lubricating coating agent for plastic working, containing a non-black solid lubricating material, and a metal material coated with the agent, which enable highly difficult forging that has been conventionally difficult to practically apply to anything except lubricating coating films containing a black solid lubricant typified by molybdenum disulfide [Means for solving] The problems can be achieved by means of a lubricating coating agent for plastic working, which is characterized by containing, at 5 mass% or more in terms of solid content ratio in a coating film, a calcium sulfate hydrate with a particular scale-like crystal shape among calcium sulfate hydrates deposited by reacting a sulfuric acid or a sulfate with a calcium compound in water, and a metal material coated with the agent.
Abstract:
The invention concerns a lubricating grease, characterised in that it comprises 70 to 95 wt. % of a mixture containing at least a first fatty acid ester and sorbitan and at least a second fatty acid ester and polyalkoxylated sorbitan, said esters being present in weight amounts, relative to the weight of said mixture, of 10 to 90 % and 90 to 10 % respectively, and 5 to 30 wt. % of at least a thickening agent. The invention also concerns a method for preparing a grease in accordance with the invention, and the use of such a grease as lubricant. The invention further concerns a vehicle wheel comprising the inventive grease.
Abstract:
A grease composition for use as a cable filling material which contains about 75 to 95 parts by weight of a base component of a polyol or ester having a molecular weight of at least about 3000 and about 2 to 20 parts by weight of colloidal particles such as silica. Optionally, an antioxidant component can be added to impart high temperature resistance or a rubber component can be added to improve bleed resistance. Also, an article of manufacture of a cable having a sheath with one of the grease compositions of the invention located therein, and a method for filling the cable with such grease compositions.
Abstract:
An antiwear additive has an alkali metal borate; and a thiadiazole compound. That thiadiazole compound may be a 2,5-dimercapto-1,3,4-thiadiazole, a 2-alkylpolythio-5-mercapto-1,3,4-thiadiazole, or a 2-alkylestermercapto-5-mercapto-1,3,4-thiadiazole. If the thiadiazole compound is a 2-alkylpolythio-5-mercapto-1,3,4-thiadiazole or a 2-alkylestermercapto-5-mercapto-1,3,4-thiadiazole, the alkyl group has from one to twenty carbon atoms. If the thiadiazole compound is a 2-alkylpolythio-5-mercapto-1,3,4-thiadiazole, the polythio group has from two to eight sulfur atoms. This antiwear additive can be used with a base grease in a grease composition.