Abstract:
An electrical system includes a motherboard including a receptacle that provides a first plurality of electrical connectors and an auxiliary card including an extension defining a second plurality of electrical connectors. The extension is fixedly coupled to the receptacle to substantially fix the position of the auxiliary card with respect to the mother board and to electrically connect the first plurality of electrical connections and the second plurality of electrical connections. An electrically-conductive lubricant is disposed between the extension and the receptacle.
Abstract:
The present invention relates to a non-hydroxide grease composition comprising a base oil and a thickener which comprises amorphous hydrophilic silicon oxide particles and one or more metal salts of different organic acids, wherein the silicon oxide particles have a BET specific surface area of at least 50 m2/g and wherein the amount of the metal salt(s) is 4-25% by weight, based on the total weight of the grease composition. The present invention further relates to a method for manufacturing said grease composition and the use of said grease composition for lubricating a bearing and in couplings and gearings.
Abstract:
In a synthetic resin-made thrust sliding bearing, a silicone grease whose base oil is a silicone oil, whose coefficient of kinematic viscosity at 25° C. is not less than 100 cSt and not more than 500,000 cSt, and which contains a thickener so as to set its worked penetration to not less than 200 and not more than 400 is interposed at sliding interfaces between, on the one hand, an upper surface of a lower annular flat plate-shaped portion defining a bottom surface of a lower annular recess and a lower surface of an upper annular flat plate-shaped portion and, on the other hand, an upper surface and a lower surface of a thrust bearing piece which are respectively brought into sliding contact with the upper and the lower surface.
Abstract:
The invention provides a grease composition containing a thickener and a base oil, wherein the base oil contains (a) a hydrocarbon oil extracted from Botryococcus braunii and/or (b) a hydrocarbon oil obtainable by hydrogenating the hydrocarbon oil (a).
Abstract:
A lubricating formulation prepared from a blend of components comprised of 35-55% of a first base oil; 30-50% of a second base oil; 0.5-5% of a hydrophobic fumed silica; and 1-10% of a hydrophilic fumed silica, wherein the hydrophobic fumed silica and the hydrophilic fumed silica are introduced during formulation so that the hydrophobic famed silica and the hydrophilic fumed silica are pulverized, discharged and dissolved under a surface the blend during formulation.
Abstract:
The invention provides a grease composition containing a thickener and a base oil, wherein the base oil contains (a) a hydrocarbon oil extracted from Botryococcus braunii and/or (b) a hydrocarbon oil obtainable by hydrogenating the hydrocarbon oil (a).
Abstract:
Fluorinated lubricants of formula: T-O-[A-B]z-[A-B′]z′-A-T′ (I) wherein: A=—(X)a—O-A′-(X′)b wherein A′ is a perfluoropolyether chain comprising units (CF2O), (CF2CF2O), (CF2CF2CF2O), (CF2CF2CF2CF2O); X, X′=—CF2—, —CF2CF2—; a, b=0 or 1; B derives from olefins, of which at least one homopolymerizable by radical route, of formula: —[(CR1R2—CR3R4)j(CR5R6—CR7R8)j′]— (Ia) wherein j=1-5, j′=0-4 and 2
Abstract:
Provided is a grease composition with a long service life under high-temperature conditions, considerable low-evaporability, and incombustibility.The invention provides a grease composition comprising, as a base oil, an ionic liquid formed of a cation and an anion and having an ion concentration of 1 mol/dm3 or more as measured at 20° C., and a thickener, wherein the grease composition has a dropping point of 260° C. or higher.