882results about "Base-materials" patented technology

The present invention provides a soluble cold rolling oil composition in which oil particles of approximately 0.1 μm or less are dispersed in water, and which has rolling properties (particularly anti-seizure properties) equal to or better than those of water-insoluble rolling oils and emulsion-type rolling oils, while enabling the gloss of products to be made uniform and enabling an improvement in unit consumption compared to emulsion-type rolling oils; and a cold rolling method using the composition. [Solution] A cold rolling oil composition containing (A) a base oil, (B) a specific fatty acid, (C) a specific sulfur-based extreme pressure agent, (D) a specific water-soluble polymer, and (E) a specific amine, and a cold rolling method using the same.

The invention discloses a preparation method of high-temperature transformer oil, and belongs to the technical field of high-temperature transformer oil. Comprising the following steps: 1, carrying out hydrolysis reaction to obtain ricinoleic acid; step 2, carrying out first esterification reaction to obtain a ricinoleic acid esterification product; 3, performing epoxidation reaction to obtain an epoxidized ricinoleic acid esterification product; 4, carrying out ring-opening reaction to obtain ring-opened castor oil; 5, carrying out a second esterification reaction to obtain modified castor oil base oil; and 6, mixing the modified castor oil base oil, a viscosity index improver, an antioxidant, a demulsifying agent and an extreme pressure agent to obtain the high-temperature transformer oil. The invention provides modified castor oil and a preparation method thereof. The high-temperature antioxidant transformer oil prepared by using the modified castor oil as base oil has the characteristics of environmental protection, degradability, high flash point, high breakdown voltage and the like, and also has excellent oxidation stability.

To provide a lubricant composition which can excel in extreme pressure performance based on seizure resistance and wear preventive properties and low-temperature fluidity, can have a high viscosity index and can improve fuel-saving performance and gear durability.SOLUTION: There is provided a lubricant composition which comprises a lubricant base oil containing a base oil (A): a specific mineral oil-based base oil and a base oil (B): a specific wax isomerized base oil, wherein the content of the base oil (A) in the lubricant base oil is 45 mass% or more, the content of the base oil (B) in the lubricant base oil is 10 mass% or more and the kinematic viscosity of the lubricant oil base oil at 100°C is 7.00 mm2 / s or more.SELECTED DRAWING: None

A refrigerating machine oil containing alkylbenzene and a hydrocarbon oil other than alkylbenzene having a refractive index of 1.445 or less at 20 DEG C.

Electrosurgical lubricants, sterilized kits including the lubricants, methods for using the lubricants, and methods for preparing sterilized kits having the lubricants therein. Electrosurgical devices utilize a high frequency electrical current to cut and to coagulate tissue during surgery. A problem of the electrosurgical devices is that the heat thereof causes tissue, such as that of a human being, to remain on the device and is generally difficult to remove, even with repeated washings. The electrosurgical lubricants have been found to considerably reduce the amount of eschar that builds up on electrosurgical devices, decrease the tendency of electrodes to stick to tissues at the surgical site, and prevent damage to the surface of the electrosurgical device.

The invention relates to a biodegradable hydraulic oil composition and a preparation method of hydraulic oil, and relates to the technical field of hydraulic oil compositions.The hydraulic oil composition comprises, by weight, 20-37% of ester oil, 5-10% of refined vegetable oil and 5-10% of a demulsifier, and the total weight of the ester oil, the refined vegetable oil and the demulsifier is 100%. The content of the refined vegetable oil is 62-79.9 wt%, the content of the demulsifier is 0.1-1 wt%, and the preparation method of the refined vegetable oil comprises the following steps: pre-loading a nanocapsule with an antioxidant as an inner core in activated clay, loading the activated clay pre-loaded with the nanocapsule into deacidified oil, and filtering to obtain the refined vegetable oil. The hydraulic oil composition disclosed by the invention has excellent biodegradability and also has the technical effects of relatively good oxidation stability and viscosity-temperature property.

Provided herein is a lubricant composition suitable for use in electric vehicles that includes a traction coefficient additive. The lubricant composition provides utility as an electric vehicle gear oil, particularly an electric vehicle transmission fluid. The lubricant composition provides improved traction coefficient properties in use compared to a comparable lubricant composition that does not include the traction coefficient additive.

The present invention relates to light-colored corn wax oxides, to a process for their preparation, and to their use for agricultural or forestry purposes, as additives in plastic processing, in care products, in printing inks and / or in paints, and to saponified or esterified corn wax oxides prepared by saponification or esterification of the said corn wax oxides.

According to the present invention, provided is a conductive composition containing a silicone oil as a base oil and carbon nanotubes as a conductive substance, the carbon nanotubes having a diameter of 0.4-5.0 nm, and the content of the carbon nanotubes being 0.5-3.0 mass% with respect to the total mass of the composition.

Bicycle chain lubricant comprising base oil, a tackifier, and an anti-wear additive being either zinc dialkyl dithiophosphates (ZnDTP), molybdenum dithiocarbamates (MoDTC), or a mixture of both. The b

Disclosed are solvency enhancer compositions, for example, as additives to lubricating oils and as formulated in lubricating oil compositions and associated methods of preparation and use thereof. The compositions and methods can dissolve at least one of oxidation products and other organic polar compounds, due to lubricant degradation, formed and suspended in oil compositions including adding an effective amount of a solvency enhancer to the oils, wherein the solvency enhancer includes Guerbet alcohols. Further described are methods for dissolving organic deposits in an oil system including adding an effective amount of a solvency enhancer to the oil system, wherein the solvency enhancer includes Guerbet alcohols. Also provided are methods for preventing sludge and varnish formation in in-service oils including adding an effective amount of a solvency enhancer to the oils, wherein the solvency enhancer includes Guerbet alcohols.

The invention relates to a method for lubricating and cooling the powertrain of an electric vehicle, said method comprising: a) Providing at least one powertrain component at least partially coated with one or more layers of electrically insulating polymer, b) Contacting said powertrain component of step a) with an aqueous lubricating composition comprising at least one thickening polymer, c) Operating said powertrain component, said at least one partially coated powertrain component being selected from one or more components including an electric motor, a battery, or power electronics. Abstract: Figure 1.

An inside air-conditioning device includes a refrigerant circuit (50) and a refrigerant that is sealed in the refrigerant circuit (50). The refrigerant circuit (50) includes a compressor (10), a condenser (25), an electronic expansion valve (13), and an evaporator (17). The refrigerant contains at least 1,2-difluoroethylene.

The invention relates to the use of a heat-transfer fluid based on an aliphatic monoester in the manufacturing of semiconductor components.

An oil-well metal pipe including a Zn-Ni alloy plating layer that has high adhesion is provided. An oil-well metal pipe according to the present disclosure includes: a pipe main body that includes a pin which includes a pin contact surface including an external thread part and which is formed at a first end portion, and a box which includes a box contact surface including an internal thread part and which is formed at a second end portion; and a Zn-Ni alloy plating layer which is formed on at least one of the pin contact surface and the box contact surface. The X-ray diffraction intensities of the Zn-Ni alloy plating layer satisfy Formula (1). I18 / I18+I36+I54≥0.60 Here, in Formula (1), in units of cps, an X-ray diffraction intensity of {411} and {330} is substituted for I18, an X-ray diffraction intensity of {442} and {600} is substituted for I36, and an X-ray diffraction intensity of {552} is substituted for I54.

The invention relates to the use of a heat transfer fluid based on aliphatic monoesters in the manufacture of semiconductor components.

The present disclosure provides a catalyst for SRO reaction. The catalyst comprises a solid acidic substance and a metal. In this case, at least 20% of the total pore volume of the catalyst corresponds to pores of the catalyst having a pore diameter of 10 nm or more. The present disclosure also provides a method using the catalyst.

A method for operating a refrigerant circulation system that comprises a compressor, a condenser, an expansion mechanism, and an evaporator connected by piping in the stated order, wherein a refrigerant containing trifluoroiodomethane is used as a refrigerant, a refrigerator oil containing a polyol ester as a base oil is used as a refrigerator oil, the polyol ester is synthesized from a polyhydric alcohol and fatty acids, the proportion of a fatty acid having 9 carbon atoms is 65 mol% or less of the fatty acids, and the temperature of the whole refrigerant circulation system is kept at 160ºC or less.

A tubular member having a pin or box with a thread formed thereon for forming a threaded connection with another tubular member, wherein: the thread is coated with a coating, the coating comprises a polymeric matrix having particles of an elastomer dispersed therein; the elastomer has a tensile modulus at 100% of from 0.2 to 21 MPa; and the elastomer has a dynamic coefficient of friction of greater than 0.2.

A lubricant composition and a method of lubricating a conveyor system are provided. In one exemplary embodiment, a lubricant composition includes a silicone oil and a surfactant. The ratio of the silicone oil to the surfactant is from about 1 to about 48. The lubricant composition has a water content of from 0 to about 15 weight percent based on the total weight of the lubricant composition.

The present invention provides a hexafluoropropene dimer-containing composition as a novel mixture. Disclosed is a composition which contains hexafluoropropene dimers represented by C6F12, wherein: at least one of the hexafluoropropene dimers represented by C6F12 is a compound represented by formula (I); and the abundance ratio E / (E + Z) of the E-form among the E-form and the Z-form of the compound is more than 0.5.

Provided is a rolling bearing with stable sealing properties. This rolling bearing comprises inner and outer rings (2, 3), a plurality of rolling elements, and a contact-type seal member (6) that closes a bearing space between the inner and outer rings (2, 3). The seal member (6) is provided with a seal collapse suppression means (St), a grease flow suppression means (GS), and a radial change amount reduction means (Rcr). The seal collapse suppression means (St) keeps an inner peripheral side portion (13) of the seal member (6) from collapsing inward in the axial direction. The grease flow suppression means (GS) suppresses the flow of grease from the inner peripheral surface of an auxiliary lip (16) to the inner-diameter-side tip of a main lip (15), and brings the main lip (15) into a desired contact state with a seal groove (7). The radial direction change amount reduction means (Rcr) reduces the radial direction change amount of the main lip (15) to a predetermined value or less within the range of an interference fit.

Provided is a magnetic viscous fluid and a mechanical device that improve both the excitation time resistance and the rubber resistance. The magnetic viscous fluid of the present invention contains magnetic particles and a base oil, and the base oil contains an ester-based base oil and a nonpolar base oil, and the nonpolarity index of the base oil is in the range of 10 to 45.

The application provides a ZSM-48 molecular sieve and a preparation method thereof, an isomerization dewaxing catalyst and a preparation method and application thereof, wherein the preparation method of the ZSM-48 molecular sieve comprises the following steps: uniformly mixing an aluminum source, a silicon source, an alkali source, a crystallization inducer, a template agent, deionized water, a pore-forming agent and a charge balancing agent, then sequentially pre-crystallizing the obtained gel solution at 70-90 DEG C for 2-6h, crystallizing at 120-140 DEG C for 2-6h, and crystallizing at 140-170 DEG C for 10-48h, washing, drying and calcining the crystallization product, mixing the obtained molecular sieve precursor with an ammonium salt, and then washing, drying and calcining to obtain the ZSM-48 molecular sieve. The carrier particle of the isomerization dewaxing catalyst comprises the ZSM-48 molecular sieve. The acid sites of the molecular sieve are uniformly distributed, the crystal grain size is small, and the total BET specific surface area is high. The isomerization dewaxing catalyst has high reaction efficiency and isomerization conversion rate and low cracking rate.

Graphene-based sliding varnish and its use in turbomachinery manufacturing. The present invention relates to a sliding varnish formulation comprising a water-based carrier suspension, an inorganic binder, and graphene. This varnish formulation is used to protect turbomachine parts from contact wear in assemblies, particularly in the blades of the hot section of a reactor. Figure for the abstract: Fig. 3

The present invention relates to the use of a polyalkoxysiloxane-based oil of formula (I), wherein each R1 is independently a C1 to C4 alkyl group or a phenyl, each R2 is independently a C2 to C22 alkyl or alkenyl group or a phenyl, R3 is either a methyl group or a CH2 group connected to the other R3 group by a single bond, thereby forming a ring in which the 2 terminal silicon atoms are connected by a CH2-CH2 bridge, x being an integer between 0 and 50, y being an integer between 1 and 500 such that the ratio y / x is strictly greater than 0.5, or of a mixture of polyalkoxysiloxane-based oils of formula (I), as a lubricating agent.

Providing a lubricating oil composition suitable for use in electric vehicles. 【Solution】A base oil containing a Fischer-Tropsch-derived base oil, a poly-α-olefin base oil, or a mixture thereof, and a friction modifier additive in the range of 0.5 to 12% by weight, wherein the friction modifier additive has the formula (I): R 1 [(AO) n -R 2 m (I) [In the formula, R 1 is a residue of a group having at least two active hydrogen atoms, m is at least 2, AO is an alkylene oxide residue, each n is independently 0 to 100, each R 2 is independently H or R 3 , and each R 3 is independently a residue of a polyhydroxyalkyl or polyhydroxyalkenyl carboxylic acid, a residue of a hydroxyalkyl or hydroxyalkenyl carboxylic acid and / or a residue of an oligomer of a hydroxyalkyl or hydroxyalkenyl carboxylic acid], and the kinematic viscosity at 100 ° C is in the range of 2.0 to 5.5 cSt.​

The present invention relates to a middle-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt% of ethylene; and at least 20 wt% of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate,where a monomer mix comprising the ethylene and the acrylate is polymerized at a pressure of 50 to 400 bar and in the presence of at least 2 wt% of a chain transfer agent. The invention further relates to a liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.