KR101753379B1 - Engine oil treatment composition - Google Patents
Engine oil treatment composition Download PDFInfo
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- KR101753379B1 KR101753379B1 KR1020160024312A KR20160024312A KR101753379B1 KR 101753379 B1 KR101753379 B1 KR 101753379B1 KR 1020160024312 A KR1020160024312 A KR 1020160024312A KR 20160024312 A KR20160024312 A KR 20160024312A KR 101753379 B1 KR101753379 B1 KR 101753379B1
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M131/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen
- C10M131/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen containing carbon, hydrogen and halogen only
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M131/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen
- C10M131/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen containing carbon, hydrogen, halogen and oxygen
- C10M131/10—Alcohols; Ethers; Aldehydes; Ketones
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/08—Ammonium or amine salts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
- C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
- C10M145/14—Acrylate; Methacrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
- C10M145/38—Polyoxyalkylenes esterified
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to a method for preventing accumulation of oxidizing waste such as carbon which is generated due to combustion in an internal combustion engine such as an automobile engine and improving the cleaning performance against pollutants, thereby maximizing engine efficiency and improving durability, Engine oil treatment composition.
Description
The present invention relates to engine oil treatment compositions. More specifically, it relates to a method for preventing accumulation of oxidizing waste such as carbon generated due to combustion in an internal combustion engine such as an automobile engine and improving the cleaning performance against pollutants, thereby maximizing the engine efficiency and improving durability, Gt; oil < / RTI > treatment composition.
The internal combustion engine such as an automobile has a longer life due to the improvement of the technology, the internal friction resistance of the engine is increased due to the accumulation of contaminated sediments such as carbon, and the engine efficiency is lowered or the airtightness and compressibility in the combustion chamber are lowered, Causing combustion, causing harmful substances due to incomplete combustion to be discharged to the outside, and causing environmental pollution.
Accordingly, various methods have been proposed, such as a method of preventing or eliminating the accumulation of contaminated sediments such as sludge and oxidized waste accumulated in an internal combustion engine.
For example, there may be mentioned a method in which the engine cleaner composition is mixed with the fuel so as to simultaneously perform combustion and cleaning at the time of combustion, and a method of incorporating various additive components into the engine oil. However, these components have disadvantages in that they do not solve the primary problem of causing pollutants caused by long-term engine operation or that cleaning is not efficiently performed.
Therefore, there is a need for research and development such as cleaning performance against contaminants generated while minimizing contaminated sediments inside the engine.
The present invention can reduce the generation of various pollutants as the engine, which is an internal combustion engine such as an automobile, is used for a long period of time, minimizes accumulation of oxidizing waste such as carbon generated by combustion, And an object of the present invention is to provide an engine oil treatment composition capable of improving the cleaning performance against contaminants such as suspended solids.
It is another object of the present invention to provide an environmentally friendly engine oil treatment composition that maximizes engine efficiency and improves durability and does not release harmful substances to the environment.
(B) a polyoxyethylene aliphatic alcohol ester; (c) an ammonium chelate; (d) a polyoxyethylene aliphatic alcohol ester; An organic acid, and (e) a mixed solvent of a halogenated hydrocarbon solvent and an ether solvent.
At this time, the engine oil treatment composition may contain 40 to 150 parts by weight of an auxiliary agent per 100 parts by weight of base oil for an internal combustion engine.
In an engine oil treatment composition according to an embodiment of the present invention, the adjuvant comprises (a) from 1 to 15% by weight of a (meth) acrylate based polymer, (b) from 15 to 35% by weight of a polyoxyethylene aliphatic alcohol ester, (c) 10 to 35% by weight of ammonium chelate, (d) 1 to 10% by weight of organic acid, and (e) 5 to 40% by weight of mixed solvent.
In the engine oil treatment composition according to an embodiment of the present invention, (e) the mixed solvent may be a mixture of a halogenated hydrocarbon solvent and an ether solvent in a mixing ratio of 3: 1 to 5: 1.
In the engine oil treatment composition according to an embodiment of the present invention, the halogenated hydrocarbon solvent may be 1,2,4-trichlorobenzene, 1,1,1-trichloroethane, 1,1,2-trichloroethane And trichlorethylene can be used.
In the engine oil treatment composition according to an embodiment of the present invention, the ether solvent is at least one selected from the group consisting of ethylene glycol monomethyl ether (2-methoxy ethanol), ethylene glycol monoethyl ether (2-ethoxy ethanol), ethylene glycol monopropyl (2-propoxyethanol), ethylene glycol monoisopropyl ether (2-isopropoxy ethanol), ethylene glycol monobutyl ether (2-butoxy ethanol), ethylene glycol monophenyl ether Ethylene glycol monobenzyl ether (2-benzyloxyethanol), diethylene glycol monomethyl ether (2- (2-methoxyethoxy) ethanol), diethylene glycol monoethyl ether (2- (2-ethoxy- ) Ethanol, diethylene glycol mono-n-butyl ether (2- (2-butoxyethoxy) ethanol), ethylene glycol dimethyl ether (dimethoxyethane), ethylene glycol diethyl ether (diethoxyethane) Butyl ether When any one or more may be selected from ethanol).
The engine oil treatment composition according to one embodiment of the present invention may further comprise (f) a buffer selected from sodium acetate and sodium bicarbonate.
(A) a (meth) acrylate-based polymer is a homopolymer, a copolymer and a terpolymer of a (meth) acrylate monomer, ). ≪ / RTI >
In an engine oil treatment composition according to an embodiment of the present invention, (d) the organic acid is selected from the group consisting of acetic acid, propionic acid, thioglycolic acid, citric acid, butyric acid, palmitic acid, sulfaphosphoric acid, glycolic acid, oxalic acid and tartaric acid It may be more than one.
An engine oil treatment composition according to an embodiment of the present invention may have a pH range of 7 to 8.5.
The engine oil treatment composition according to an embodiment of the present invention may further include any one selected from an antioxidant, a clean dispersant, an extreme pressure agent, a pigment, a dye, a corrosion inhibitor, and an antifoaming agent.
In the engine oil treatment composition according to one embodiment of the present invention, the antioxidant may be triphenyl phosphite.
In an engine oil treatment composition according to an embodiment of the present invention, the clean dispersant may be a benzylamine.
In an engine oil treatment composition according to an embodiment of the present invention, the extreme pressure agent may be an amine phosphate ester.
INDUSTRIAL APPLICABILITY The engine oil treatment composition according to the present invention can minimize the amount of contaminants that can be generated in the engine according to long-term engine operation and can prevent the accumulation of various impurities such as carbon, sludge, .
Further, the present invention greatly improves the cleaning performance against contaminants such as carbon and metal suspended matters, maximizes the engine efficiency, extends the life of the engine, and is environment-friendly because there is no fear of emission of harmful substances.
Hereinafter, the engine oil treatment composition of the present invention will be described in detail.
The present invention may be better understood by the following examples, which are for the purpose of illustration only and are not intended to limit the scope of protection defined by the appended claims. The technical terms and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined.
The inventors of the present invention have found that the process of high temperature inside the engine, high-speed friction, combustion, etc. through a combination of specific components, namely (meth) acrylate polymer, polyoxyethylene aliphatic alcohol ester, ammonium chelate, organic acid and mixed solvent It is possible to maximize the engine efficiency and increase the life span of the engine by improving the cleaning performance against contaminants such as carbon and metal suspended matters while minimizing the generation of contaminants that may occur in the engine .
Hereinafter, the present invention will be described in more detail.
(B) a polyoxyethylene aliphatic alcohol ester, (c) an ammonium chelate, (d) a (meth) acrylate based polymer, ) Organic acid, and (e) a mixed solvent of a halogenated hydrocarbon-based solvent and an ether-based solvent.
At this time, the auxiliary agent may be included in an amount of 40 to 150 parts by weight based on 100 parts by weight of the base oil. When the content range of the auxiliary agent to the base oil satisfies the above range, the generation of the desired contaminants can be reduced and the cleaning performance can be maximized. More preferably, the content range of the auxiliary agent is 40 to 65 parts by weight based on 100 parts by weight of the base oil, which is more preferable because it can realize a synergistic effect of the generation of contaminants and the cleaning performance.
In the present invention, the adjuvant is preferably selected from the group consisting of (a) a (meth) acrylate polymer, (b) a polyoxyethylene aliphatic alcohol ester, (c) an ammonium chelate, (d) an organic acid, (e) a halogenated hydrocarbon solvent, Solvent mixture. (B) 15 to 35% by weight of a polyoxyethylene aliphatic alcohol ester, (c) 10 to 35% by weight of an ammonium chelate, and (c) (d) 1 to 10% by weight of the organic acid and (e) 5 to 40% by weight of the mixed solvent are more preferable to the generation and cleaning performance of the internal pollutants in connection with the content range of the auxiliary agent in the base oil.
The engine oil treatment composition of the present invention comprises a base oil for an internal combustion engine. The base oil is divided into Group I to Group V according to the criteria of mineral base oil designated by the American Petroleum Institute (API), and the base oil according to the present invention refers to it. Specifically, Groups I, II and III are mineral oil based oils, which are classified according to the degree of saturation, viscosity index and sulfur content, and Group IV is polyalphaolefin (PAO) as a synthetic base oil. Group V refers to base oils not included in Groups I to IV. In the present invention, the base oil can be used without limitation as long as it serves to maintain the smooth operation of the machinery, preferably 15W / 40.
In the present invention, (a) the (meth) acrylate-based polymer may be at least one selected from homopolymers, copolymers and terpolymers of (meth) acrylate monomers. This improves the oil viscosity characteristics in combination with other components, and is particularly favorable at high temperatures. In addition, it is possible to maximize the lubrication performance by minimizing the viscosity change rate with time, and to reduce the abrasion phenomenon, thereby preventing the generation of contaminants.
The (meth) acrylate-based polymer has a weight average molecular weight of 1,000 to 100,000 g / mol, preferably 2,000 to 20,000 g / mol in terms of not only viscosity at high temperature but also storage stability.
The (meth) acrylate polymer is preferably used in an amount of 1 to 15% by weight, preferably 5 to 10% by weight, based on the total weight of the adjuvant. When the above range is satisfied, the viscosity is better for improving the aging characteristics.
In the present invention, the polyoxyethylene aliphatic alcohol ester (b) improves the emulsifying effect and improves the cleaning performance through combination with other components, and at the same time prevents precipitation or deposition on the generated contaminants. Examples of such polyoxyethylene aliphatic alcohol esters include polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether (Polyoxyethylene oleyl ether), polyoxyethylene cetearyl ether, and the like. Of these, polyoxyethylene lauryl ether is preferably used. In this case, the polyoxyethylene aliphatic alcohol ester is preferably 15 to 35% by weight, more preferably 15 to 30% by weight, based on the total weight of the adjuvant, to the effect of preventing contamination and deposition.
In the present invention, (c) the ammonium chelate prevents the generation of oxidized waste in an extreme environment inside the engine at a high temperature, while simultaneously enhancing the cleaning efficiency in combination with other components. The ammonium chelate is an aminopolycarboxylic acid or an ammonium salt thereof, and it is preferable to use ethylenediaminetetraacetic acid (EDTA), dihydroxyethylethylenediamine tetraacetic acid (DHEDTA), 1,3-propanediamine tetraacetic acid (1,3-PDTA) , Diethylenetriamine pentaacetic acid (DTPA), and triethylenetetraamine hexaacetic acid (TTNA). Of these, ethylenediaminetetraacetic acid (EDTA) is more preferably used. At this time, the ammonium chelate is 10 to 35% by weight, preferably 15 to 35% by weight based on the total weight of the adjuvant, and is more preferable because it can realize a cleaning synergistic effect in combination with other components.
In the present invention, the organic acid (d) penetrates into the generated contaminants to prevent the formation of the film due to the contaminants, the precipitation or deposition of the contaminants, and in particular, the combination with the ammonium chelate can maximize the cleaning efficiency, Thereby making it possible to increase the cleaning performance while lowering the content of the auxiliary agent. In addition, the combination of the ammonium chelate and the organic acid makes it possible to prevent the corrosion of the inner wall by removing oxygen which may be generated in the engine. The organic acid may be at least one selected from the group consisting of propionic acid, thioglycolic acid, citric acid, butyric acid, palmitic acid, sulfaphosphoric acid, glycolic acid, oxalic acid, tartaric acid and acetic acid, It is better to use citric acid or acetic acid. The organic acid may be contained in an amount of 1 to 10% by weight, preferably 1 to 5% by weight, based on the total weight of the adjuvant. If the content is less than 1% by weight, the effect of addition of organic acid is insignificant. If the content is more than 10% by weight, viscosity characteristics are remarkably decreased and it is difficult to expect a cleaning performance effect.
In the present invention, (e) the mixed solvent is composed of a halogenated hydrocarbon solvent and an ether solvent. In combination with other components, the washing stability of the auxiliary agent is improved and the surface tension is lowered, thereby improving the washing penetration ability. This makes it possible to significantly reduce the generation of contaminants such as carbon as compared with the use of a single solvent and minimize accumulation of various impurities, thereby improving cleaning performance and durability, thereby increasing the life of the engine in the long term have. At this time, it is more preferable that the mixed solvent includes 5 to 40 wt%, preferably 30 to 40 wt% of the total weight of the auxiliary agent.
The mixed solvent is preferably composed of a halogenated hydrocarbon solvent and an ether solvent. More preferably, the mixed ratio of the halogenated hydrocarbon solvent and the ether solvent is 3: 1 to 5: 1.
The halogenated hydrocarbon solvent may be at least one selected from the group consisting of 1,2,4-trichlorobenzene, 1,1,1-trichloroethane, 1,1,2-trichloroethane and trichlorethylene, Based solvents such as ethylene glycol monomethyl ether (2-methoxyethanol), ethylene glycol monoethyl ether (2-ethoxy ethanol), ethylene glycol monopropyl ether (2-propoxy ethanol), ethylene glycol monoisopropyl ether Ethylene glycol monobutyl ether (2-butoxyethanol), ethylene glycol monobutyl ether (2-butoxyethanol), ethylene glycol monophenyl ether (2-phenoxyethanol), ethylene glycol monobenzyl ether Methyl ether (2- (2-methoxyethoxy) ethanol), diethylene glycol monoethyl ether (2- (2-ethoxy-ethoxy) ethanol, diethylene glycol mono-n- -Butoxyethoxy) ethanol), ethylene glycol dimethyl ether (Dimethoxyethane), ethylene glycol diethyl ether (diethoxyethane), and ethylene glycol dibutyl ether (dibutoxyethane).
The engine oil treatment composition according to the present invention is preferably in a pH range of 7 to 8.5, more preferably 7 to 8, in order to realize the desired effect. When the above-mentioned range is satisfied, there is an advantage that the long-term cleaning performance is not deteriorated and the replacement life of the oil composition can be increased.
In addition, the engine oil treatment composition according to the present invention may further comprise (f) a buffer selected from sodium acetate and sodium bicarbonate as an adjuvant in the present invention. This may further be included for the purpose of balancing the physical properties of the dispersibility according to the polyoxyethylene aliphatic alcohol ester and the viscosity characteristics according to the (meth) acrylate-based polymer. By controlling the pH of the entire composition, It is possible to prevent degradation due to the component and to maintain long-term long-term performance. At this time, the buffer may be included in the total amount of the auxiliary agent in the range of 1 to 10% by weight.
The engine oil treatment composition according to the present invention may further include any one or two or more additives selected from an antioxidant, a clean dispersant, an extreme pressure agent, a pigment, a dye, a corrosion inhibitor and an antifoaming agent.
Preferably, the composition contains at least one selected from an antioxidant, a clean dispersant and an extreme pressure agent in terms of the effect of the composition.
At this time, the antioxidants can maintain the performance for a long time by delaying the oxidation rate of the composition, and triphenylphosphite (lecithine) can be preferably used. This can achieve a further improved effect in combination with other ingredients, and can be included in 5 to 10% by weight of the total composition.
The above-mentioned clean dispersant disperses the insoluble matter contained in the composition due to the surfactant action, thereby preventing aggregation of contaminants in the engine and neutralizing acidic substances. At this time, the clean dispersant may preferably be benzylamine, and the content of the clean dispersant is preferably 5 to 15% by weight based on the total composition.
The extreme press additives can form a coating film due to heat generated due to contact between metals and prevent abrasion due to friction. Preferably, amine phosphate ester can be used. Also, it is preferable to use it in combination with the above-mentioned clean dispersant. In this case, when the content is 5 to 15 wt% of the total composition, the ultimate abrasion prevention efficiency of the metal surface is excellent.
In addition, the engine oil treatment composition according to the present invention may further contain pigments, fragrances and the like, if necessary. These materials may be added to materials conventionally used in the art within the range not impairing the physical properties of the additive composition, and the addition amount is not limited.
The present invention differs in effectiveness depending on the order of introduction of the components constituting the composition and the injection temperature. That is, depending on the temperature and order, miscibility between the components may be deteriorated or layer separation may occur, and the synergistic effect of dispersibility and cleaning property may not be expected and storage stability may be deteriorated. Therefore, the order of introduction into each component in the composition according to the present invention is preferably as follows.
The method for producing an engine oil treatment composition according to the present invention comprises the steps of: (i) adding a base oil for an internal combustion engine to a reactor and then adding and stirring a (meth) acrylate-based polymer and a polyoxyethylene aliphatic alcohol ester; (Ii) adding and mixing a mixed solvent of an organic solvent and an ether solvent, and (iii) adding and mixing an ammonium chelate and an organic acid. At this time, it is preferable that the step (i) and the step (ii) are carried out preferably at 60 to 80 ° C, and the step (iii) is carried out by lowering the temperature of the reactor to 30 to 50 ° C.
In addition, other additives which may additionally be included may be added after step (iii) or step (iii).
Hereinafter, preferred embodiments of the engine oil treatment composition according to the present invention will be described. The physical properties of the composition samples prepared through the following examples and comparative examples were measured as follows.
(evaluation)
(1) Pour point
The pour point test was carried out in accordance with the provisions of KS M 2016.
(2) Oxidation stability
The oxidation stability test was carried out in accordance with the provisions of KS M 2008. When no adhesion was observed, the result was indicated by & cir &
(3) Carbon black removal performance
After immersing a metal plate (aluminum plate, 100 mm × 100 mm × 5 mm) at 50 ° C. for 1 hour in a carbon black solution, it is confirmed that about 10 g is applied to a metal plate, and then a contaminated test specimen cooled at room temperature is prepared. The contaminated test specimens were immersed in a composition according to Examples and Comparative Examples, and then allowed to stand in an oven at 80 ° C for 12 hours (shaken at intervals of 1 hour). Then, the contaminated test specimens were taken out, washed with distilled water and dried. And the cleaning performance was shown. When the change in weight before and after cleaning is 90% or more, it is excellent. If 80% or more is less than 90%, it is good. If it is less than 70%
(4) Internal cleanability of the engine
An engine oil treatment composition according to Examples and Comparative Examples was added to a test vehicle (displacement of 2000 cc, mileage of 14,523 km), and the pollution degree and cleanability of the engine before and after the addition were evaluated. Before and after the addition of the engine oil treatment composition, the vehicle traveled 10,000 km at an operating condition of the vehicle (one hour running at a speed of 50 to 60 km (two to three gears) and four times thereafter). The inside cleanability of the engine was wiped 20 times inside the engine using a 100 mm x 100 mm cotton fabric (Japan Oil Chemical Society, # 60). Thereafter, the contaminated fabric was tested by Testing Co, Ltd. U.S.A. And washing was carried out at 120 rpm and 25 DEG C for 10 minutes by setting the mixing ratio to 30 times. At this time, 900 ml of wash solution with 0.083% detergent concentration was used and rinsed with 900 ml of 3 DH water for 3 minutes. Next, the degree of reflectance of the fabric before the experiment and the reflectance of the fabric after the experiment were measured, and three degrees were calculated according to the following Equation 1. The K / S of the contaminated fabric after the calculation was able to determine the degree of contamination inside the engine The greater the degree of contamination, the lower the degree of contamination.
[Formula 1]
(%) = (K / S of contaminated fabric - K / S of laundered fabric) / (K / S of contaminated fabric - K / S of uncontaminated fabric) × 100
(K / S is (1-R / 100) / (2R / 100) and R is the reflectance (%) measured by a reflectometer)
(5) Wear resistance
(40 kgf, 80 캜, rpm: 1,500, 2 hours) was measured in accordance with ASTM D 4172 (94), and when it was 0.4 mm or less, it was excellent, 0.4 to 0.5 mm was normal and 0.5 mm was low .
(Examples 1 to 15 and Comparative Examples 1 to 3)
10% by weight of polymethyl methacrylate (weight average molecular weight 15,000 g / mol) and 30% by weight of polyoxyethylene lauryl ether (Brij 35 solution) were added to the reactor and mixed and stirred. At this time, the temperature of the reactor was adjusted to 60 ° C. Next, a mixed solvent of 30% by weight of 1,1,1-trichloroethane and 10% by weight of ethylene glycol monomethyl ether was added and mixed, and then the temperature was lowered to 30 DEG C to obtain a base oil for internal combustion engine (GS Caltex Kixx DELO V1 15W / 40). Thereafter, 18 wt% of EDTA and 2 wt% of propionic acid were added and mixed. At this time, the auxiliary agent was added in an amount of 80 parts by weight based on 100 parts by weight of the base oil.
In Examples 2 to 15 and Comparative Examples 1 to 3, as shown in Tables 1 and 2, the content of each component other than the base oil was adjusted, and the properties The results are shown in Tables 1 and 2 below.
[Table 1]
[Table 2]
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Various modifications and variations are possible in light of the above teachings.
Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .
Claims (12)
The adjuvant
(a) a (meth) acrylate-based polymer,
(b) polyoxyethylene aliphatic alcohol esters,
(c) a compound selected from the group consisting of ethylenediaminetetraacetic acid (EDTA), dihydroxyethylethylenediamine tetraacetic acid (DHEDTA), 1,3-propanediamine tetraacetic acid (1,3-PDTA), diethylenetriaminepentaacetic acid (DTPA) Ethylenetetraaminehexaacetic acid (TTNA), and the like.
(d) at least one organic acid selected from propionic acid, thioglycolic acid, citric acid and acetic acid, and
(e) a mixed solvent of a halogenated hydrocarbon solvent and an ether solvent
≪ / RTI >
(B) 10 to 35% by weight of a polyoxyethylene aliphatic alcohol ester, (c) 10 to 35% by weight of an ammonium chelate, (d) 1 to 15% by weight of an organic acid 1 And (e) 5 to 40% by weight of a mixed solvent.
Wherein the weight ratio of the halogenated hydrocarbon solvent to the ether solvent is 3: 1 to 5: 1.
Wherein the halogenated hydrocarbon solvent is at least one selected from the group consisting of 1,2,4-trichlorobenzene, 1,1,1-trichloroethane, 1,1,2-trichloroethane and trichlorethylene, (2-methoxyethanol), ethylene glycol monoethyl ether (2-ethoxy ethanol), ethylene glycol monopropyl ether (2-propoxy ethanol), ethylene glycol monoisopropyl ether Propoxyethanol), ethylene glycol monobutyl ether (2-butoxyethanol), ethylene glycol monophenyl ether (2-phenoxyethanol), ethylene glycol monobenzyl ether (2-benzyloxyethanol), diethylene glycol monomethyl ether Diethyleneglycol monoethyl ether (2- (2-ethoxy-ethoxy) ethanol, diethylene glycol mono-n-butyl ether (2- (2-methoxyethoxy) Ethoxyethoxy) ethanol), ethylene glycol dimethyl ether When ethane), ethylene glycol diethyl ether (diethoxyethane) and ethylene glycol dibutyl ether (d'ethane) any one or more engine oil treatment composition is selected from the.
The composition further comprises (f) a buffer selected from sodium acetate and sodium bicarbonate.
The (meth) acrylate polymer (a) is at least one selected from a homopolymer, a copolymer and a terpolymer of a (meth) acrylate monomer.
Wherein the composition has a pH in the range of 7 to 8.5.
Wherein the composition further comprises any additive selected from among antioxidants, clean dispersants, extreme pressure agents, pigments, dyes, corrosion inhibitors and defoamers.
Wherein the antioxidant is triphenyl phosphite.
Wherein the clean dispersant is a benzyl amine.
Wherein the extreme pressure agent is an amine phosphate ester.
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| KR1020160024312A KR101753379B1 (en) | 2016-02-29 | 2016-02-29 | Engine oil treatment composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085700A (en) * | 2021-12-07 | 2022-02-25 | 江苏瑞安汽车实业有限公司 | Cleaning agent for engine and use method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4377155B2 (en) | 2002-05-31 | 2009-12-02 | 三洋化成工業株式会社 | Lubricating oil additive and lubricating oil composition |
| JP2014136772A (en) * | 2013-01-18 | 2014-07-28 | Sanyo Chem Ind Ltd | Viscosity index improver, lubricating oil composition and method for producing viscosity index improver |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4377155B2 (en) | 2002-05-31 | 2009-12-02 | 三洋化成工業株式会社 | Lubricating oil additive and lubricating oil composition |
| JP2014136772A (en) * | 2013-01-18 | 2014-07-28 | Sanyo Chem Ind Ltd | Viscosity index improver, lubricating oil composition and method for producing viscosity index improver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085700A (en) * | 2021-12-07 | 2022-02-25 | 江苏瑞安汽车实业有限公司 | Cleaning agent for engine and use method thereof |
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