摘要:
Additive for fuels and lubricants containing spherical layered structure onion-like particles, containing solvent and dispersed therein carbon nanosized spherical clusters CNOs to the extent from 1 to 500 nm; these clusters consist of laminated partially closed cockleshell-like form graphene layers with substituents; and the additive for fuels and lubricants has the following ratio of components, wt. %: * - carbon nanosized spherical clusters - 10- 6 - 10- 1 ; • - solvent - rest. Additive for fuels and lubricants is used in the capacity of antifriction, antiscoring and anti-oxidant components in the production of petroleum, bioethanol, biodiesel fuels, oils, greases and technical fluids with anticorrosive and antifrictional properties.
摘要:
A process for the preparation of a rubber extender oil composition having a polynuclear aromatics content of at most 3 wt.% (IP346) is provided. A hydrotreated paraffinic base oil having a polynuclear aromatics content of at most 3 wt.% is blended with a hydrotreated naphthenic base oil having a polynuclear aromatics content of at most 3 wt.%.
摘要:
Disclosed is a machining fluid admixture for cooling and lubricating a workpiece/tool interface, wherein the admixture comprises a major amount of n-propyl bromide and a minor amount of a lubricant. In other embodiments, the machining fluid consists essentially of about 30.0 to about 99.99 weight percent n-propyl bromide; from about 0.01 to about 30.0 weight percent of a lubricant; and optionally from 0.0 to about 70.0 weight percent of a fluorinated chemical. In still further embodiments, the machining fluid consists essentially of about 45.0 to about 50.0 weight percent n-propyl bromide; from about 0.01 to about 2.0 weight percent of a lubricant; and from 45.0 to about 50.0 weight percent of a fluorinated chemical. In other aspects, the present invention is directed to methods for cooling and lubricating a tool/workpiece interface. The methods comprise the steps of applying an effective amount of the n-propyl bromide-based machining formulations as disclosed herein to a part during a machining operation so as to cool and lubricate the tool/workpiece interface.
摘要:
Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the stress cracking promoting materials from interacting with the polymeric structure of the stressed container to prevent or inhibit stress cracking in such materials. The methods and compositions of the invention are particularly useful in preventing stress cracking in polyethylene terephthalate beverage containers during bottling operations during which the bottle is contacted with aqueous and non-aqueous materials such as cleaners and lubricants that can interact with the polyester to cause stress cracking particularly in the container base. 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.
摘要:
Conditioning oil for use on bowling lanes. The oil contains a mixture of mineral oil, a leveling agent, and an antistatic agent. The mineral oil is a combination of paraffin and petroleum based mineral oils, and in some embodiments, the mixture also includes a thinning agent, a fluorescent whitening agent, and a lubricity agent. In one disclosed embodiment, the lane conditioning oil is provided in an aerosol container which has a propellant for dispensing the oil through a spray nozzle in an aerosol form.
摘要:
A two-cycle oil composition is disclosed comprising a high and low molecular weight polybutene polymer, solvent and mineral oil which has suitable viscosity and exhibits improved smoke performance in the JASO test.
摘要:
A process for reacting certain carboxylic reactants with olefinic compounds then reacting the intermediate prepared thereby with ammonia, a hydrazine or an amine, and/or a reactive metal compound, products prepared thereby and, additive concentrates, lubricating oil and fuel compositions.
摘要:
A biodegradable lubricant which is prepared from: about 60-99 % by weight of at least one biodegradable synthetic ester base stock which 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 oxo acid having a carbon number in the range between about C5 to C10, provided that said branched oxo acid does not include 2-ethylhexanoic acid; wherein the ester base stock exhibits the following properties: at least 60 % biodegradation in 28 days as measured by the Modified Sturm test; a pour point of less than -25 DEG C; and a viscosity of less than 7500 cps at -25 DEG C, about 1 to 20 % by weight lubricant additive package; and about 0 to 20 % of a solvent.
摘要:
A lubricating oil composition suitable for use in low- or medium-speed diesel engines, especially a four-stroke trunk-piston engine, comprises a fuel oil with a residual oil content characterised in that the lubricating oil composition further comprises a "black paint" reducing amount of a hydrocarbyl-substituted phenol, and desirably a dispersant, e.g. a hydrocarbyl-substituted succinimide. Also a method of reducing black paint in a low- or medium-speed diesel engine.
摘要:
A lubricant for a two cycle engine having as a basic oil a polyoxyalkylene glycol derivative expressed by general formula (1) which can realize, when used to lubricate bearing portions and sliding portions of the two cycle engine, remarkable reduction in generation of exhaust smoke, improvement in start-up capability, improvement in cleanability of preventing clogging of an exhaust system with carbon, improvement in cleanability inside the engine at high and low temperatures and improvement in withstand-load properties.