Abstract:
PROBLEM TO BE SOLVED: To provide a defoamer system for diesel fuel. SOLUTION: The defoamer composition for diesel fuel includes (i) a mixture of silicone (A) and (B) or (ii) silicone (C), wherein silicone (A) is a polysilicone represented by chemical formula 1, silicone (B) is a polyether having a silicone represented by chemical formula 2, and silicone (C) is a polyvalent/polyether/phenol silicone represented by chemical formula 3. Each symbol has specific definition. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
Provided is a heat conductive silicone grease composition including (A) 100 parts by mass of an organopolysiloxane containing 2 or more alkenyl groups bonded to silicon atoms within each molecule, (B) an organohydrogenpolysiloxane containing 2 or more hydrogen atoms bonded to silicon atoms within each molecule, in sufficient quantity to provide from 0.1 to 5.0 hydrogen atoms bonded to silicon atoms within the component (B) for each alkenyl group within the component (A), (C) 100 to 2,200 parts by mass of a heat conductive filler, (D) an effective quantity of a platinum-based catalyst, and (E) an effective quantity of an addition reaction retarder, in which the component (C) includes more than 90% by mass and no more than 100% by mass of an indium powder with an average particle size of 0.1 to 100 µm. Also provided is a heat conductive silicone cured product obtained by curing the above composition by heating at a temperature equal to, or greater than, the melting point of the indium powder. Further provided is an electronic device including an electronic component, a heat radiating member, and a heat conductive member including the above cured product disposed between the electronic component and the heat radiating member. Still further provided is a method of curing the above composition. Even further provided is a method of forming a heat conductive member between an electronic component and a heat radiating member. The above heat conductive silicone grease composition generates a suitably thin cured product with excellent thermal conductivity that prevents problems such as the contamination of components other than the coated component, and the leakage of oily materials from the product if used over extended periods.
Abstract:
A process for lubricating a container, such as a beverage container, or a conveyor for containers, by applying to the container or conveyor, a thin continuous, substantially non-dripping layer of a liquid lubricant. The process provides many advantages compared to the use of a conventional dilute aqueous lubricant.
Abstract:
An antifoam additive for hydrocarbon oils and in particular fuel oils comprises the combination of an antifoam agent and an ashless dispersant.
Abstract:
The lubricant composition of the present invention is characterized in that 1 ppm to 500 ppm of polysiloxane with a viscosity of 1,000 mm /s to 100,000 mm /s at 40 DEG C and 1 ppm to 5,000 ppm of ethylene glycol-propylene glycol polymer or a derivative thereof are blended with a base oil with a viscosity of 10 mm /s to 700 mm /s at 40 DEG C. Because the lubricant composition of the present invention has excellent anti-foaming property, particularly in lubricants of high viscosity and at higher temperature, the composition is useful as a lubricant composition for use as bearing oil such as a lubricant for paper machine, hydraulic oil for injection molding press, and a lubricant for film orientation machine.
Abstract:
The electroviscous suspension is based on a mixture of aqueous silica gel with silicone oil as the liquid phase to which a dispersant is added. The dispersant consists of amino functional or silicon-functional polysiloxanes having a molecular weight above 800. The concentration of the dispersant is from 1 to 30% by weight and preferably from 5 to 20% by weight, based on the silica gel particles. Electroviscous suspensions such as these are distinguished by the fact that they are highly compatible with elastomeric materials, non-sedimenting, non-inflammable and physiologically acceptable. In addition, they are heat- and freeze-resistant over a wide temperature range and are largely unaffected by temperature and pressure in their viscosity.
Abstract:
PROBLEM TO BE SOLVED: To provide dry film lubricant coatings 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.SOLUTION: 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.