2624results about "Base-materials" patented technology

This disclosure relates to the use of di(alkyl substituted phenyl)amine antioxidants as additives in lubricant compositions having good oxidation properties in engine crankcase applications, especially in compression ignited engine and or spark ignited engine applications, where the antioxidant comprises from 0 to 10 mass% mono-C9-alkyl substituted diphenyl amine, and 90 to 100 mass% di-C9-alkyl substituted phenyl amines based upon the weight of the mono- and di-C9-alkyl substituted phenyl amines, preferably where tri-C9-alkyl substituted phenyl amines are minimized and ortho substituted di-C9-alkyl substituted phenyl amines are minimized.

To provide a novel lubricant agent additive and a novel lubricant agent composition that can reduce friction of a sliding part.SOLUTION: A lubricant agent additive comprises a polymer containing an olefin compound as a monomer unit or a modified polymer obtained by modifying a hydrogenated polymer with maleic acid or maleic anhydride. A lubricant agent composition comprises: a base oil; and a polymer containing an olefin compound as a monomer unit or a modified polymer obtained by modifying a hydrogenated polymer with maleic acid or maleic anhydride.SELECTED DRAWING: None

The invention relates to the field of oil storage microcapsules, and discloses a porous covalent organic framework oil storage microcapsule as well as a preparation method and application thereof. Under the catalysis of p-toluenesulfonic acid, 4, 4 ', 4' '-(1, 3, 5,-triazine-2, 4, 6-triyl) triphenylamine and trialdehyde phloroglucinol monomers are promoted to be subjected to condensation reaction in the repeated oscillation process, a product is purified to prepare a 4, 4', 4 ''-(1, 3, 5,-triazine-2, 4, 6-triyl) triphenylamine covalent organic framework, and by means of a periodic pore structure of the covalent organic framework, the covalent organic framework can be used for preparing the covalent organic framework. And the lubricating oil is adsorbed and stored and can be controllably separated out to provide lubrication during working, so that a high-performance self-lubricating effect can be realized. In addition, covalent organic frameworks are used as hard particles to be doped into a polymer matrix to modify the polymer matrix, so that the wear resistance of the polymer matrix can be greatly enhanced, and the performance of the self-lubricating bearing material is improved.

A lubricating oil composition is described. The composition includes a major amount of a base oil of lubricating viscosity and a polyphosphate-based dispersion. The dispersion includes an ammonium polyphosphate and a dispersing agent.

A high-temperature and high-salt resistant hyperbranched lubricant for a water-based drilling fluid, and preparation and application thereof are provided, belonging to the technical field of oilfield chemistry. The preparation method includes the steps of: mixing tetraethyl orthosilicate (TEOS), diethanolamine (DEA), and triethanolamine (TEA) for a transesterification and polycondensation reaction to obtain highly reactive hyperbranched polysiloxane; adding an acrylamide (AM) monomer, an anionic monomer, and a polar ester monomer into deionized water to obtain a monomer solution; adjusting the pH of the monomer solution to 5-9, and then adding highly reactive hyperbranched polysiloxane; introducing nitrogen to remove oxygen, adding an initiator, and thermally initiating a polymerization reaction; and after the reaction is completed, vacuum-drying and crushing an obtained product to obtain the high-temperature and high-salt resistant hyperbranched lubricant for a water-based drilling fluid.

A lubricating grease for electric vehicle applications includes thickener 6% by weight (wt. %) to 12 wt. %, lubricating oil 57 wt. % to 92.98 wt. %, and surface-active ester 1 wt. % to 10 wt. %. The lubricating grease also includes additives including friction reducer and modifier 0.1 wt. % to 5 wt. %, anti-wear agent 0.1 wt. % to 5 wt. %, and a balance of extreme pressure agent, oxidation inhibitor, and corrosion inhibitor.

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 is directed to environmentally stable solid lubricant coatings with bilayer transition-metal dichalcogenide structures that are designed to resist the effects of oxidation during long term storage, or during short exposures under conditions that would oxidize similar films that do not have these bilayer structures. In addition to improving oxidation resistance, these bilayer structures also facilitate the more rapid establishment of a low, steady-state friction coefficient than is possible with similar films that do not have these bilayer structures.

A method for mitigating preignition events in a hydrogen internal combustion engine. The method includes providing a dosing system in fluid communication with a dosing cylinder of a cylinder block of the hydrogen internal combustion engine; introducing a lubricant including a base oil, a polymer, or mixtures thereof to an intake area of the dosing cylinder via the dosing system; and initiating operating conditions for the hydrogen internal combustion engine.

A ride vehicle that is configured to support a rider down a non-wet lubricated recreational slide is provided. The ride vehicle includes an elongate body with a flexible central core positioned between a top surface of the ride vehicle and at least one layer that includes one or more projections. The top surface may include at least on handle for gripping by a rider. The at least one layer forms a bottom surface of the ride vehicle that is configured to contact the non-wet lubricated recreational slide. A coefficient of friction between the at least one layer of the ride vehicle and the non-wet lubricated slide surface is within a range of between about 0.03 to about 0.2.

A fixing device includes: a first rotatable member; a second rotatable member disposed in contact with first rotatable member; a pressing member that is disposed along an inner circumferential surface of second rotatable member and presses the inner circumferential surface of the second rotatable member such that the second rotatable member is pressed against the first rotatable member; a sliding member interposed between an inner circumferential surface of second rotatable member and the pressing member; and a lubricant interposed between the inner circumferential surface of the second rotatable member and the sliding member. The inner circumferential surface of the second rotatable member contains a resin having a siloxane group and a conducting material treated with siloxane. A sliding surface of sliding member contains a resin having a siloxane group and a conducting material treated with siloxane. The lubricant contains an oil having a siloxane group in a main chain.

A composition including a pyrolysis oil and, as an additive, one or more of: (a) an antioxidant; and (b) a stabilising additive selected from (i) alkoxylated amine compounds; (ii) aldehyde-alkylphenol copolymers; (iii) a quaternary ammonium salt, and mixtures thereof. A method and use for improving the stability of a composition including a pyrolysis oil by addition to the composition one or more of said additives is also provided.

A two-phase structured lubricant includes a liquid component about 5% by weight (wt. %) to 95 wt. %, and a structural component about 5 wt. % to 95 wt. %. The structural component recrystallizes or solidifies around the liquid component.

A method of lubricating a fluid production pump may include mixing a polarized lubricant with water to produce a diluted lubricant. The method may additionally include creating a flowpath within the fluid production pump. An initial volume of the diluted lubricant may be circulated within the flowpath to allow the diluted lubricant to react with components of the fluid production pump and form a protective barrier on the components of the fluid production pump. The method may further comprise repeatedly introducing a periodic volume of diluted lubricant into the fluid production pump according to a predefined lubrication schedule.

This invention relates to a method of reducing abnormal combustion events in a hydrogen fueled internal combustion engine (HICE) during operation of the engine. The method includes the steps of: a) providing to the HICE a lubricating oil composition including or resulting from the admixing of: i) a base oil having a KV100 of less than or equal to 12 cSt and included at greater than 50 wt. % of the composition and comprising a Group I base oil, a Group II base oil, a Group III base oil, a Group IV base oil, or combinations thereof; ii) at least one overbased metal containing detergent with a Total Base Number (KOH / g) greater than or equal to 9 and less than or equal to 500 and included at a treat level to deliver between 100 to 5000 ppm by weight of total metal and between 0.15 wt. % to 8.0 wt. % of total soap to the composition; iii) at least one molybdenum containing compound included at a treat level to deliver between 20 to 2000 ppm by weight of total molybdenum to the composition; and iv) the lubricating oil composition having a total sulfated ash of less than or equal to 2.0 wt. %, a total phosphorous level of less than or equal to 0.120 wt. %, and a SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50 or 60; b) providing a fuel comprising hydrogen to the HICE; and c) combusting the fuel in the HICE. Also provided are a lubricating oil composition and a concentrate for use in a HICE to reduce the propensity for abnormal combustion events.

A two-phase structured lubricant includes from about 5 wt% to 95 wt% of a liquid component, and from about 5 wt% to 95 wt% of a structured component. The structured component recrystallizes or solidifies around the liquid component.

The invention discloses environment-friendly metal cutting oil with high bearing capacity and high wear resistance, and belongs to the technical field of metal cutting fluid. The cutting fluid is composed of diisooctyl sebacate, a phosphate amine salt extreme pressure additive, a borate additive and a sulfurized extreme pressure additive, the sulfurized extreme pressure additive is sulfurized fatty acid ester and dialkyl pentasulfide (Rc2540), and the addition amount of the phosphate amine salt extreme pressure additive is 0.12-0.80% of the weight of base oil; the addition amount of the borate additive is 0.05-1.45% of the weight of the base oil, the addition amount of the sulfurized fatty acid ester is 0.10-0.85% of the weight of the base oil, and the addition amount of the dialkyl pentasulfide (Rc2540) is 0.20-0.85% of the weight of the base oil. The bearing capacity (Pb) of the cutting oil can reach more than 920N, and the diameter (Db) of a low-load long grinding scar can be less than 0.35 mm.

What is provided is a fluorine-containing ether compound represented by the following formula.R1—CH2—R2—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4 (In the formula, R2 and R3 are perfluoropolyether chains, and R1 and R4 are terminal groups having two or three polar groups, in which individual polar groups are bound to different carbon atoms and the carbon atoms to which the polar groups are bound are bound to each other via a linking group having a carbon atom to which the polar groups are not bound).

Provided is a continuous process for converting waste plastics to recycle for polyethylene polymerization. The process includes the steps of selecting a waste plastic comprising polyethylene and / or polypropylene, and preparing a blend of petroleum and the selected plastic. The amount of plastic in the blend comprises less than 20 wt% of the blend. The blend is passed to a refinery / hydrocracking unit. Liquefied petroleum gas C 3 -C 4 The olefin / paraffin mixture, and optionally naphtha, is recovered from the hydrocracking unit and passed to a steam cracker for ethylene production. A heavy fraction is also recovered from the hydrocracking unit and may be passed to an isomerization dewaxing unit to prepare base oil.

Provided is a continuous process for converting waste plastics to recycle for polypropylene polymerization. The process includes the steps of selecting waste plastics comprising polyethylene and / or polypropylene, and preparing a stable blend of petroleum and the selected plastics. The amount of plastics in the blend constitutes less than 20 wt% of the blend. The blend is passed to a refinery-hydrocracking unit. A liquefied petroleum gas C3 olefin / paraffin mixture is recovered from the hydrocracking unit. The C3 paraffins and C3 olefins are separated into different fractions, the C3 olefin fraction is passed to a propylene polymerization reactor, and the C3 paraffin fraction is optionally passed to a dehydrogenation unit to produce additional propylene. A heavy fraction is also recovered from the hydrocracking unit and can be passed to an isomerization dewaxing unit to prepare base oil.

A method of lubricating a fluid production pump may include mixing a polarized lubricant with water to produce a diluted lubricant. The method may additionally include creating a flowpath within the fluid production pump. An initial volume of the diluted lubricant may be circulated within the flowpath to allow the diluted lubricant to react with components of the fluid production pump and form a protective barrier on the components of the fluid production pump. The method may further comprise repeatedly introducing a periodic volume of diluted lubricant into the fluid production pump according to a predefined lubrication schedule.

The invention relates to the technical field of wind power gear oil, in particular to synthetic ester wind power gear oil base oil and a preparation method thereof, and the synthetic ester wind power gear oil base oil is prepared according to the following steps: mixing neopentyl polyol, dicarboxylic acid, monobasic fatty alcohol and monobasic carboxylic acid according to a specific proportion and sequence, adopting inert gas as a water-carrying agent and shielding gas, and reacting at the temperature of 60-80 DEG C for 1-2 hours to obtain the synthetic ester wind power gear oil base oil. And carrying out esterification reaction under the action of a tin-based esterification catalyst, and carrying out liquid-solid separation on the esterification product and the catalyst while the esterification product is hot. The synthetic ester wind power gear oil base oil disclosed by the invention has excellent viscosity-temperature performance, low-temperature performance and biodegradability, belongs to environment-friendly lubricating oil base oil, and can meet the lubrication protection requirements under harsh working conditions; the problems that existing special gear oil for wind power generation is insufficient in comprehensive performance, short in service life, prone to causing environmental pollution and the like can be effectively solved.

The invention provides lubricant base oil and a preparation method thereof, and the preparation method comprises the following steps: carrying out a hydroisomerization reaction on Fischer-Tropsch wax with a distillation range of 400-550 DEG C under the action of a hydroisomerization catalyst, and then carrying out a hydrofining reaction and rectification under the action of a hydrofining catalyst to obtain the lubricant base oil, the preparation method of the hydroisomerization catalyst comprises the following steps: synthesizing a ZSM-48 seed crystal, preparing a ZSM-48 molecular sieve, forming a carrier, loading noble metal ions, roasting and the like. The hydroisomerization catalyst shows high isomerization selectivity for Fischer-Tropsch wax with a distillation range of 400-550 DEG C, and lubricating oil base oil with high viscosity index, low pour point and low cloud point can be prepared from the catalyst under the action of the hydroisomerization catalyst. The method for preparing the lubricant base oil not only has the advantages of high yield and simple preparation process flow, but also can produce high-quality 4cSt base oil and 6cSt base oil at the same time.

Provided herein are processes for recycling hydrocarbons in a used high performance lubricant such as wind turbine gear oil. In the present process and methodologies, the used high performance lubricant is not mixed with another type of used oil. The used high performance oil is contacted with a solvent in an extraction process. Contaminates are extracted and circular hydrocarbons are formed. Solvent can be recovered, and the circular hydrocarbon combined with a high performance base stock for use as a high performance lubricant in a mechanical system.

Embodiments herein relate to lubricating coatings comprising polyacrylic acid for medical devices. In an embodiment, a medical device includes a lubricious coating having a substrate and a first layer disposed on the substrate. The first layer may include a photoreactive polyvinylpyrrolidone, a non-photoreactive polyvinylpyrrolidone, and a crosslinking compound. The second layer may be disposed on the first layer, the second layer may include poly (acrylic acid) and a non-photoreactive polyvinylpyrrolidone. The non-photoreactive polyvinylpyrrolidone of the second layer forms a composite with the poly (acrylic acid) of the second layer. The non-photoreactive polyvinylpyrrolidone of the second layer has a concentration that is present in a gradient in the thickness direction of the second layer, wherein the concentration at the outer surface of the second layer is lower than the concentration at the inner surface of the second layer. Other embodiments are also included herein.

An environmentally friendly metal cutting oil with high load-bearing and high wear resistance, belonging to the technical field of metal cutting fluids. The cutting fluid is composed of diisooctyl sebacate, phosphate amine salt extreme pressure additives, borate series additives and sulfurized extreme pressure additives, the sulfurized extreme pressure additives are sulfurized fatty acid esters and dialkyl pentasulfide (Rc2540). The load-bearing capacity (Pb) of the cutting oil can reach more than 920N, and the low-load long-wear wear spot diameter (Db) can be less than 0.35 mm.

The invention relates to the technical field of base oil molecular structure modification, in particular to a gasoline engine oil composition and a base oil molecular modification method thereof, the composition contains 70-85 parts of modified base oil, 5-10 parts of boric acid ester dispersing agent and other additives; when the modified base oil is prepared, the base oil firstly reacts with 3-mercaptopropyltrimethoxysilane, then glycidyl methacrylate and N-vinyl pyrrolidone are sequentially added, a multi-step temperature control reaction is carried out, siloxane groups, epoxy groups and pyrrolidone groups are grafted on molecular chains, and the modified base oil is obtained and used for preparing high-performance gasoline engine oil. Through base oil molecule modification and special additive compounding, the viscosity-temperature performance, the wear resistance and the oxidation stability of the gasoline engine oil are improved, and sediment generation is reduced; the process reduces energy consumption and cost, meets environmental protection requirements, and realizes unification of high performance and economical efficiency.

The present disclosure provides a drag reducing agent. In an embodiment, the drag reducing agent includes a polymer and a liquid carrier. The polymer is composed of one or more C6-C14 α-olefin monomers. The polymer includes a residual amount of zirconium. The polymer has an absolute weight average molecular weight (Mw(Abs)) greater than 1,300,000 g / mol and a (Mw(Abs) / Mn(Abs) from 1.3 to 3.0.

The invention relates to MCT oil / alcohol compositions without visible clouding or phase separation between the MCT and alcohol components at room temperature. The invention encompasses MCT oil / alcohol compositions containing MCT oil, alcohol, and water. The MCT oil / alcohol compositions can be used for mixing oil-soluble, alcohol-soluble, and water-soluble compounds, and for lubricating, disinfecting, sterilizing, cleaning, and coating surfaces.

Provided is a continuous process for converting waste plastics to recycle for polyethylene polymerization. The process includes the steps of selecting waste plastics comprising polyethylene and / or polypropylene, and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend constitutes less than 20 wt% of the blend. The blend is passed to a refinery-crude unit. A liquefied petroleum gas C3-C4 olefin / paraffin mixture, and optionally a naphtha stream, are recovered from the crude unit and passed to a steam cracker for ethylene production. The product stream from the crude unit can also be passed to a hydrocracking unit, and the recovered heavy fraction can then be passed to an isomerization dewaxing unit to prepare base oil.