摘要:
The invention relates to the use of ionic liquids for improving the lubricating effects of synthetic, mineral and native oils. The invention also relates to, in particular, an improved lubricating composition that is protected against thermal and oxidative attacks.
摘要:
The invention relates to lubricating grease compositions, having a base oil mixture based on oils having viscosities (ISO VG 2 to ISO VG 1500) that are standard for industrial lubricants, an ionic liquid, a thickening agent, e.g. based on a polyurea compound and conventional additives that can be used at current service temperatures that are higher than 120°C to 260°C, in particular at a service temperature in the region of high service temperatures that are higher than 180°C to 260°C and also at low temperatures as low as -6O°C. The invention also relates to a method for producing said type of lubricating grease compositions.
摘要:
The invention relates to a lubricant composition containing a polyurethane and a lubricant, wherein different lubricating greases and oils can be used as lubricant. The lubricant composition can be easily applied on the place to be lubricated by pouring or processed into shaped parts. The lubricant composition is characterized by excellent, long-lasting self-lubricating properties and high temperature resistance.
摘要:
The invention relates to lubricating grease compositions which consist of (a) an oil based on hydrocarbons; (b) a perfluorinated polyalkyl ether oil of the general formula A' - (O-CF2)v-(O-C2F4)w-(O-C3F6)x-(O-C4F8)y-(O-CF2CF(CF3))z-O-A'', in which A' is equivalent to -CF3, -C2F5, -C3F7, -CF2T, T being H or Cl, and v, w, x, y and z are integers ≥ 0; (c) a diurea as the thickening agent; (d) conventional additives; and (e) organic and inorganic solid lubricating grease compositions. The invention also relates to a process for preparing said lubricating grease compositions.
摘要:
The invention relates to the use of ionic fluids for the production of water-resistant lubricating grease compositions, which are employed in a temperature range of at least -30°C to at least 180°C and have good anti-corrosion properties.
摘要:
The invention relates to the use of ionic fluids for the production of water-resistant lubricating grease compositions, which are employed in a temperature range of at least -30°C to at least 180°C and have good anti-corrosion properties.
摘要:
A lubricating grease composition comprises a basic oil, a smaller proportion of thickener based on a polycarbamide compound, as well as ordinary additives. The basic oil is an ester of an aromatic di-, tri- or tetracarboxylic acid and one or more C7-C18 alkanols, and the thickener is the reaction product of a compound or formula A(B)n (I), and an amine of formula H2N-R (II), where A denotes CH4-n, B is an aromatic mono- or diisocyanate residue, n = 1, 2 or 3, and R is an alkyl or alkenyl residue with 8 to 22 C atoms or an aryl residue with 6 to 10 C atoms. The mixture of basic oil and thickener has a consistency with a penetration of 220-385, 0.1 mm.
摘要:
Cette graisse lubrifiante contient une huile de base et une proportion moins importante d'un épaississant à base d'un composé polycarbamide, ainsi que les additifs habituels. L'huile de base est l'ester d'un acide dicarboxylique, tricarboxylique ou tétracarboxylique aromatique avec un ou plusieurs alcanols C7-C18. L'épaississant est un produit de la réaction entre un composé correspondant à la formule A(B)n (I) et une amine correspondant à la formule H2N-R (II), où A = CH4-n, B = résidu mono-isocyanate ou di-isocyanate, n = 1 à 3, R = résidu alkyle ou alcényle avec 8 à 22 atomes de C ou résidu aryle avec 6 à 10 atomes de C. Le mélange d'huile de base et d'épaississant a une consistance dont la pénétration est de 220 à 385, 0,1 mm.