Abstract:
The present invention relates to an engine oil additive composition, whereby a hydrophobically surface-modified nanodiamond is capable of being stably dispersed in oil for a long time by being used together with a specific dispersant. According to the present invention, the nanodiamond is stably dispersed in the engine oil for a long time, thereby reducing friction and abrasion of the machine such as an engine and thus improving fuel efficiency.
Abstract:
This invention refers to a magnetized intermetallic compound which may be applied as a basic lubricating oil in order to create a high performance finished lubricating oil. Magnetizing the intermetallic compound will confer the ability to the finished lubricating oil to form a magnetic film on the external surface of a solid body, and in so doing will confer to the additive a greater capacity to reduce friction, thus minimizing the effect of wear caused by contact between the surfaces of two bodies of several dynamic systems.
Abstract:
An aqueous working liquid composition for a wire saw comprising the following components (A) to (E): (A) 10 to 60% by weight of at least one selected from the group consisting of polyglycol ethers represented by the following formulae (I) and (II): ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a phenyl group; R.sub.2 represents a hydrogen atom or an acetyl group; and n represents an integer of 1 to 4; (B) 0.1 to 5.0% by weight of at least one selected from the group consisting of organic bentonite and inorganic bentonite; (C) 0.01 to 5.0% by weight of at least one selected from the group consisting of carboxymethyl cellulose (CMC), MgO, methanol, and ethanol; (D) 0.1 to 2.0% by weight of at least one selected from the group consisting of a sodium .beta.-naphthalenesulfonate-formalin condensate and a sodium, potassium, lithium or amine salt of petroleum or synthetic sulfonic acid; and (E) 10 to 70% by weight of water, each based on the total composition weight.
Abstract:
A rock bit for drilling subterranean formations is lubricated with a grease composition made from a high-viscosity synthetic lubricant basestock and a combination of lubricant additives. The grease composition preferably has in the range of from 1 to 20 percent by weight polyisobutylene, in the range of from 50 to 90 percent by weight ethylene-alphaolefin, up to approximately 40 percent by weight polyalphaolefin, and in the range of from 4 to 45 percent by weight lubricant additives. The rock bit grease composition has a viscosity index in the range of from about 250 to 325, and has an absolute viscosity of greater than about 100,000 centipoise at a temperature of approximately 70.degree. F. and at a shear rate of less than about 40 seconds.sup.-1, without the use of solid metal-containing extreme pressure agents or thickening agents. The grease composition forms a lubricant film having enhanced thicknesses, when compared to conventional mineral oil-based greases, to provide excellent rock bit bearing lubrication.
Abstract:
A padding powder suspension or slurry and method for applying a padding powder for lubricating components of printing, copy and facsimile machines such as the photoreceptor drum, photoreceptor belt, wiper and doctor blade. The padding powder is comprised of a mica-group mineral or a mixture of a mica-group mineral and calcium stearate. The method comprises mixing the padding powder with a solvent, for example alcohol, to form a different substance. The mica-group mineral is inert so it does not dissolve in the alcohol. A suspension agent or surfactant may also be mixed with the padding powder and alcohol to keep the padding powder suspended in the alcohol for a longer period of time. The resulting suspension or slurry is then applied on the components. The suspension or slurry may easily be applied with brushes, spray devices, sponge materials or a soft cloth. After the suspension or slurry is evenly applied on the components, the solvent and suspension agent evaporates and the padding powder dries to a thin residue. The result is an evenly distributed lubricant in the correct amount for optimum performance of the component, with no mess or waste of padding powder.
Abstract:
A tire gel balancing composition having a Storage modulus of between 3000 and 15000 Pa and the Specific Gravity less than 1000 kg/m.sup.3 in the temperature range between -20.degree. and +90.degree. C., preferably its Storage modulus is about 9000 Pa, is capable of balancing tires by being able to flow under the vibrations caused by imbalance in a wheel assembly. The composition preferably comprises a mixture of: 1) paraffinic oils, polybutene oils, polyol esters, including castor oil, or polyol ethers; 2) hydrophobic or hydrophilic fumed silica; 3) polyalkyl-methacrylates, styrene-ethylene-propylene block copolymers or polyhydroxycarboxylic acid derivatives; and optionally corrosion inhibitors and antioxidants.
Abstract:
A novel organophilic clay gellant comprising the reaction product of:(a) a smectite clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of natural clay without impurities;(b) a first organic cation in an amount of from about 75% to about 150% of the cation exchange capacity of the smectite clay;(c) a second organic cation provided by a polyalkoxylated quaternary ammonium salt; and(d) one or more organic anion(s) that is capable of reacting with said first and second organic cations, to form an organic cation-organic anion complex with said smectite clay.The organophilic clay gellant is used in a non-aqueous fluid system such as paints, inks, and coatings to provide improved theological properties.
Abstract:
This invention relates to a composition comprising a major amount of an oil of lubricating viscosity, and (A) an organic ammonium thiosulfate. The lubricating composition is either free of added lead containing compounds or additionally contains (B) a phosphorus or boron antiwear/extreme pressure agent, or both. The invention also includes greases and aqueous fluids containing organic ammonium thiosulfates. These compositions have improved antiwear, antiweld, extreme pressure and/or friction properties.
Abstract:
A grease composition for use as a cable filling material which contains about 75 to 95 parts by weight of a base component of a polyol or ester having a molecular weight of at least about 3000 and about 2 to 20 parts by weight of colloidal particles such as silica. Optionally, an antioxidant component can be added to impart high temperature resistance or a rubber component can be added to improve bleed resistance. Also, an article of manufacture of a cable having a sheath with one of the grease compositions of the invention located therein, and a method for filling the cable with such grease compositions.
Abstract:
Novel compositions useful as fluid gelling agents, especially for use in subterranean applications such as drilling fluids, are prepared by reacting an aqueous dispersion of a clay, such as bentonite, with an aqueous gel of a monodispersed mixed metal layered hydroxide of the formula Li.sub.m D.sub.d T(OH).sub.(m+2d+3+na) A.sub.a.sup.n, where D is a divalent metal, such as Mg, T is a trivalent metal, such as Al, and A represents other monovalent or polyvalent anions, the formula being described in detail in the disclosure.