WO2023234295A1 - Composition d'huile lubrifiante - Google Patents

Composition d'huile lubrifiante Download PDF

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Publication number
WO2023234295A1
WO2023234295A1 PCT/JP2023/020101 JP2023020101W WO2023234295A1 WO 2023234295 A1 WO2023234295 A1 WO 2023234295A1 JP 2023020101 W JP2023020101 W JP 2023020101W WO 2023234295 A1 WO2023234295 A1 WO 2023234295A1
Authority
WO
WIPO (PCT)
Prior art keywords
mass
lubricating oil
oil composition
less
component
Prior art date
Application number
PCT/JP2023/020101
Other languages
English (en)
Japanese (ja)
Inventor
将矢 久保田
Original Assignee
出光興産株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 出光興産株式会社 filed Critical 出光興産株式会社
Publication of WO2023234295A1 publication Critical patent/WO2023234295A1/fr

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Classifications

    • 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
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
    • 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
    • C10M169/04—Mixtures of base-materials and additives

Definitions

  • the lubricating oil composition of a preferred embodiment of the present invention is excellent in the suppressing effect of deposit generation, cleanliness and stability, and fuel efficiency, regardless of the usage environment. Therefore, the lubricating oil composition of one embodiment of the present invention can be suitably used, for example, for lubricating an internal combustion engine.
  • the numerical range from the lower limit value to the upper limit value can be defined by appropriately selecting from each option and combining them arbitrarily.
  • the description "60 to 100” means a range of "60 or more (60 or more than 60) and 100 or less (100 or less than 100)". do.
  • a plurality of the various requirements described as preferred embodiments described herein can be combined.
  • it is 18.0% by mass or more, particularly preferably 19.0% by mass or more, and from the viewpoint of providing a lubricating oil composition with good fuel economy, preferably 40.0% by mass or less, more Preferably 37.0% by mass or less, more preferably 35.0% by mass or less, more preferably 33.0% by mass or less, even more preferably 30.0% by mass or less, even more preferably 27.0% by mass or less, and more It is more preferably 25.0% by mass or less, particularly preferably 23.0% by mass or less.
  • the content ratio of the medium fraction (Mf) having 22 to 31 carbon atoms in the component (A) used in one aspect of the present invention is preferably 35.0% based on the total amount (100% by mass) of the component (A). % by mass or more, more preferably 40.0% by mass or more, more preferably 45.0% by mass or more, still more preferably 50.0% by mass or more, still more preferably 55.0% by mass or more, even more preferably 60.0% by mass or more. 0% by mass or more, particularly preferably 65.0% by mass or more, and preferably 85% by mass or less, more preferably 83.5% by mass or less, more preferably 81.0% by mass or less, even more preferably 80% by mass or less. 0% by mass or less, more preferably 79.0% by mass or less, even more preferably 78.0% by mass or less, particularly preferably 77.0% by mass or less.
  • the ratio and the content ratio of medium fraction (Mf) having 22 or more carbon atoms and 31 or more carbon atoms mean values measured according to the method described in Examples.
  • base number refers to perchlorine based on "9. Potentiometric titration method (base number/perchloric acid method)" of JIS K2501 "Petroleum products and lubricating oils - Neutralization number test method”. Means the value measured by the acid method.
  • calcium is added as component (B1).
  • the content in terms of atoms is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and more preferably 0.07% by mass, based on the total amount (100% by mass) of the lubricating oil composition.
  • the content of calcium atoms (Ca) means a value measured in accordance with JPI-5S-38-92.
  • 50% by mass or more more preferably 1.00% by mass or more, even more preferably 1.50% by mass or more, even more preferably 1.70% by mass or more, particularly preferably 2,00% by mass or more, and 8.00% by mass or less, 7.00% by mass or less, 6.00% by mass or less, 5.00% by mass or less, 4.00% by mass or less, 3.70% by mass or less, 3.50% by mass or less, 3 It may be .20% by mass or less, 3.00% by mass or less, 2.70% by mass or less, or 2.50% by mass or less.
  • Component (C) used in one embodiment of the present invention includes, for example, non-dispersed polymethacrylate, dispersed polymethacrylate, olefin copolymer (e.g., ethylene-propylene copolymer, etc.), dispersed olefin copolymer, etc.
  • olefin copolymer e.g., ethylene-propylene copolymer, etc.
  • dispersed olefin copolymer e.g., ethylene-propylene copolymer, etc.
  • examples include polymers such as polymers, styrene copolymers (eg, styrene-diene copolymers, styrene-isoprene copolymers, etc.).
  • the lubricating oil composition of one aspect of the present invention may further contain a pour point depressant.
  • the pour point depressants may be used alone or in combination of two or more.
  • Examples of pour point depressants used in one embodiment of the present invention include ethylene-vinyl acetate copolymers, condensates of chlorinated paraffins and naphthalene, condensates of chlorinated paraffins and phenols, polymethacrylates, and polyalkylstyrenes. etc.
  • the lubricating oil composition of one embodiment of the present invention may further contain a rust inhibitor.
  • the rust inhibitors may be used alone or in combination of two or more.
  • Examples of the rust preventive agent used in one embodiment of the present invention include fatty acids, alkenyl succinic acid half esters, fatty acid soaps, alkyl sulfonates, polyhydric alcohol fatty acid esters, fatty acid amines, oxidized paraffins, alkyl polyoxyethylene ethers, and the like. Can be mentioned.
  • the kinematic viscosity at 100°C of the lubricating oil composition is a lubricating oil with better fuel efficiency.
  • it is preferably 10.0 mm 2 /s or less, more preferably 9.8 mm 2 /s or less, and preferably 6.0 mm 2 /s or more, more preferably 7.0 mm 2 / s. s or more, more preferably 8.0 mm 2 /s or more, even more preferably 9.0 mm 2 /s or more.
  • the residual oil percentage of the lubricating oil composition of one embodiment of the present invention is good even when used in a high temperature environment and/or a high pressure environment. From the viewpoint of providing a lubricating oil composition that maintains good fluidity and is highly effective in suppressing deposit generation, preferably 25.0% by mass or more, more preferably 26.0% by mass or more, and even more preferably 27.0% by mass. The content is more preferably 28.0% by mass or more.
  • the lubricating oil composition of one embodiment of the present invention has a rating of preferably 7.0 or higher, more preferably 7.5 or higher, and even Preferably it is 8.0 or more, and even more preferably 8.5 or more.
  • the specific procedure and conditions for the hot tube test described above are the same as those described in Examples below.
  • the lubricating oil composition of one embodiment of the present invention is excellent in suppressing deposit generation, cleanliness and stability, and fuel efficiency, regardless of the usage environment. Therefore, the lubricating oil composition of one embodiment of the present invention can be suitably used, for example, for lubricating an internal combustion engine. Therefore, the lubricating oil composition of one embodiment of the present invention can be applied to various devices that can exhibit the above characteristics, and can be suitably used for lubrication between various parts in an internal combustion engine.
  • the present invention can be suitably used for lubricating various parts in diesel engines in particular. Further, it can be suitably used for lubrication between various parts in a supercharger equipped with an EGR system that re-inhales and recirculates a portion of exhaust gas.
  • Hot tube test A hot tube test was conducted in accordance with JPI-5S-55-99. Specifically, while maintaining the temperature of the glass tube at 290° C., 0.3 mL/hour of the lubricating oil composition prepared in Examples and Comparative Examples and air were introduced into a glass tube with an inner diameter of 2 mm. A hot tube test was conducted with continuous flow at a rate of 10 mL/min for 16 hours. After the hot tube test, the degree of discoloration inside the glass tube is determined by comparing the lacquer adhered to the glass tube with the color sample, scoring 10 points if it is colorless and transparent, and 0 points if it is black, in 0.5 increments. I gave them a score on a 21-point scale.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

L'invention concerne une composition d'huile lubrifiante comprenant une huile de base (A) et un détergent à base de métal (B), le rapport de teneur d'un composant lourd (Hf) ayant 32 atomes de carbone ou plus dans le composant (A) étant d'au moins 14,0 % en masse par rapport à la quantité totale du composant (A) ; et le composant (B) contenant un salicylate de calcium surbasique (B1) ayant un indice de base d'au moins 100 mg KOH/g, et le rapport de teneur du composant (B1) dans le composant (B) étant d'au moins 35,0 % en masse par rapport à la quantité totale du composant (B).
PCT/JP2023/020101 2022-05-31 2023-05-30 Composition d'huile lubrifiante WO2023234295A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-088577 2022-05-31
JP2022088577A JP2023176342A (ja) 2022-05-31 2022-05-31 潤滑油組成物

Publications (1)

Publication Number Publication Date
WO2023234295A1 true WO2023234295A1 (fr) 2023-12-07

Family

ID=89024821

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/020101 WO2023234295A1 (fr) 2022-05-31 2023-05-30 Composition d'huile lubrifiante

Country Status (2)

Country Link
JP (1) JP2023176342A (fr)
WO (1) WO2023234295A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1180771A (ja) * 1997-09-11 1999-03-26 Nippon Oil Co Ltd ディーゼルエンジン用潤滑油組成物
JP2016196595A (ja) * 2015-04-06 2016-11-24 東燃ゼネラル石油株式会社 潤滑油組成物

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1180771A (ja) * 1997-09-11 1999-03-26 Nippon Oil Co Ltd ディーゼルエンジン用潤滑油組成物
JP2016196595A (ja) * 2015-04-06 2016-11-24 東燃ゼネラル石油株式会社 潤滑油組成物

Also Published As

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JP2023176342A (ja) 2023-12-13

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