摘要:
An electrical insulating oil composition comprising a heavy reformate as an anti-gassing agent is provided with excellent gassing tendency. In one embodiment, the composition displays a gassing performance of
摘要:
A method of treating an electrically insulating oil, wherein the oil comprises at least one reactive organic sulphur compound. A chemical agent causing a reaction with said reactive organic sulphur compound is added to the oil and said chemical agent comprises an elementary halogen.
摘要:
Vorgeschlagen werden Zusammensetzungen enthaltend Trimethylolpropanester (TMP)-ester der allgemeinen Formel (I) wobei R1, R2, und R3 gleich oder unterschiedlich voneinander eine lineare- oder verzweigtkettige Alkylgruppe mit 5 bis 11 C-Atomen darstellen, der Ester eine Viskosität von kleiner 23 mm 2 /s bei 40°C aufweist und einen Brennpunkt > 300°C hat als dielektrische Isolierflüssigkeit für Transformatoren.
摘要:
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.
摘要翻译: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。
摘要:
The invention provides fluorocarbon refrigerant compositions that offer alternatives, and are considered environmentally safe substitutes, for CFC's and HCFC's. The compositions of the invention are useful as refrigerants, including for use in chillers, aerosol propellants, metered dose inhalers, heat transfer media, gaseous dielectrics, fire extinguishing agents, foam blowing agents, solvents and sterilants. The compositions of the invention are soluble in lubricating oils and are, therefore, particularly useful as R-22 retrofit fluids.
摘要:
A reaction product obtained by reacting a sulphurized olefin with a thiadiazole derivative. The reaction product may be used in a lubricant as an antioxidant, a copper passivator and/or an extreme pressure additive.
摘要:
High oleic acid triglyceride compositions that comprise fatty acid components of at least 75 % oleic acid, less than 10 % diunsaturated fatty acid component; less than 3 % triunsaturated fatty acid component; and less than 8 % saturated fatty acid component; and having the properties of a dielectric strength of at least 35 KV/100 mil gap, a dissipation factor of less than 0.05 % at 25 DEG C, acidity of less than 0.03 mg KOH/g, electrical conductivity of less than 1 pS/m at 25 DEG C, a flash point of at least 250 DEG C and a pour point of at least -15 DEG C are disclosed. Electrical insulation fluids comprising the triglyceride composition are disclosed. Electrical insulation fluids that comprise the triglyceride composition and a combination of additives are disclosed. Electrical apparatuses comprising the electrical insulation fluids and the use of electrical insulation fluids to provide insulation in electrical apparatuses are disclosed. A process for preparing the high oleic acid triglyceride composition is disclosed.
摘要:
Functionalized-phenoxy phosphazenes and use of same as lubricants for magnetic recording media are disclosed. In particular, cyclic phosphazenes having six or eight atoms in the ring structure and having at least one trifluoromethylphenoxy group; hydroxyphenoxy, aminophenoxy, carboxymethyl phenoxy, cyanophenoxy, 2-hydroxyethoxyphenoxy groups or a combination thereof; and, optionally, fluorophenoxy groups.
摘要:
The use of a fluorocompound comprising a perfluoropolyoxyalkyl/alkylene chain with an average molecular weight of not less than 800 and an atomic group of a cyclic/noncyclic polyether as a low-scattering lubricant/surface modifier (such as a water repellant) serves to improve the sliding durability of magnetic recording media.