摘要:
Disclosed is a lubricating oil for compression-type refrigerator comprising, as a main component, a polyoxyalkyleneglycol derivative represented by the general formula: R1[(OR2)mOR3]n wherein symbols are as defined in the specification. Said lubricating oil has a favorable compatibility with refrigerants and an excellent lubricating property, and is utilized as the lubricating oil for compression-type refrigerator employing hydrogen-containing fluorocarbon compound refrigerants including R-134a or fluorocarbon compound refrigerants without hydrogen.
摘要:
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.
摘要:
A high performance lubricant that includes a silicone wax that has been dissolved in solvent, emulsified or suspended in an inert carrier is described. In addition, a method is discussed of lubricating the solid surfaces of moving parts with a relatively water resistant, dry lubricant. The lubricant repels water and sheds dirt. Thus, this lubricant is particularly useful for lubricating high performance products that are used in a dirty environment.
摘要:
The invention is a lubricant intended primarily to facilitate removal of arrows from targets after shooting. The lubricant consists of approximately 70% silicone lubricant and 30% hexane. The lubricant is preferably applied using an applicator, which could be an elongated housing with a threaded hole in each end, having a threaded plug for each hole, the applicator having absorbent material holding the lubricant. Immediately before shooting, the archer removes one or both plugs, and thrusts the arrow into the absorbent material to the desired depth, so that the point and shaft of the arrow receive the lubricant. The arrow can then be easily removed from its target after shooting. A container with a dauber for dispensing lubricant can be provided, alternatively.
摘要:
A mold releasing agent comprising a silicon-containing compound represented by the formula:R.sup.1.sub.n SiR.sup.2.sub.4-nwherein R.sup.1 is ##STR1## (R.sup.3 and R.sup.4 are a hydrocarbon group having 1 to 4 carbon atoms), R.sup.2 is a hydrocarbon group having 1 to 4 carbon atoms or a halogenated hydrocarbon group having 1 to 4 carbon atoms, n is 3 or 4, and a silicon- and/or fluorine-containing compound having at least two hydroxyl groups or alkoxyl groups in one molecule. The mold releasing agent of the present invention is excellent in mold releasing property, has a long life, provides a good surface finishing of molded article, and has no influence on secondary processability.
摘要:
A bearing grease composition for ABS pumps comprises: a silicone oils having a viscosity of 100 to 1,000 cSt (at 25 degree-C.), the silicone oil serving as essential components of a base oil portion, and a diurea compound, as a thickening agent, at the compounding ratio of 2 to 30%-wt, the diurea compound having a general formula of: R.sub.1 --NHCONH--R.sub.2 --NHCONH--R.sub.3 wherein R.sub.2 indicates an aromatic bivalent hydroxyl group having the number of carbon atoms of 8 to 16, and R.sub.1 and R.sub.3 respectively indicate a saturated straight chain alkyl group having the number of carbon atoms of 6 to 18, and a cyclohexyl group, and wherein the ratio of the saturated straight chain alkyl group to the cyclohexyl group is within a range of 5 to 95%-mol to 95 to 5%-mol. The grease composition does not give any adverse effects on rubber materials, such as natural rubbers or EPDM's, stably maintains its satisfactory performance over a wide range from very low temperatures to ultra low temperatures, and advantageously increases its durability particularly under a high-temperature environment.
摘要翻译:ABS泵的轴承润滑脂组合物包括:粘度为100至1000cSt(25℃)的硅油,用作基油部分的主要组分的硅油和作为增稠剂的二脲化合物 试剂,配混比为2〜30重量%,具有以下通式的二脲化合物:R1-NHCONH-R2-NHCONH-R3,其中R2表示碳原子数为8〜16的芳香族二价羟基, R 1和R 3分别表示碳原子数为6〜18的饱和直链烷基和环己基,其中饱和直链烷基与环己基的比例在5〜 95%-mol至95至5%mol。 润滑脂组合物不会对橡胶材料(如天然橡胶或三元乙丙橡胶)产生任何不利影响,在很低的温度到超低温的范围内稳定地保持其令人满意的性能,并且有利地增加其耐久性,特别是在高温环境下 。
摘要:
A synthetic ester composition exhibiting thermal and oxidative stability which comprises the reaction product of: a branched or linear alcohol having the general formula K(OH).sub.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 C.sub.5 to C.sub.13 ; wherein the synthetic ester composition has between 5-35% unconverted hydroxyl groups, based on the total amount of hydroxyl groups in the branched or linear alcohol.
摘要:
The invention provides a fluid composition for a fluid coupling, which is excellent in viscosity stability and torque stability, and comprises a polyorganosiloxane base oil having a viscosity of 3,000-500,000 mm.sup.2 /sec at 25.degree. C. and at least one 5-membered heterocyclic compound incorporated in a proportion of 0.01-3.0 wt. % based on the total weight of the composition, said 5-membered heterocyclic compound being selected from the group consisting of thiadiazole derivatives and thiazole derivatives, both, having at least one monovalent group represented by the formula --S.sub.x --R.sup.6 in which R.sup.6 is a saturated or unsaturated monovalent group or atom composed of at least one atom selected from a carbon atom, a hydrogen atom, an oxygen atom, a nitrogen atom and a sulfur atom, and x is a number of 1 or greater.
摘要:
Lubricant base materials containing ester groups may be stabilised by adding a small quantity of carbodiimides and the service life of lubricants manufactured therefrom may be decisively extended.
摘要:
A silicone composition containing: (A) 100 parts by weight of organopolysiloxane; 0.1 to 50 parts by weight of thickening agent (C) 0.01 to 20 parts by weight of fluorine-containing surfactant; and (D) 0.1 to 20 parts by weight of volatile water-soluble solvent.