Abstract:
An aerosol composition includes an admixture of: (a) at least one silicone-based fluid and (b) at least one fluorine-containing propellant that is soluble in the silicone-based fluid. In a preferred embodiment, the propellant includes a hydrofluorocarbon, in particular 1,1,1,2-tetrafluoroethane. An aerosol spray system includes: (a) a container; (b) the aerosol composition described above disposed within the container; (c) a metering device; and (d) a spray head. An aerosol lubricating composition includes the composition described above, wherein the silicone-based fluid is a lubricant. A method of lubricating, includes: (a) directing a container containing the lubricating composition described above at an article in need of lubrication; and (b) spraying the lubricating composition at the article. A flammable aerosol composition includes an aerosol composition which includes an admixture of: (a) at least one silicone-based fluid; and (b) at least one fluorine-containing propellant that is soluble in the silicone-based fluid, wherein the silicone-based fluid is a low viscosity silicone-based fluid. A spray system has improved spray characteristics for the aerosol composition by reducing the flow rate of the composition as it is being dispensed.
Abstract:
The invention concerns a lubricating composition, in the form of an oil-in-water emulsion, based on siloxane and not releasing hydrogen comprising: (a) a polydiorganosiloxane oil non-reactive to the lubricating properties having a dynamic viscosity of the order of 5.10 to 30.10 Pa.s at 25 DEG C; (b) a reactive linear polydiorganosiloxane oil having per molecule at least two OH groups, said polydiorganosiloxane having a dynamic viscosity at 25 DEG C ranging between 5.10 to 30.10 Pa.s; (c) a crosslinking agent soluble in the silicone phase comprising at least two functions capable of reacting with the reactive polydiorganicsiloxane oil (b); (d) a water soluble crosslinking agent; (e) a surfactant; (f) a condensation catalyst capable of catalysing the reaction of oil (b) with the crosslinking agent (c) and/or (d); and (g) water; compositions comprising a soluble polyorganosiloxane soluble in the silicone phase and bearing, before emulsification, condensable hydroxyl substituents being excluded.
Abstract:
A biodegradable two-cycle lubricant which is prepared from an add mixture of: (1) a biodegradable lubricating oil comprising an add mixture of the following components: a complex alcohol ester basestock which comprises the reaction product of an add mixture of the following: a polyhydroxyl compound represented by the general formula R(OH)n wherein R is any aliphatic or cyclo-aliphatic hydrocarbyl group and n is at least 2, provided that the hydrocarbyl group contains from about 2 to 20 carbon atoms; a polybasic acid or an anhydride of a polybasic acid, provided that the ratio of equivalents of the polybasic acid to equivalents of alcohol from the polyhydroxyl compound is in the range between about 1.6:1 to 2:1; and a monohydric alcohol, provided that the ratio of equivalents of the monohydric alcohol to equivalents of the polybasic acid is in the range between about 0.84:1 to 1.2:1; wherein the complex alcohol ester exhibits a viscosity in the range between about 100-700 cSt at 40 DEG C and has a polybasic acid ester concentration of less than or equal to 70 wt.%, based on the complex alcohol ester; and at least one additional basestock, wherein the biodegradable lubricating oil exhibits biodegradability of greater than 60 % as measured by the Sturm test; and (2) an additive package.
Abstract:
The invention concerns a lubricant based on silicone oils or silicone greases and is characterized in that it comprises between 95 and 99 wt.% silicone oil or silicone grease and between 1 and 5 wt.% organic compounds selected from the group comprising trichloromethyl compounds of general formula (I) and having at least one oxygen atom in the sp configuration. The invention provides a highly resistant silicone oil for lubricating metal parts which considerably reduces the wear of these metal parts.
Abstract:
A synthetic ester composition which exhibits thermal and oxidative stability, lower friction coefficient and lower wear, wherein the ester composition comprises the reaction product of a branched or linear alcohol having the general formula R(OH)n, wherein R is an aliphatic or cyclo-aliphatic group having from about 2 to 20 carbon atoms and n is at least 2; and at least one branched mono-carboxylic acid which has a carbon number in the range between about C5 to C13; wherein the synthetic ester composition has between about 5-35 % unconverted hydroxyl groups, based on the total amount of hydroxyl groups in the branched or linear alcohol.
Abstract:
A surface-coated rubber or plastic sliding member having a coating with excellent durability and high slipperiness,wherein the coating comprises a solid lubricant such as molybdenum disulfide, a resin matrix and a reinforcement, said resin matrix comprising a fluoroolefin vinyl ether polymer resin and/or a fluoroolefin vinyl ether/vinyl ester copolymer resin.
Abstract:
A lubricating oil for a refrigerator, characterized as comprising (a) at least one ester represented by general formula (1) wherein R represents a C1 to C18 linear alkyl or a C3 to C18 branched alkyl, R represents H, a C1 to C18 linear alkyl or a C3 to C18 branched alkyl, with the proviso that the total number of carbons contained in the alkyls represented by R and R is 2 to 18 and that when R is H, R represents a branched alkyl, and R represents a C1 to C20 linear alkyl, a C3 to C20 branched alkyl or a C3 to C10 cycloalkyl, and optionally (b) at least one compound selected from the group consisting of an aliphatic polyol ester, a phthalic acid ester, an aliphatic dicarboxylic acid ester, a polyvinyl ether, a hydrocarbon oil and a polyalkylene glycol; a method for lubricating a refrigerator using the lubricating oil; and a hydraulic fluid composition comprising (I) the component (a) or the components (a) and (b), and (II) a coolant.
Abstract:
The invention concerns a composition for preparing metal products designed to be shaped by at least one mechanical process of plastic deformation such as wire drawing, rolling, calendering, forging, swaging and the like, without notable shrinkage of substance. The invention is characterised in that it comprises a film-forming binder, at least an additive reactive with the metal, at least a lubricating additive and at least an anticorrosive additive. The invention also concerns a method for preparing said metal products using the claimed composition.
Abstract:
A lubricating oil comprising an add mixture of the following components: (A) a complex alcohol ester basestock which comprises the reaction product of an add mixture of the following: (1) a polyhydroxyl compound represented the general formula: R(OH)n wherein R is any aliphatic or cyclo-aliphatic hydrocarbyl group and n is at least 2, provided that the hydrocarbyl group contains from about 2 to 20 carbon atoms; (2) a polybasic acid or an anhydride of a polybasic acid, provided that the ratio of equivalents of the polybasic acid to equivalents of alcohol from the polyhydroxyl compound is in the range between about 1.6:1 to 2:1; and (3) a monohydric alcohol, provided that the ratio of equivalents of the monohydric alcohol to equivalents of the polybasic acid is in the range between about 0.84:1 to 1.2:1; wherein the complex alcohol ester exhibits a viscosity in the range between about 100-700 cSt at 40 DEG C and having a polybasic acid ester concentration of less than or equal to 70 wt.%, based on the complex alcohol ester; and (B) at least one additional basestock.
Abstract:
Organosilicone pastes and greases including at least one oily diorganopolysiloxane polymer with a dynamic viscosity at 25 DEG C of at least 500 mPa.s, and at least one alkali-metal or alkaline-earth metal carbonate, but no actual thixotropic agent, wherein said carbonate has a particle size of at most 0.5 mu m and a high BET specific surface area of more than 5 m /g, and is present in an amount of at least 20 wt % based on the total composition. The preparation method is carried out at a low temperature, e.g. 5-40 DEG C.