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JPH0345697A - lubricating oil composition - Google Patents

lubricating oil composition

Info

Publication number
JPH0345697A
JPH0345697A JP1178937A JP17893789A JPH0345697A JP H0345697 A JPH0345697 A JP H0345697A JP 1178937 A JP1178937 A JP 1178937A JP 17893789 A JP17893789 A JP 17893789A JP H0345697 A JPH0345697 A JP H0345697A
Authority
JP
Japan
Prior art keywords
zinc
weight
oil
lubricating oil
oils
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP1178937A
Other languages
Japanese (ja)
Other versions
JP2795911B2 (en
Inventor
Kazushi Hata
畑　一志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
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 Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Priority to JP1178937A priority Critical patent/JP2795911B2/en
Priority to DE90113167T priority patent/DE69001462T2/en
Priority to EP90113167A priority patent/EP0407977B1/en
Priority to KR1019900010669A priority patent/KR930010530B1/en
Publication of JPH0345697A publication Critical patent/JPH0345697A/en
Priority to US07/707,982 priority patent/US5198129A/en
Application granted granted Critical
Publication of JP2795911B2 publication Critical patent/JP2795911B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
    • 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
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
    • C10M107/04—Polyethene
    • 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
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/04—Hydroxy compounds
    • C10M129/06—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C10M137/10—Thio derivatives
    • C—CHEMISTRY; METALLURGY
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    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • C—CHEMISTRY; METALLURGY
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    • 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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    • C10M155/00—Lubricating compositions characterised by the additive being a macromolecular compound containing atoms of elements not provided for in groups C10M143/00 - C10M153/00
    • C10M155/02—Monomer containing silicon
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    • 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
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    • 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
    • C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
    • C—CHEMISTRY; METALLURGY
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    • C10M167/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
    • C—CHEMISTRY; METALLURGY
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C—CHEMISTRY; METALLURGY
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/022—Well-defined aliphatic compounds saturated
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/024—Well-defined aliphatic compounds unsaturated
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/04—Well-defined cycloaliphatic compounds
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    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
    • C10M2205/0225—Ethene used as base material
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    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
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    • C10M2207/26—Overbased carboxylic acid salts
    • C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
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    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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    • C10M2209/084—Acrylate; Methacrylate
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    • C10M2219/046—Overbased sulfonic acid salts
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    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
    • C10M2219/089—Overbased salts
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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は油圧作動油、トラフシラン油、軸受油、歯車油
、エンジン油等に好適に用いられる潤滑油組成物に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lubricating oil composition suitable for use in hydraulic oil, trough silane oil, bearing oil, gear oil, engine oil, and the like.

〔従来の技術〕[Conventional technology]

油圧作動油、トラクション油、軸受油、歯車油、エンジ
ン油等の潤滑上、耐摩耗性、耐荷重能、熱及び酸化安定
性が要求される潤滑油には、従来からジチオリン酸亜鉛
が広く用いられている。Zinc dithiophosphate has traditionally been widely used in lubricating oils that require wear resistance, load carrying capacity, thermal and oxidation stability, such as hydraulic fluids, traction oils, bearing oils, gear oils, and engine oils. It is being

最近これらの潤滑油の使用環境が過酷になり、特に高温
下での使用に耐え得る熱及び酸化安定性の高い潤滑油が
求められるようになってきた。Recently, the environments in which these lubricating oils are used have become harsher, and there has been a demand for lubricating oils with high thermal and oxidation stability that can withstand use under particularly high temperatures.

熱及び酸化安定性を改良するため、特開昭６０−２４８
７９６号公報には、基油にジチオリン酸亜鉛及び含窒素
共重合体、金属系清浄分散剤、無灰清浄分散剤等を添加
することが記載されているが、耐荷重能、耐摩耗性が損
なわれたり、熱及び酸化安定性が十分でなく、潤滑油の
スラッジ生成の防止、着変色の防止が十分であるとは言
えなかった。To improve thermal and oxidative stability, JP-A-60-248
Publication No. 796 describes adding zinc dithiophosphate, a nitrogen-containing copolymer, a metallic detergent dispersant, an ashless detergent dispersant, etc. to the base oil, but the load carrying capacity and abrasion resistance are The heat and oxidation stability was insufficient, and the prevention of sludge formation and discoloration of the lubricating oil was not sufficient.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

本発明は、前記事情に基づいてなされたもので、その目
的とするところは耐荷重能、耐摩耗性が優れる上に、さ
らに熱及び酸化安定性に優れ、スラッジの生成、着変色
を抑制し、熱、酸化劣化寿命の延長を可能とする潤滑油
組成物を提供することにある。The present invention has been made based on the above circumstances, and aims to provide excellent load-bearing capacity and wear resistance, as well as excellent heat and oxidation stability, and to suppress sludge formation and discoloration. The object of the present invention is to provide a lubricating oil composition that can extend the lifespan of a lubricating oil composition against thermal and oxidative deterioration.

〔課題を解決するための手段〕[Means to solve the problem]

本発明者らは、前記課題を解決するために鋭意研究を重
ねた結果、基油にジチオリン酸亜鉛とともに炭素数１６
〜２４の不飽和脂肪族アルコールを一定割合で配合する
ことにより、前記目的を満足する潤滑油組成物が得られ
ることを見出し、この知見に基づいて本発明を完成する
に至った。As a result of intensive research to solve the above problems, the present inventors have discovered that the base oil contains zinc dithiophosphate and carbon atoms having 16 carbon atoms.
It has been discovered that a lubricating oil composition that satisfies the above objectives can be obtained by blending 24 unsaturated aliphatic alcohols in a certain proportion, and based on this knowledge, the present invention has been completed.

すなわち、本発明は基油に組成物全体に対して（Ａ）０
．０５〜５重量％のジチオリン酸亜鉛及び（Ｂ）０．０
１〜１０重量％の炭素数が１６〜２４の不飽和脂肪族ア
ルコールを（Ｂ）／　（Ａ）の成分割合が重量比でＯ９
！〜１０となるように配合したことを特徴とする潤滑油
組成物を提供するものである。That is, in the present invention, (A)0 is added to the base oil for the entire composition.
．． 05-5% by weight of zinc dithiophosphate and (B) 0.0
1 to 10% by weight of unsaturated aliphatic alcohol having 16 to 24 carbon atoms in a weight ratio of (B)/(A) to O9
! The present invention provides a lubricating oil composition characterized in that it is blended in such a way that it has a lubricating oil composition of 10 to 10.

本発明の組成物において、基油としては潤滑油・に用い
られているものであれば特に制限はないが、通常４０’
Ｃにおける動粘度が５〜１０，０００ｃＳｔの鉱油又は
合成油が用いられる。In the composition of the present invention, the base oil is not particularly limited as long as it is used in lubricating oils, but usually 40'
Mineral oil or synthetic oil having a kinematic viscosity at C of 5 to 10,000 cSt is used.

鉱油としては、上記の条件を満たせば特に制限はなく１
、石油の潤滑油留分を溶剤精製、水素化精製、白土精製
又はこれらの組み合わせにより精製したものや、潤滑油
の溶剤抽出により得られる高芳香族留分又はその水素化
物等が挙げられる。また、合成油としてはアルキル化芳
香族化合物、ポリ−α−オレフィン油、エステル油、ジ
エステル油、ヒンダードエステル油、合成ナフテン油、
ポリグリコール油及びこれらの混合物等が挙げられる。As mineral oil, there are no particular restrictions as long as the above conditions are met.
Examples include those obtained by refining lubricating oil fractions of petroleum by solvent refining, hydrorefining, clay refining, or a combination thereof, and highly aromatic fractions obtained by solvent extraction of lubricating oils or hydrides thereof. In addition, synthetic oils include alkylated aromatic compounds, poly-α-olefin oils, ester oils, diester oils, hindered ester oils, synthetic naphthenic oils,
Examples include polyglycol oils and mixtures thereof.

本発明の組成物において（Ａ）成分として用いられるジ
チオリン酸亜鉛（ＺｎＤＴＰ）は次の一般式（１）で表
される化合物である。Zinc dithiophosphate (ZnDTP) used as component (A) in the composition of the present invention is a compound represented by the following general formula (1).

Ｃ式中、Ｒ１，Ｑｔ、Ｒ３及びＲ４はそれぞれ炭素数２
〜３０の第−級若しくは第二級アルキル基、シクロアル
キル基、アリール基又はアルキルアリール基である。） 具体的には、ジ−ｎ−プロピルジチオリン酸亜鉛、ジイ
ソプロピルジチオリン酸亜鉛、ジ−ｎ−ブチルジチオリ
ン酸亜鉛、ジ−イソブチルジチオリン酸亜鉛、ジー５ｅ
ｃ−ブチルジチオリン酸亜鉛、ジ−ｎ−アミルジチオリ
ン酸亜鉛、ジアリールジチオリン酸亜鉛、ジーｎ−へキ
シルジチオリン酸亜鉛、ジー５ｅｃ−へキシルジチオリ
ン酸亜鉛、ジ（２−エチルヘキシル）ジチオリン酸亜鉛
、ジデシルジチオリン酸亜鉛等のジアルキルジチオリン
酸亜鉛、ジフェニルジチオリン酸亜鉛等のジアリールジ
チオリン酸亜鉛、ジオクチルフエニルジチオリン酸亜鉛
、ジノニルフエニルジチオリン酸亜鉛、ジドデシルフエ
ニルジチオリン酸亜鉛等のジアルキルアリールジチオリ
ン酸亜鉛等を挙げることができる。In formula C, R1, Qt, R3 and R4 each have 2 carbon atoms.
-30 primary or secondary alkyl, cycloalkyl, aryl or alkylaryl groups. ) Specifically, zinc di-n-propyldithiophosphate, zinc diisopropyldithiophosphate, zinc di-n-butyldithiophosphate, zinc di-isobutyldithiophosphate, Z5e
Zinc c-butyldithiophosphate, zinc di-n-amyldithiophosphate, zinc diaryldithiophosphate, zinc di-n-hexyldithiophosphate, zinc di-5ec-hexyldithiophosphate, zinc di(2-ethylhexyl)dithiophosphate, zinc diaryldithiophosphate, Zinc dialkyldithiophosphate such as zinc decyldithiophosphate, zinc diaryldithiophosphate such as zinc diphenyldithiophosphate, zinc dioctylphenyldithiophosphate, zinc dinonylphenyldithiophosphate, zinc dialkyldithiophosphate such as zinc didodecylphenyldithiophosphate. Zinc etc. can be mentioned.

上記（Ａ）成分は組成物全体に対して、０．０５〜５．
０重量％、好ましくは０．１〜３．０重量％の割合で配
合される。（Ａ）ｅ、分の割合が０．０５重量％未満で
あると、耐摩耗性、耐荷重能の改良の効果が小さく、（
Ａ）成分の割合が５．０重量％を超えてもそれ以上の添
加効果はでない。The amount of component (A) above is 0.05 to 5.
It is blended in a proportion of 0% by weight, preferably 0.1 to 3.0% by weight. (A) When the proportion of e and min is less than 0.05% by weight, the effect of improving wear resistance and load-bearing capacity is small;
Even if the proportion of component A) exceeds 5.0% by weight, there is no further effect of addition.

本発明の組成物において（Ｂ）成分として用いられる炭
素数が１６〜２４の不飽和脂肪族アルコールとしては、
上記炭素数で分子中に少なくとも一個の二重結合を有す
るアルコールであればいずれをも使用することができる
。好ましくは、ヨウ素価が約５０以上あるアルコールが
よい０例えば、シス−１１−へキサデセン−１−オール
（ＣＩ＆Ｈ３□Ｏ）、シス−９−オクタデセン−１−オ
ール（オレイルアルコール、Ｃ＋５ＨｓａＯ）　、３．
７゜１１．１５−テトラメチル−２−ヘキサデセン−１
−オール（Ｃｔ　ｏ　Ｈａ。Ｏ）、９−エイコセン−１
−オール（Ｃ２゜Ｈ４゜０）、１１−トコセン−１−オ
ール（Ｃ，、Ｈ，，０）、１３−トコセン−１−オール
（Ｃ，、Ｈ，、Ｏ）、１２−テトラコセンー１−オール
（Ｃ！４Ｈ４１０）、１３−テトラコセンー１−オール
ＣＣｔ−Ｈａｍ○）等が挙げられる。The unsaturated aliphatic alcohol having 16 to 24 carbon atoms used as component (B) in the composition of the present invention includes:
Any alcohol having the above carbon number and at least one double bond in the molecule can be used. Preferably, alcohols having an iodine value of about 50 or more are preferred.For example, cis-11-hexadecen-1-ol (CI&H3□O), cis-9-octadecen-1-ol (oleyl alcohol, C+5HsaO), 3.
7゜11.15-tetramethyl-2-hexadecene-1
-ol (CtoHa.O), 9-eicosene-1
-ol (C2゜H4゜0), 11-tocosen-1-ol (C,,H,,0), 13-tocosen-1-ol (C,,H,,O), 12-tetracosen-1-ol (C!4H410), 13-tetracosen-1-ol CCt-Ham○), and the like.

これらの中で、１１−トコセン−１−オール、１３−ト
コセン−１−オール、９−エイコセン−１−オール、シ
ス−９−オクタデセン−１−オール（オレイルアルコー
ル）等が特に好ましく用いられる。Among these, 11-tocosen-1-ol, 13-tocosen-1-ol, 9-eicosen-1-ol, cis-9-octadecen-1-ol (oleyl alcohol) and the like are particularly preferably used.

上記（Ｂ）Ｊｆｆ１分は組成物全体に対して０．０１〜
１０重量％、好ましくは０．０５〜６．０重量％の割合
で配合され、かつ（Ｂ）成分と（Ａ）成分の割合（Ｂ）
／（Ａ）（重量比〕は０．１〜１０、好ましくは０．２
〜３．０の割合で配合される。（Ｂ）成分の割合が０．
０１重量％未満であったり、（Ｂ）／（Ａ）が０．１未
満であると（Ｂ）成分のスラッジ生成抑制の効果が小さ
く、（Ｂ）ｅ、分の割合が１０重量％を超えたり、（Ｂ
）／　（Ａ）が３．０を超えてもそれ以上の添加効果は
でない。The above (B) Jff1 minute is 0.01 to 0.01 to the entire composition.
10% by weight, preferably 0.05 to 6.0% by weight, and the ratio of component (B) to component (A) (B)
/(A) (weight ratio) is 0.1 to 10, preferably 0.2
It is blended at a ratio of ~3.0. (B) The proportion of the components is 0.
If the ratio of (B)/(A) is less than 0.1% by weight, the effect of component (B) in suppressing sludge formation will be small, and the ratio of (B) e, to more than 10% by weight. Or (B
)/(A) exceeds 3.0, there is no further effect of addition.

また、本発明のｍａ物では、基油に上記（Ａ）成分及び
（Ｂ）成分に加えて、（Ｃ）ｔｊ、分としてリン酸エス
テル、亜リン酸エステル、リン酸エステル又は亜リン酸
エステルのアミン塩、及び清浄分散剤から選ばれる少な
くとも１種の化合物を配合することができる。In addition, in the ma product of the present invention, in addition to the above (A) component and (B) component, (C) tj, phosphate ester, phosphite ester, phosphate ester, or phosphite ester is added to the base oil. At least one compound selected from amine salts and detergent-dispersing agents can be blended.

リン酸エステルとしては、次の一般式（ＩＩ）で表され
る化合物、亜リン酸エステルとしては、次に一般式〔■
〕で表される化合物が好適に使用される。Phosphate esters include compounds represented by the following general formula (II), and phosphite esters include the following general formula [■
] Compounds represented by these formulas are preferably used.

（ 式中、 Ｈ％、 ９ｋ。( During the ceremony, H%, 9k.

Ｒ’ｌ、 Ｒ１、 Ｒ９及びＲＩ＠ は水素原子 又は炭素数４〜３０のアルキル基、アリール基、アルキ
ル買換アリール基などを示すもので、それぞれ同一でも
異なっていてもよい、） リン酸エステル及び亜リン酸エステルの具体例としては
、トリフェニルホスフェート、トリクレジルホスフェー
ト、トリキシレニルホスフェート、トリ（イソプロピル
フェニル）ホスフェート、ブチルアシッドホスフェート
、２−エチルへキシルアシッドホスフェート、ラウリル
アシッドホスフェート、オレイルアシッドホスフェート
、ステアリルアシッドホスフェート、ジブチルハイドロ
ゲンホスファイト、ジオクチルハイドロゲンホスファイ
ト、ジオレイルハイドロゲンホスファイト、ジステアリ
ルハイドロゲンホスファイトなどが挙げられる。R'l, R1, R9 and RI@ represent a hydrogen atom or an alkyl group having 4 to 30 carbon atoms, an aryl group, an alkyl substituted aryl group, etc., and each may be the same or different.) Phosphate ester Specific examples of phosphorous acid esters include triphenyl phosphate, tricresyl phosphate, tricylenyl phosphate, tri(isopropylphenyl) phosphate, butyl acid phosphate, 2-ethylhexyl acid phosphate, lauryl acid phosphate, and oleyl acid. Examples include phosphate, stearyl acid phosphate, dibutyl hydrogen phosphite, dioctyl hydrogen phosphite, dioleyl hydrogen phosphite, distearyl hydrogen phosphite, and the like.

リン酸エステル又は亜リン酸エステルのアミン塩として
は、ラウリルアミン塩、オレイルアミン塩、ココナツツ
アミン塩、牛脂アごン塩などのアミン塩が挙げられる。Examples of amine salts of phosphoric acid esters or phosphite esters include amine salts such as lauryl amine salt, oleyl amine salt, coconut amine salt, and tallow agon salt.

清浄分散剤としては、石油系スルホネート、ホスホネー
トなどの金属系清浄分散剤やコハク酸系、アミン系など
の無灰清浄分散剤が挙げられる。Examples of the detergent dispersant include metal detergent dispersants such as petroleum-based sulfonates and phosphonates, and ashless detergent dispersants such as succinic acid and amine detergents.

上記（Ｃ）成分は組成物全体に対して、好ましくは０．
０１〜５．０重量％、より好ましくは０．１〜１゜５重
量％、さらに好ましくは０．２〜１．０重量％の割合で
配合される。（Ｃ）成分の添加により耐摩耗性がさらに
向上し、又は酸化安定性が向上する。The amount of component (C) is preferably 0.00% relative to the entire composition.
It is blended in a proportion of 0.01 to 5.0% by weight, more preferably 0.1 to 1.5% by weight, and even more preferably 0.2 to 1.0% by weight. Addition of component (C) further improves wear resistance or oxidation stability.

さらに本発明の組成物には必要に応じて通常用いられて
いる他の潤滑油添加剤、例えば酸化防止剤、粘度指数向
上剤、腐食防止剤、さび止め剤、金属不活性化剤、消泡
剤等を添加することも可能である。Furthermore, the composition of the present invention may optionally contain other lubricating oil additives commonly used, such as antioxidants, viscosity index improvers, corrosion inhibitors, rust inhibitors, metal deactivators, antifoaming agents, etc. It is also possible to add agents, etc.

〔実施例〕〔Example〕

以下、本発明を実施例に基づいて詳細に説明するが、本
発明はこれに限定されるものではない。Hereinafter, the present invention will be explained in detail based on Examples, but the present invention is not limited thereto.

実施例１−１４、比較例１〜５ 第１表に実施例及び比較例の潤滑油の組成と試験結果に
ついて示す。Examples 1-14, Comparative Examples 1-5 Table 1 shows the compositions and test results of the lubricating oils of Examples and Comparative Examples.

なお、実施例及び比較例において、試験方法は下記の方
法によって行った。In addition, in the Examples and Comparative Examples, the test method was performed by the following method.

（１）着変色性、（２）スラッジ生成防止性ＪＩＳ　　
Ｋ　　２５４０　　潤滑油熱安定度試験方法に準拠して
、試験温度（油温）１４０℃で行った。但し、銅、鉄及
びアルミニウム線（各々φ１゜６謹Ｘ８Ｃ１ｌ）を触媒
として用いた。(1) Discoloration, (2) Sludge formation prevention JIS
The test was conducted at a test temperature (oil temperature) of 140° C. in accordance with the K 2540 lubricating oil thermal stability test method. However, copper, iron, and aluminum wires (each φ1°6mm x 8C1l) were used as catalysts.

評価は（１）の着変色性については、２４時間（ｈ）毎
に試料を取り出し、色（ＡＳＴＭ　　ＪＩＳＫ　　２５
８０）を試験し、Ａ３７Ｍ色４を越えた時間（ｈ）で表
した。（２）のスラッジ生成防止性については上記試料
を観察し、分離物の析出が認められた時間（ｈ）で表し
た。For the evaluation (1) of discoloration, samples were taken out every 24 hours (h) and the color (ASTM JISK 25
80) was tested and expressed as the time (h) in which the A37M color exceeded 4. Regarding the sludge formation prevention property (2), the above sample was observed and expressed as the time (h) at which separation was observed.

（３）酸化安定性 ＪＩＳ　　Ｋ　　２５１４　３．１項　内燃機関用潤滑
油酸化安定度試験方法（通称ｌ５ＯＴ）に準拠して行っ
た。(3) Oxidation stability Testing was carried out in accordance with JIS K 2514 Section 3.1 Oxidation stability test method for lubricating oils for internal combustion engines (commonly known as 15OT).

ｌ５ＯＴ　　条件 実施例２、比較例１は＠１６５．５°ＣＸ２４ｈで、実
施例１２は０１５０°ＣＸ９６ｈで行った。15OT Conditions Example 2 and Comparative Example 1 were conducted at @165.5°CX24h, and Example 12 was conducted at 0150°CX96h.

（４）耐摩耗性（Ｆａｌｅｘ　ｆｌｔ摩耗性）ＡＳＴＭ
−Ｄ　　２６７０に準拠して行った。(4) Abrasion resistance (Falex flt abrasion resistance) ASTM
-D 2670.

材質　ブロック　５ＵＪ−２（Ｒｃ６２）ピン　　　５
ＫＨ−１（Ｒｃ６５） また、表中の記号は次のものを示している。Material Block 5UJ-2 (Rc62) Pin 5
KH-1 (Rc65) In addition, the symbols in the table indicate the following.

寧１：１５０ニュートラルオイル（出光興産■製） 傘２　　：ＤＯＡ、ジオクチルアジペート（日本クーパ
ー社製） 本３　ニトリメチロールプロパンの脂肪酸エステル、（
日本油脂■製） 率４：１．２−ビスメチルシクロヘキシル−メチルプロ
パン 事５　ニジ−ｓｅｃ−へキシルジチオリン酸亜鉛（ＬＺ
６７７Ａ、ループリシール社製）本６　ニジアルキル（
Ｃ．〜Ｃｈ）ジチオリン酸亜鉛（ＯＬＯＡ２６７、カロ
ナイト化学製）＄７　ニジアリールジチオリン酸亜鉛（
ＯＬＯＡ２６０、カロナイト化学製） ＊８ 本９ ＄１０ 事１１ ＄１２ 廖１３ ＄１４ ＊１５ ニオレイルアルコール、共和油脂■製 ：８５ＴＢＮ　　Ｃａスルホネート＋ １５０ＴＢＮ　　Ｃａフィネート（１　：　１）３００
７ＢＮ　　Ｃａスルホネート＋ １５０ＴＢＮ　　Ｃａフィネート（１　：　２）：ＴＣ
Ｐ（）リクレジルホスフエート）、協和醗酵■製 ：ポリメタアクリレート　数平均分子量６万、三洋化戒
■製、 ：シリコーンオイル ：カルコール２０，花王製 ニオレイルオレエート、油化産業製 １３−トコセン−１−オール、オレイルアルコール等の
Ｂ成分、すなわち特に炭素数１８〜２２の不飽和脂肪族
アルコールの配合により、熱安定性及び酸化安定性が改
善され、特に着変色性、スラッジ生成防止性の改善が顕
著である。また比較例４及び５から明かなように、本発
明以外の化合物は、目的とする効果は認められない。Ning 1: 150 neutral oil (manufactured by Idemitsu Kosan) Umbrella 2: DOA, dioctyl adipate (manufactured by Nippon Cooper) Book 3 Fatty acid ester of nitrimethylolpropane, (
Nizi-sec-hexyldithiophosphate (LZ) Ratio 4: 1.2-bismethylcyclohexyl-methylpropane 5
677A, manufactured by Loupli Seal Co., Ltd.) Book 6 Nidialkyl (
C. ~Ch) Zinc dithiophosphate (OLOA267, Caronite Chemical) $7 Zinc diaryldithiophosphate (
OLOA260, manufactured by Caronite Chemical) *8 Book 9 $10 Item 11 $12 Liao 13 $14 *15 Nioleyl alcohol, Kyowa Yushi ■: 85TBN Ca sulfonate + 150TBN Ca finate (1:1) 300
7BN Ca sulfonate + 150TBN Ca finate (1:2):TC
P (licresyl phosphate), manufactured by Kyowa Hakko ■: Polymethacrylate, number average molecular weight 60,000, manufactured by Sanyo Kakai ■: Silicone oil: Calcol 20, Nioleyl oleate manufactured by Kao, manufactured by Yuka Sangyo 13- By blending component B such as tocosen-1-ol and oleyl alcohol, that is, unsaturated aliphatic alcohols having 18 to 22 carbon atoms, thermal stability and oxidation stability are improved, and in particular, discoloration and sludge formation prevention properties are achieved. The improvement is remarkable. Furthermore, as is clear from Comparative Examples 4 and 5, the desired effects were not observed with compounds other than those of the present invention.

〔発明の効果〕〔Effect of the invention〕

本発明により、耐荷重能、耐摩耗性が優れる上に、さら
に熱及び酸化安定性に優れ、スラッジの生成、着変色を
抑制し、熱、酸化劣化寿命の延長を可能とする潤滑油組
成物が得られた。The present invention provides a lubricating oil composition that not only has excellent load carrying capacity and wear resistance, but also excellent thermal and oxidative stability, suppresses sludge formation and discoloration, and extends the life of thermal and oxidative deterioration. was gotten.

従って、本発明の潤滑油組成物は油圧作動油、トラフシ
ラン油、軸受油、歯車油、エンジン油等として、幅広く
かつ有効に利用される。Therefore, the lubricating oil composition of the present invention can be widely and effectively used as hydraulic oil, trough silane oil, bearing oil, gear oil, engine oil, etc.

Claims (1)

【特許請求の範囲】 １、基油に組成物全体に対して（Ａ）０．０５〜５重量
％のジチオリン酸亜鉛及び（Ｂ）０．０１〜１０重量％
の炭素数が１６〜２４の不飽和脂肪族アルコールを（Ｂ
）／（Ａ）の成分割合が重量比で０．１〜１０となるよ
うに配合したことを特徴とする潤滑油組成物。 ２、基油に組成物全体に対して（Ａ）０．０５〜５重量
％のジチオリン酸亜鉛及び（Ｂ）０．０１〜１０重量％
の炭素数が１６〜２４の不飽和脂肪族アルコールを（Ｂ
）／（Ａ）の成分割合が重量比で０．１〜１０となるよ
うに配合し、さらに（Ｃ）リン酸エステル、亜リン酸エ
ステル、リン酸エステル又は亜リン酸エステルのアミン
塩及び清浄分散剤から選ばれる少なくとも１種の化合物
を配合したことを特徴とする潤滑油組成物。[Claims] 1. Base oil contains (A) 0.05 to 5% by weight of zinc dithiophosphate and (B) 0.01 to 10% by weight based on the entire composition.
An unsaturated aliphatic alcohol having 16 to 24 carbon atoms (B
)/(A) in a weight ratio of 0.1 to 10. 2. Base oil contains (A) 0.05 to 5% by weight of zinc dithiophosphate and (B) 0.01 to 10% by weight based on the entire composition.
An unsaturated aliphatic alcohol having 16 to 24 carbon atoms (B
)/(A) in a weight ratio of 0.1 to 10; A lubricating oil composition comprising at least one compound selected from dispersants.
JP1178937A 1989-07-13 1989-07-13 Lubricating oil composition Expired - Fee Related JP2795911B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1178937A JP2795911B2 (en) 1989-07-13 1989-07-13 Lubricating oil composition
DE90113167T DE69001462T2 (en) 1989-07-13 1990-07-10 LUBRICATING OIL COMPOSITION.
EP90113167A EP0407977B1 (en) 1989-07-13 1990-07-10 Lubricating oil composition
KR1019900010669A KR930010530B1 (en) 1989-07-13 1990-07-13 Lubricant composition
US07/707,982 US5198129A (en) 1989-07-13 1991-05-21 Lubricating oil composition containing zinc dithiophosphate

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JP1178937A JP2795911B2 (en) 1989-07-13 1989-07-13 Lubricating oil composition

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JPH0345697A true JPH0345697A (en) 1991-02-27
JP2795911B2 JP2795911B2 (en) 1998-09-10

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JP2004138128A (en) 2002-10-16 2004-05-13 Nissan Motor Co Ltd Sliding member for automotive engine
US6969198B2 (en) 2002-11-06 2005-11-29 Nissan Motor Co., Ltd. Low-friction sliding mechanism
JP3891433B2 (en) 2003-04-15 2007-03-14 日産自動車株式会社 Fuel injection valve
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US8206035B2 (en) 2003-08-06 2012-06-26 Nissan Motor Co., Ltd. Low-friction sliding mechanism, low-friction agent composition and method of friction reduction
JP4973971B2 (en) 2003-08-08 2012-07-11 日産自動車株式会社 Sliding member
JP2005054617A (en) * 2003-08-08 2005-03-03 Nissan Motor Co Ltd Valve system
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JP4117553B2 (en) 2003-08-13 2008-07-16 日産自動車株式会社 Chain drive
JP4539205B2 (en) 2003-08-21 2010-09-08 日産自動車株式会社 Refrigerant compressor
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KR930010530B1 (en) 1993-10-25
EP0407977A1 (en) 1991-01-16
EP0407977B1 (en) 1993-04-28
DE69001462D1 (en) 1993-06-03
JP2795911B2 (en) 1998-09-10
DE69001462T2 (en) 1993-11-04
KR910003081A (en) 1991-02-26

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