JPH0153919B2 - - Google Patents

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Publication number
JPH0153919B2
JPH0153919B2 JP58006657A JP665783A JPH0153919B2 JP H0153919 B2 JPH0153919 B2 JP H0153919B2 JP 58006657 A JP58006657 A JP 58006657A JP 665783 A JP665783 A JP 665783A JP H0153919 B2 JPH0153919 B2 JP H0153919B2
Authority
JP
Japan
Prior art keywords
composition
lubricating oil
acid
oil composition
alkyl group
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.)
Expired
Application number
JP58006657A
Other languages
Japanese (ja)
Other versions
JPS59133297A (en
Inventor
Takamichi Seiki
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 JP58006657A priority Critical patent/JPS59133297A/en
Priority to GB08400045A priority patent/GB2134538B/en
Priority to DE3401149A priority patent/DE3401149A1/en
Priority to FR8400830A priority patent/FR2539755B1/en
Publication of JPS59133297A publication Critical patent/JPS59133297A/en
Publication of JPH0153919B2 publication Critical patent/JPH0153919B2/ja
Granted legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M111/00Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M101/00Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/02Petroleum fractions
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/32Esters
    • C10M105/38Esters of polyhydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M107/00Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/003Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102Aliphatic fractions
    • C10M2203/1025Aliphatic fractions used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/104Aromatic fractions
    • C10M2203/1045Aromatic fractions used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/106Naphthenic fractions
    • C10M2203/1065Naphthenic fractions used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/108Residual fractions, e.g. bright stocks
    • C10M2203/1085Residual fractions, e.g. bright stocks used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/0206Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/283Esters of polyhydroxy compounds
    • C10M2207/2835Esters of polyhydroxy compounds used as base material

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は高温用潤滑油組成物に関し、詳しくは
200℃以上の高温にも耐えうる特にエンジンオイ
ル等として有効な高温用潤滑油組成物に関する。 〔従来の技術および発明が解決しようとする課
題〕 従来、高温用潤滑剤としては各種の合成潤滑油
が知られている。しかしこれらはいずれも170℃
〜200℃が上限であり、それ以上の高温では蒸発
損失が多く潤滑部分に潤滑剤が存在しなくなつた
り、あるいはスラツジが発生して潤滑不能となる
など様々な問題が生じ、実用に供することができ
ない。 しかし、最近実用化されつつある断熱型エンジ
ン用潤滑剤、超高温ガスタービンの軸受潤滑剤、
ターボチヤージヤー付エンジン用潤滑剤などでは
200℃以上の高温、特に300℃以上の高温に耐えう
る潤滑剤が要求されている。このような条件で使
用できる潤滑剤の要求特性は(1)高温での蒸発減量
が少ないこと、(2)高温でのスラツジが発生しない
こと、(3)酸化安定性が良好なこと、および(4)耐荷
重性能が良好であることなどがあげられる。 本発明者は上記従来の潤滑剤の欠点を克服し、
高温で使用できる要求特性をすべて具備した潤滑
剤を開発すべく鋭意研究を重ねた。その結果特定
のヒンダードエステルと合成油よりなる潤滑油組
成物が目的に適うものであることを見出し、本発
明を完成するに至つた。 〔課題を解決するための手段〕 すなわち本発明は、(A)ヒンダードアルコールと
炭素数18の不飽和脂肪酸とのエステル30〜95重量
%および(B)100℃における動粘度が、5〜50cStで
あり、かつエチレン重合体、プロピレン重合体、
エチレン−プロピレン重合体およびカルボン酸エ
ステル系合成油から選ばれた少なくとも1種の合
成油70〜5重量%からなることを特徴とする高温
用潤滑油組成物を提供するものである。 本発明の潤滑油組成物の(A)成分は、前述の如く
ヒンダードアルコールと炭素数18の不飽和脂肪酸
とのエステルである。ここでヒンダードアルコー
ルとしては様々なものがあるが、例えば 一般式 (式中、R1〜R4はそれぞれ水素原子、水酸基、
水酸基含有アルキル基あるいはアルキル基を示
し、かつ少なくとも一つは水酸基あるいは水酸基
含有アルキル基を示す。) で表わされるヒンダードアルコールをあげること
ができ、このうち水酸基含有アルキル基およびア
ルキル基は炭素数1〜3のものが好ましい。具体
的にはトリメチロールプロパン、トリメチロール
エタン、ペンタエリスリトール、ネオペンチルグ
リコール、2−メチル−2−プロピル−1,3−
プロパンジオールなどの多価アルコールを好適な
ものとしてあげることができる。その他前記一般
式には含まれないが、ジペンタエリスリトール等
の化合物もあげることができる。 このヒンダードアルコールとエステル(ヒンダ
ードエステル)を形成する酸は炭素数18の不飽和
脂肪酸でなければならず、他の酸では所望する性
状の潤滑油組成物を得ることはできない。ここで
炭素数18の不飽和脂肪酸としては、具体的にはオ
レイン酸、リノール酸、リノレン酸などの不飽和
脂肪酸を好適なものとしてあげることができる。
なおこの不飽和脂肪酸はその誘導体(例えば酸ハ
ライドなど)の形態で使用してもよいことは勿論
である。 上記のヒンダードアルコールと炭素数18の不飽
和脂肪酸により形成されるヒンダードエステルの
具体例としては、トリメチロールプロパントリオ
レート、ペンタエリスリトールテトラオレート、
ジペンタエリスリトールヘキサオレート、ネオペ
ンチルグリコールジオレートなどのオレートおよ
びそれぞれのリノレート、リノレネートなどをあ
げることができる。 一方、本発明の潤滑油組成物の(B)成分は、エチ
レン重合体、プロピレン重合体、エチレン−プロ
ピレン重合体およびカルボン酸エステル系合成油
から選ばれた合成油であり、これらを単独である
いは混合して用いればよい。エテレン重合体、プ
ロピレン重合体、エチレン−プロピレン重合体と
しては重合度20〜200程度のものが用いられる。
また、カルボン酸エステル系合成油としては、例
えばアジピン酸、アゼライン酸、セバシン酸等の
二塩基酸や炭素数5〜30の直鎖又は分岐飽和脂肪
酸と2−エチルヘキサノール、sec−ブタノール、
3−メチルブタノール、ヒンダードアルコールと
のエステルをあげることができる。 なお、ここでエチレン重合体とは、エチレンと
エチレン以外の他のα−オレフインとの共重合体
を含む概念である。またプロピレン重合体とは、
プロピレンとプロピレン以外の他のα−オレフイ
ンとの共重合体を含む概念である。さらにエチレ
ン−プロピレン重合体とは、エチレン及びプロピ
レンと、これら以外のα−オレフインとの共重合
体を含む概念である。 上記の合成油の粘度は100℃における動粘度が
通常5〜50cSt、とりわけ10〜50cStのものが好適
に使用される。 本発明の潤滑油組成物は、基本的には上述した
(A),(B)両成分よりなるものであり、その配合割合
は(A)成分30〜95重量%、好ましくは50〜90重量
%、(B)成分70〜5重量%、好ましくは50〜10重量
%とすべきである。ここで(A)成分の配合割合が少
なすぎると得られる組成物の耐高温性が充分でな
く、また多すぎると酸化安定性が低下するなどの
問題を生ずる。 本発明では、上記(A),(B)成分以外に、必要に応
じて各種の添加剤、例えばアミン系、フエノール
系、ジチオリン酸系の酸化防止剤、スルフオネー
ト系、フイネート系、ホスホネート系、サリチレ
ート系の清浄分散剤、あるいは硫黄−リン系、リ
ン酸エステル系の極圧剤、油性剤などを適宜加え
ることができる。 〔発明の効果〕 かくして得られる本発明の潤滑油組成物は、
200℃以上、特に300℃以上の高温においても蒸発
量が少なく、またスラツジの発生もない。さらに
酸化安定性にもすぐれていると共に耐荷重能も充
分である。 従つて本発明の潤滑油組成物は200℃以上の高
温になる高温機械要素、特に内燃機関用の潤滑
剤、すなわちエンジンオイルとして好適に利用し
うるものである。 次に本発明を実施例によりさらに詳しく説明す
る。 実施例1〜10および比較例1〜5 (A)成分、(B)成分として所定の化合物を配合し、
さらに各種添加剤を加えて潤滑油組成物を調製
し、これについて様々な物性評価を行なつた。結
果を第1表に示す。なおここで行なつた評価は次
の如き方法によつた。 熱安定度試験 JISK 2839の図153に規定されたビーカーに
試料30gを入れ、320℃にて3時間保持し、蒸発
減量、スラツジの有無を測定した。 インデイアナスターリング試験 JISK 2514に準拠して行なつた。 フアレツクス耐荷重能試験 ASTM D 3233に準拠して行なつた。
[Industrial Application Field] The present invention relates to a high-temperature lubricating oil composition.
The present invention relates to a high-temperature lubricating oil composition that can withstand high temperatures of 200°C or higher and is particularly effective as an engine oil. [Prior Art and Problems to be Solved by the Invention] Conventionally, various synthetic lubricating oils have been known as high-temperature lubricants. However, these are all 170℃
The upper limit is ~200℃, and at higher temperatures, there is a lot of evaporation loss, causing various problems such as no lubricant present in the lubricated parts, or sludge forming, making it impossible to lubricate, making it difficult to put it into practical use. I can't. However, recently, lubricants for adiabatic engines, bearing lubricants for ultra-high temperature gas turbines,
Lubricants for engines with turbochargers, etc.
There is a need for lubricants that can withstand high temperatures of 200°C or higher, especially 300°C or higher. The required characteristics of a lubricant that can be used under these conditions are (1) low evaporation loss at high temperatures, (2) no sludge formation at high temperatures, (3) good oxidation stability, and ( 4) Good load-bearing performance. The present inventor has overcome the drawbacks of the above conventional lubricants,
We conducted extensive research to develop a lubricant that has all the required properties for use at high temperatures. As a result, the inventors discovered that a lubricating oil composition consisting of a specific hindered ester and a synthetic oil was suitable for the purpose, and completed the present invention. [Means for Solving the Problems] That is, the present invention provides (A) an ester of a hindered alcohol and an unsaturated fatty acid having 18 carbon atoms in an amount of 30 to 95% by weight, and (B) a kinematic viscosity at 100°C of 5 to 50 cSt. and an ethylene polymer, a propylene polymer,
The present invention provides a high-temperature lubricating oil composition comprising 70 to 5% by weight of at least one synthetic oil selected from ethylene-propylene polymers and carboxylic acid ester synthetic oils. As described above, component (A) of the lubricating oil composition of the present invention is an ester of hindered alcohol and unsaturated fatty acid having 18 carbon atoms. There are various types of hindered alcohols, such as the general formula (In the formula, R 1 to R 4 are hydrogen atoms, hydroxyl groups,
It represents a hydroxyl group-containing alkyl group or an alkyl group, and at least one represents a hydroxyl group or a hydroxyl group-containing alkyl group. ) Among these, the hydroxyl group-containing alkyl group and the alkyl group preferably have 1 to 3 carbon atoms. Specifically, trimethylolpropane, trimethylolethane, pentaerythritol, neopentyl glycol, 2-methyl-2-propyl-1,3-
Suitable examples include polyhydric alcohols such as propanediol. Although not included in the above general formula, other compounds such as dipentaerythritol can also be mentioned. The acid that forms the ester (hindered ester) with the hindered alcohol must be an unsaturated fatty acid having 18 carbon atoms; other acids cannot provide a lubricating oil composition with the desired properties. Here, specific examples of unsaturated fatty acids having 18 carbon atoms include unsaturated fatty acids such as oleic acid, linoleic acid, and linolenic acid.
It goes without saying that this unsaturated fatty acid may be used in the form of its derivatives (for example, acid halides). Specific examples of hindered esters formed from the above-mentioned hindered alcohol and unsaturated fatty acid having 18 carbon atoms include trimethylolpropane triolate, pentaerythritol tetraoleate,
Examples include oleates such as dipentaerythritol hexaoleate and neopentyl glycol dioleate, and their respective linoleates and linolenates. On the other hand, component (B) of the lubricating oil composition of the present invention is a synthetic oil selected from ethylene polymer, propylene polymer, ethylene-propylene polymer, and carboxylic acid ester synthetic oil, and these may be used alone or They may be used in combination. As the ethylene polymer, propylene polymer, and ethylene-propylene polymer, those having a degree of polymerization of about 20 to 200 are used.
Examples of carboxylic acid ester-based synthetic oils include dibasic acids such as adipic acid, azelaic acid, and sebacic acid, linear or branched saturated fatty acids having 5 to 30 carbon atoms, 2-ethylhexanol, sec-butanol,
Examples include esters with 3-methylbutanol and hindered alcohols. Note that the term "ethylene polymer" as used herein is a concept that includes copolymers of ethylene and other α-olefins other than ethylene. Also, what is propylene polymer?
The concept includes copolymers of propylene and other α-olefins other than propylene. Furthermore, the term ethylene-propylene polymer is a concept that includes copolymers of ethylene and propylene and other α-olefins. As for the viscosity of the above synthetic oil, those having a kinematic viscosity at 100°C of usually 5 to 50 cSt, particularly preferably 10 to 50 cSt, are preferably used. The lubricating oil composition of the present invention is basically as described above.
It consists of both components (A) and (B), and the blending ratio is 30 to 95% by weight, preferably 50 to 90% by weight of component (A), and 70 to 5% by weight, preferably 50% by weight of component (B). It should be ~10% by weight. Here, if the blending ratio of component (A) is too small, the resulting composition will not have sufficient high temperature resistance, and if it is too large, problems such as decreased oxidation stability will occur. In the present invention, in addition to the above components (A) and (B), various additives may be added as necessary, such as amine-based, phenol-based, dithiophosphoric acid-based antioxidants, sulfonate-based, finate-based, phosphonate-based, and salicylate. A cleaning/dispersing agent, a sulfur-phosphorus type or phosphate ester type extreme pressure agent, an oily agent, etc. can be added as appropriate. [Effects of the Invention] The lubricating oil composition of the present invention thus obtained has the following properties:
Even at high temperatures of 200°C or higher, especially 300°C or higher, the amount of evaporation is small and no sludge is generated. Furthermore, it has excellent oxidation stability and sufficient load-bearing capacity. Therefore, the lubricating oil composition of the present invention can be suitably used as a lubricant for high-temperature mechanical elements that reach temperatures of 200° C. or higher, particularly internal combustion engines, that is, as an engine oil. Next, the present invention will be explained in more detail with reference to Examples. Examples 1 to 10 and Comparative Examples 1 to 5 Predetermined compounds were blended as the (A) component and (B) component,
Furthermore, various additives were added to prepare lubricating oil compositions, and various physical properties were evaluated. The results are shown in Table 1. The evaluation conducted here was based on the following method. Thermal Stability Test 30 g of the sample was placed in a beaker specified in Figure 153 of JISK 2839, held at 320°C for 3 hours, and the evaporation loss and presence or absence of sludge were measured. The Indiana Starling test was conducted in accordance with JISK 2514. Farex load-bearing capacity test was conducted in accordance with ASTM D 3233.

【表】【table】

【表】 比較例 6,7 第2表に示す組成を有する潤滑油組成物を調製
し、実施例1と同様にして熱安定度試験を行なつ
た。結果を第2表に示す。 実施例11および比較例8〜10 第3表に示す組成を有する潤滑油組成物を用い
たこと以外は実施例1と同様にして熱安定度試験
を行なつた。結果を第3表に示す。
[Table] Comparative Examples 6, 7 Lubricating oil compositions having the compositions shown in Table 2 were prepared and subjected to a thermal stability test in the same manner as in Example 1. The results are shown in Table 2. Example 11 and Comparative Examples 8 to 10 A thermal stability test was conducted in the same manner as in Example 1, except that a lubricating oil composition having the composition shown in Table 3 was used. The results are shown in Table 3.

【表】【table】

【表】【table】

【表】【table】

Claims (1)

【特許請求の範囲】 1 (A)ヒンダードアルコールと炭素数18の不飽和
脂肪酸とのエステル30〜95重量%および(B)100℃
における動粘度が5〜50cStであり、かつエチレ
ン重合体、プロピレン重合体、エチレン−プロピ
レン重合体およびカルボン酸エステル系合成油か
ら選ばれた少なくとも1種の合成油70〜5重量%
からなることを特徴とする高温用潤滑油組成物。 2 潤滑油組成物がエンジンオイル用組成物であ
る特許請求の範囲第1項記載の組成物。 3 ヒンダードアルコールが一般式 (式中、R1〜R4はそれぞれ水素原子、水酸基、
水酸基含有アルキル基あるいはアルキル基を示
し、かつ少なくとも一つは水酸基あるいは水酸基
含有アルキル基を示す。) で表わされる化合物である特許請求の範囲第1項
記載の組成物。 4 炭素数18の不飽和脂肪酸がオレイン酸、リノ
ール酸あるいはリノレン酸である特許請求の範囲
第1項記載の組成物。 5 潤滑油組成物が高温軸受油用組成物である特
許請求の範囲第1項記載の組成物。
[Scope of Claims] 1 (A) 30 to 95% by weight of ester of hindered alcohol and unsaturated fatty acid having 18 carbon atoms and (B) 100°C
70 to 5% by weight of at least one synthetic oil having a kinematic viscosity of 5 to 50 cSt and selected from ethylene polymer, propylene polymer, ethylene-propylene polymer, and carboxylic acid ester synthetic oil.
A high-temperature lubricating oil composition comprising: 2. The composition according to claim 1, wherein the lubricating oil composition is an engine oil composition. 3 Hindered alcohol is a general formula (In the formula, R 1 to R 4 are hydrogen atoms, hydroxyl groups,
It represents a hydroxyl group-containing alkyl group or an alkyl group, and at least one represents a hydroxyl group or a hydroxyl group-containing alkyl group. ) The composition according to claim 1, which is a compound represented by: 4. The composition according to claim 1, wherein the unsaturated fatty acid having 18 carbon atoms is oleic acid, linoleic acid or linolenic acid. 5. The composition according to claim 1, wherein the lubricating oil composition is a composition for high temperature bearing oil.
JP58006657A 1983-01-20 1983-01-20 High-temperature lubricating oil composition Granted JPS59133297A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP58006657A JPS59133297A (en) 1983-01-20 1983-01-20 High-temperature lubricating oil composition
GB08400045A GB2134538B (en) 1983-01-20 1984-01-03 Lubricating oils
DE3401149A DE3401149A1 (en) 1983-01-20 1984-01-14 LUBRICANT COMPOSITION, SUITABLE FOR USE AT HIGH TEMPERATURE
FR8400830A FR2539755B1 (en) 1983-01-20 1984-01-19 LUBRICATING OIL COMPOSITION FOR HIGH TEMPERATURE USE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58006657A JPS59133297A (en) 1983-01-20 1983-01-20 High-temperature lubricating oil composition

Publications (2)

Publication Number Publication Date
JPS59133297A JPS59133297A (en) 1984-07-31
JPH0153919B2 true JPH0153919B2 (en) 1989-11-16

Family

ID=11644444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58006657A Granted JPS59133297A (en) 1983-01-20 1983-01-20 High-temperature lubricating oil composition

Country Status (4)

Country Link
JP (1) JPS59133297A (en)
DE (1) DE3401149A1 (en)
FR (1) FR2539755B1 (en)
GB (1) GB2134538B (en)

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JPS61287986A (en) * 1985-06-14 1986-12-18 Kao Corp Lubricating oil composition for high-temperature use
JPH0730346B2 (en) * 1986-09-08 1995-04-05 出光興産株式会社 Lubricating oil composition
JPH0730345B2 (en) * 1986-09-08 1995-04-05 出光興産株式会社 Lubricating oil composition
US5665683A (en) * 1987-04-10 1997-09-09 Bremer & Leguil Gmbh Lubricant and lubricant concentrate
DE3712133A1 (en) * 1987-04-10 1988-10-20 Siwa Gmbh LUBRICANTS OR LUBRICANT CONCENTRATE
DE3712132A1 (en) * 1987-04-10 1988-10-20 Grill Max Gmbh LUBRICANTS OR LUBRICANT CONCENTRATE
DK653488D0 (en) * 1988-11-23 1988-11-23 Esti Kemi Aps based lubricant
JPH05311188A (en) * 1992-05-08 1993-11-22 Toyota Motor Corp Aluminum plate excellent in forming processability
EP0694603B1 (en) * 1994-06-24 2005-03-23 Crompton Corporation Lubricating oil having lubrication condition responsive activity
US5783528A (en) * 1997-01-07 1998-07-21 Diversey Lever, Inc. Synthetic lubricant based on enhanced performance of synthetic ester fluids
EP1148350A1 (en) * 2000-04-18 2001-10-24 ATOFINA Research Ballast fluid for seismic streamers
DE10115829A1 (en) * 2001-03-29 2002-10-10 Cognis Deutschland Gmbh New synthetic esters used as base fluids in hydraulic oils, of polyols and 16-18C unsaturated fatty acids with defined iodine, saponification and acid numbers useful as base fluids in hydraulic oils
US6806237B2 (en) 2001-09-27 2004-10-19 Chevron U.S.A. Inc. Lube base oils with improved stability
US20050070449A1 (en) * 2003-09-30 2005-03-31 Roby Stephen H. Engine oil compositions
FR2939443B1 (en) * 2008-12-05 2013-01-18 Total Raffinage Marketing LUBRICATING OIL BASED ON POLYOL ESTERS

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JPS5243983A (en) * 1975-10-03 1977-04-06 Hitachi Ltd Water cooled electric conductor
JPS5584396A (en) * 1978-12-20 1980-06-25 Tech Res & Dev Inst Of Japan Def Agency Lubricating oil for diesel engine
JPS5968397A (en) * 1982-10-13 1984-04-18 Cosmo Co Ltd Gear oil composition

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JPS5584396A (en) * 1978-12-20 1980-06-25 Tech Res & Dev Inst Of Japan Def Agency Lubricating oil for diesel engine
JPS5968397A (en) * 1982-10-13 1984-04-18 Cosmo Co Ltd Gear oil composition

Also Published As

Publication number Publication date
DE3401149C2 (en) 1990-12-13
GB2134538B (en) 1986-03-12
DE3401149A1 (en) 1984-07-26
FR2539755B1 (en) 1987-06-26
JPS59133297A (en) 1984-07-31
GB8400045D0 (en) 1984-02-08
GB2134538A (en) 1984-08-15
FR2539755A1 (en) 1984-07-27

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