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:
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:
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:
Dry film lubricant coatings are provided by using a silicone resin binder, either as an aqueous emulsion or in a solvent-based system, to fix an alkaline earth metal fluoride to a substrate. The compositions used to apply the coatings may also include relatively minor amounts of xylene, ammonium benzoate, a wetting agent, and/or a porosity-inducing agent - although none of those additives remains in the cured coating. Multi-layer dry film lubricant coatings are also disclosed, with the multi-layer coating having a basecoat layer as described above, and a topcoat layer made of a layer-lattice solid such as graphite or molybdenum disulfide, and a silicone resin, aluminum phosphate or an alkali metal silicate binder.
Abstract:
A novel energy hydraulic media is disclosed comprising a microgel dispersion. The microgel dispersion is a Non-Newtonian fluid. This microgel dispersion is useful in devices that utilize a hydraulic fluid, such as hydraulic energy transmission systems and mechanical energy absorbing devices. Examples include hydraulic brake systems, liquid springs, and dynamic damping devices such as aircraft landing gear shock struts, car bumpers, and automobile shock absorbers. Methods of transmitting hydraulic energy and for dissipating kinetic energy using this microgel dispersion are also disclosed.
Abstract:
A refrigerator oil composition prepared by blending a base oil comprising a mineral or synthetic oil with at least one member selected from the group consisting of metal salts of inorganic phosphoric acid (e.g. potassium phosphate), amine salts of inorganic phosphoric acid (e.g. octylamine salt of phosphoric acid), metal salts of organic phosphoric acid (e.g. dipotassium lauryl phosphate), amine salts of organic phosphoric acid (e.g. monooctylamine salt of dioleyl phosphate), metal salts of organic phosphonic acid (e.g. dipotassium oleylphosphonate), amine salts of organic phosphonic acid (e.g. octylamine salt of dilaurylphosphonic acid), metal salts of organic phosphorous acid (e.g. sodium dioleyl phosphite), and amine salts of organic phosphorous acid (e.g. oleylamine salt of dioleyl phosphite). The composition has an excellent lubricating performance, improves the lubricity of the interface between an aluminum material and a steel material, can inhibit seizure and wear, and is suitable as a lubricating oil for refrigerators using a hydrochlorofluorocarbon refrigerant which does not cause environmental pollution, such as R134a.
Abstract:
Water-in-oil emulsions are disclosed that comprise: a) water; b) from about 10 to 65 % by weight of an oil; and c) an emulsification system comprising a polysiloxane polyalkyl polyether copolymer and a phthalic anhydride derivative, substantially permanently maintaining the water and oil as an emulsion, the emulsification system being substantially free from aluminum and zirconium salts, the emulsion being at a pH of from about 5 to 10.