Abstract:
Dielectric fluids comprising oil fractions derived from highly paraffinic wax are provided. Further provided are processes for making these dielectric fluids comprising oil fractions derived from highly paraffinic wax. The dielectric fluids are useful as insulating and cooling mediums in new and existing power and distribution electrical apparatus, such as transformers, regulators, circuit breakers, switchgear, underground electrical cables, and attendant equipment.
Abstract:
A lubricant composition is provided, wherein a base oil of the lubricant is a single ester having a chemical structure of (chemical formula 15) where an integer n is any of 7, 8 or 9, wherein at least one antioxidant of hindered phenol-based antioxidants, including at least one (3, 5-di-tert-butyl-4-hydroxyphenyl), and hindered amine based antioxidants is included, wherein a triglyceride represented by the structure of (chemical formula 16) where R1, R2 and R3 are unsaturated or saturated straight chain structures or branched structures formed of CxHyOz is included and wherein the viscosity characteristics are no greater than 48 mPa s at 40 °C.
Abstract translation:提供了一种润滑剂组合物,其中润滑剂的基础油是具有化学结构(化学式15)的单一酯,其中整数n为7,8或9中的任一个,其中至少一种受阻酚基的抗氧化剂 包括至少一种(3,5-二叔丁基-4-羟基苯基)和受阻胺基抗氧化剂的抗氧化剂,其中由式(16)结构表示的甘油三酸酯,其中R 1,R 2和R 3为 包括不饱和或饱和的直链结构或由C x H y O z形成的支化结构,其中在40℃下的粘度特性不大于48mPa·s。
Abstract:
This invention is a composition that includes a transesterified fatty acid ester resulting from the reaction of a fatty acid ester, in the presence of an acid, with a hydroxyl-containing compound. The fatty acid esters of the invention are selected from those with a carbon number of eight to twenty. The hydroxyl-containing compound is an alcohol having a carbon number between one and eighteen. The resulting composition is useful as a lubricant, as a heat transfer agent, as a rheological modifier and as a corrosion/moisture inhibitor, among other uses.
Abstract:
A liquid anticorrosion composition adapted for application to ferrous tubular goods is provided comprising an aqueous solution of cyclohexylammonium benzoate and a benzoate salt which is preferably prepared by reacting cyclohexylamine with excess sodium benzoate in an aqueous alcohol solvent. A sealable thread protector end cap which protects the precisely machined threads from physical abuse and which isolates or seals from the environment the corrosion inhibitor composition is also provided.
Abstract:
A lubricant capable of exhibiting a stable lubricating effect for long and comprising a compound which is constituted of carbon, hydrogen, fluorine and ethereal oxygen atoms and wherein a perfluoropolyether chain, a perfluoroalkyl chain and a polyether chain represented by, respectively, the following general formulae A, B and C are contained in its molecule as a combination of A with C, a combination of B with C, or a combination of both of the foregoing combinations: A: -(CnF2nO)m- (wherein n is an integer of 1 to 10, and m is an integer of 1 or above), B: -CnF2n- (wherein n is an integer of 1 to 15) and C: -(CnH2nO)m- (wherein n is an integer of 1 to 6, and m is an integer of 1 or above).
Abstract translation:能够长时间显示出稳定的润滑效果且含有由碳,氢,氟和醚性氧原子构成的化合物的润滑剂,其中分别由以下通式表示的全氟聚醚链,全氟烷基链和聚醚链 A,B和C分子中含有A与C的组合,B与C的组合,或上述两种组合的组合:A: - (C n F 2n O)m - (其中n为 1〜10,m为1以上的整数),B:-CnF 2 n-(其中,n为1〜15的整数),C: - (C n H 2n O)m - (n为1〜6的整数) ,m为1以上的整数)。
Abstract:
Electrorheological fluids are described which comprise a hydrophobic liquid phase, cellulosic particles as a dispersed phase and from about 0.1 up to about 25 % by weight, based on the weight of the hydrophobic liquid phase of at least one functionalized polysiloxane containing at least one functional group which is capableof being absorbed or adsorbed on the surface of the cellulosic particles. The electrorheological fluids of the invention are useful in a variety of applications including flotational coupling devices such as clutches for automobiles or industrial motors, transmissions, brakes or tension control devices; and linear damping devices such as shock absorbers, engine mounts and hydraulic actuators.
Abstract:
An oil composition which contains as an antioxidant a three component mixture comprising (a) phenol or a derivative thereof, (b) an amine or a derivative thereof, and (c) a triazole or a derivative thereof. The mixture provides improved antioxidant properties, especially for electrical insulating oils.