JP2010163558A - Lubricating oil composition - Google Patents
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本発明は、高温環境下で使用される潤滑油組成物に関するものである。 The present invention relates to a lubricating oil composition used in a high temperature environment.
高温環境下で使用される潤滑油組成物は、使用される間に基油の酸化劣化や蒸発が進行し、初期の潤滑性能が徐々に低下していくため、定期的に潤滑油を入れ替えたり、補充することが求められる。
潤滑油組成物の酸化劣化への対策としては、耐熱性の高い基油の使用や、基油に各種酸化防止剤を添加することで、潤滑油組成物の酸化劣化を抑制し、潤滑油組成物の寿命を延長させることが常套手段となっている（例えば特許文献１及び２）。
一方、添加剤で潤滑油組成物の基油の蒸発を抑制することは理論上難しく、現実には分子量の高い基油への変更で対応してきた。しかし、この手法では、潤滑油組成物の流動点や、粘度が高くなり、低温時の起動性が悪化したり、潤滑油の攪拌抵抗等による機械部品の運転トルクの上昇などの問題があった。
Lubricating oil compositions used in high-temperature environments undergo oxidative deterioration and evaporation of the base oil during use, and the initial lubricating performance gradually decreases. , Is required to replenish.
As countermeasures against oxidative deterioration of the lubricating oil composition, the use of a base oil with high heat resistance and the addition of various antioxidants to the base oil suppress the oxidative deterioration of the lubricating oil composition, and the lubricating oil composition Extending the lifespan of objects has become a common practice (for example, Patent Documents 1 and 2).
On the other hand, it is theoretically difficult to suppress evaporation of the base oil of the lubricating oil composition with an additive, and in reality, this has been dealt with by changing to a base oil having a high molecular weight. However, this method has problems such as the pour point and viscosity of the lubricating oil composition becoming high, the startability at low temperatures deteriorates, and the operating torque of machine parts increases due to the stirring resistance of the lubricating oil. .
本発明の目的は、潤滑油組成物中の基油の蒸発を、特定の添加剤を使用することにより低減ないし抑制することである。 An object of the present invention is to reduce or suppress the evaporation of the base oil in the lubricating oil composition by using a specific additive.
本発明者は、潤滑油組成物中の基油の蒸発を、特定の添加剤（フッ素系界面活性剤）を使用することにより低減ないし抑制できることを見出し、本発明を完成するに至った。
本発明は以下に示す潤滑油組成物を提供するものである。
１．高温環境下で使用される潤滑油組成物であって、フッ素系界面活性剤を含有することを特徴とする潤滑油組成物。
２．フッ素系界面活性剤が、
パーフルオロ脂肪族炭化水素基含有エチレン性不飽和単量体（Ａ）と、
ポリオキシアルキレン単位含有エチレン性不飽和単量体（Ｂ）、及び／又は（Ｂ）以外の非フッ素系アルキル基含有エチレン性不飽和単量体（Ｃ）と
を重合して得られるフッ素系共重合体からなることを特徴とする上記１記載の潤滑油組成物。
３．フッ素系界面活性剤の含有量が、該潤滑油組成物の０．００５〜１０質量％であることを特徴とする上記１または２記載の潤滑油組成物。
The present inventor has found that the evaporation of the base oil in the lubricating oil composition can be reduced or suppressed by using a specific additive (fluorine surfactant), and has completed the present invention.
The present invention provides the following lubricating oil composition.
1. A lubricating oil composition for use in a high temperature environment, comprising a fluorosurfactant.
2. Fluorosurfactant
A perfluoroaliphatic hydrocarbon group-containing ethylenically unsaturated monomer (A);
Fluorine copolymer obtained by polymerizing polyoxyalkylene unit-containing ethylenically unsaturated monomer (B) and / or non-fluorinated alkyl group-containing ethylenically unsaturated monomer (C) other than (B) 2. The lubricating oil composition as described in 1 above, which comprises a polymer.
3. 3. The lubricating oil composition as described in 1 or 2 above, wherein the content of the fluorosurfactant is 0.005 to 10% by mass of the lubricating oil composition.
本発明は、潤滑油組成物に特定の添加剤を添加することにより、高温環境下で使用される潤滑油組成物の基油の蒸発を効果的に抑制するという効果を奏するものである。 The present invention has an effect of effectively suppressing evaporation of a base oil of a lubricating oil composition used in a high temperature environment by adding a specific additive to the lubricating oil composition.
本発明の潤滑油組成物に使用する基油は特に限定されず、基本的には全ての基油が使用可能である。基油は、単独でもあるいは組み合わせて使用することもできる。基油としては、大別して鉱物油、合成油がある。合成油の例としてはジエステル油、ポリオールエステルに代表されるエステル系合成油、ポリαオレフィンに代表される合成炭化水素油、アルキルジフェニルエーテルに代表されるエーテル系合成油、ポリプロピレングリコールに代表されるポリグリコール系合成油、シリコーン系合成油、フッ素系合成油などが挙げられる。
本発明の高温環境下で使用される潤滑油組成物の基油として特に好ましいものは、耐熱性に優れ、かつ経済性の観点から合成油、例えば、エステル系合成油、エーテル系合成油、合成炭化水素油である。
この明細書において高温環境とは、好ましくは１５０℃以上、さらに好ましくは１８０℃以上、特に１８０℃〜２００℃の温度環境を意味する。
The base oil used in the lubricating oil composition of the present invention is not particularly limited, and basically all base oils can be used. Base oils can be used alone or in combination. Base oils are roughly classified into mineral oils and synthetic oils. Examples of synthetic oils include diester oils, ester-based synthetic oils typified by polyol esters, synthetic hydrocarbon oils typified by poly-α-olefins, ether-based synthetic oils typified by alkyl diphenyl ethers, and poly- propyls typified by polypropylene glycol. Examples include glycol-based synthetic oils, silicone-based synthetic oils, and fluorine-based synthetic oils.
Particularly preferred as the base oil of the lubricating oil composition used in the high temperature environment of the present invention is a synthetic oil from the viewpoint of excellent heat resistance and economy, for example, an ester synthetic oil, an ether synthetic oil, a synthetic oil. It is a hydrocarbon oil.
In this specification, the high temperature environment means a temperature environment of preferably 150 ° C. or higher, more preferably 180 ° C. or higher, particularly 180 ° C. to 200 ° C.
本発明の潤滑油組成物に使用されるフッ素系界面活性剤としては、種々のものが挙げられる。
特に好ましいフッ素系界面活性剤は、パーフルオロ脂肪族炭化水素基含有エチレン性不飽和単量体（Ａ）と、ポリオキシアルキレン単位含有エチレン性不飽和単量体（Ｂ）、及び／又は（Ｂ）以外の非フッ素系アルキル含有エチレン性不飽和単量体（Ｃ）とを重合して得られるフッ素系共重合体であり、より好ましいフッ素系界面活性剤は、パーフルオロ脂肪族炭化水素基含有エチレン性不飽和単量体（Ａ）と、ポリオキシアルキレン単位含有エチレン性不飽和単量体（Ｂ）を重合して得られるフッ素系共重合体である。
Various things are mentioned as a fluorine-type surfactant used for the lubricating oil composition of this invention.
Particularly preferred fluorosurfactants are perfluoroaliphatic hydrocarbon group-containing ethylenically unsaturated monomer (A), polyoxyalkylene unit-containing ethylenically unsaturated monomer (B), and / or (B ) Is a fluorine-based copolymer obtained by polymerizing a non-fluorine-based alkyl-containing ethylenically unsaturated monomer (C) other than), and a more preferable fluorine-based surfactant contains a perfluoroaliphatic hydrocarbon group. It is a fluorine copolymer obtained by polymerizing an ethylenically unsaturated monomer (A) and a polyoxyalkylene unit-containing ethylenically unsaturated monomer (B).
パーフルオロ脂肪族炭化水素基含有エチレン性不飽和単量体（Ａ）としては、例えば、フッ素化脂肪族炭化水素基を有するアクリレート、メタアクリレート、ビニルエステル、ビニルエーテル、マレート、フマレート、α-オレフィンなどが挙げられる。パーフルオロ脂肪族炭化水素基としては、炭素原子数が１〜３０のパーフルオロアルキル基又はパーフルオロアルケニル基が挙げられ、直鎖状、分岐状、環状又はこれらの組み合わせたもののいずれでも良い。更に、フッ素化脂肪族炭化水素基は、その主鎖中に酸素原子又は窒素原子の介入したものであっても構わない。 Examples of the perfluoroaliphatic hydrocarbon group-containing ethylenically unsaturated monomer (A) include acrylates, methacrylates, vinyl esters, vinyl ethers, malates, fumarate, α-olefins having fluorinated aliphatic hydrocarbon groups. Is mentioned. Examples of the perfluoroaliphatic hydrocarbon group include a perfluoroalkyl group or a perfluoroalkenyl group having 1 to 30 carbon atoms, which may be linear, branched, cyclic, or a combination thereof. Furthermore, the fluorinated aliphatic hydrocarbon group may be an oxygen atom or nitrogen atom intervening in the main chain.
ポリオキシアルキレン単位含有エチレン性不飽和単量体（Ｂ）とは、ポリオキシアルキレン単位（非イオン性基）の両末端又は片末端にエチレン性不飽和二重結合を有する単量体である。オキシアルキレン単位としては、例えば、オキシエチレン単位、オキシプロピレン単位、オキシブチレン単位、これらの２種又は３種の単位を混合したものが例示される。
好ましいものは、ポリオキシプロピレン単位の両末端又は片末端にエチレン性不飽和二重結合を有する単量体である。オキシアルキレン基の繰り返し単位数は、好ましくは２〜１００、更に好ましくは３〜５０である。オキシプロピレン基の場合の繰返し単位数は、好ましくは２〜３０、更に好ましくは３〜１０である。
The polyoxyalkylene unit-containing ethylenically unsaturated monomer (B) is a monomer having an ethylenically unsaturated double bond at both ends or one end of the polyoxyalkylene unit (nonionic group). Examples of the oxyalkylene unit include an oxyethylene unit, an oxypropylene unit, an oxybutylene unit, and a mixture of these two or three types.
Preferred is a monomer having an ethylenically unsaturated double bond at both ends or one end of the polyoxypropylene unit. The number of repeating units of the oxyalkylene group is preferably 2 to 100, more preferably 3 to 50. In the case of an oxypropylene group, the number of repeating units is preferably 2 to 30, more preferably 3 to 10.
（Ｂ）以外の非フッ素系アルキル基含有エチレン性不飽和単量体（Ｃ）とは、非フッ素系アルキル基とエチレン性不飽和二重結合を有する単量体であり、そのアルキル基は炭素原子数１〜３０の、直鎖状、分岐状、環状又はこれらの組み合わせたいずれの構造であっても良い。このような単量体としては、アルキルアクリレート、アルキルメタアクリレート、ヒドロキシル基含有アクリレート、ヒドロキシル基含有メタアクリレート、ポリジメチルシロキシル基含有アクリレート、ポリジメチルシロキシル基含有メタアクリレート、分子中にブリッジヘッドを含有するエチレン性不飽和単量体などが挙げられる。
分子中にブリッジヘッドを含有するエチレン性不飽和単量体の例としては、ジシクロペンタニルオキシエチルアクリレート、又はそのメタアクリレート、イソボルニルオキシエチルアクリレート、又はそのメタアクリレート、イソボルニルアクリレート、又はそのメタアクリレート、アダマンチルアクリレート、又はそのメタアクリレート、ジメチルアダマンチルアクリレート、又はそのメタアクリレート、ジシクロペンタニルアクリレート、又はそのメタアクリレートなどが挙げられる。
The non-fluorinated alkyl group-containing ethylenically unsaturated monomer (C) other than (B) is a monomer having a non-fluorinated alkyl group and an ethylenically unsaturated double bond, and the alkyl group is carbon. Any structure having 1 to 30 atoms, linear, branched, cyclic, or a combination thereof may be used. Examples of such monomers include alkyl acrylates, alkyl methacrylates, hydroxyl group-containing acrylates, hydroxyl group-containing methacrylates, polydimethylsiloxyl group-containing acrylates, polydimethylsiloxyl group-containing methacrylates, and bridge heads in the molecule. Examples thereof include ethylenically unsaturated monomers.
Examples of the ethylenically unsaturated monomer containing a bridge head in the molecule include dicyclopentanyloxyethyl acrylate, or a methacrylate thereof, isobornyloxyethyl acrylate, or a methacrylate thereof, isobornyl acrylate, Or a methacrylate thereof, an adamantyl acrylate, or a methacrylate thereof, dimethyladamantyl acrylate, or a methacrylate thereof, dicyclopentanyl acrylate, or a methacrylate thereof.
パーフルオロ脂肪族炭化水素基含有エチレン性不飽和単量体（Ａ）とポリオキシアルキレン単位含有エチレン性不飽和単量体（Ｂ）の共重合割合は特に制限されないが、不飽和単量体（Ａ）１００質量部当たりの不飽和単量体（Ｂ）の割合は、好ましくは１〜５００質量部、さらに好ましくは５〜３００質量部である。
ポリオキシプロピレン基単位含有エチレン性不飽和単量体の場合は、不飽和単量体（Ａ）１００質量部当たりのポリオキシプロピレン基単位含有エチレン性不飽和単量体の割合は、好ましくは１〜２００質量部、さらに好ましくは５〜１００質量部である。
非フッ素系アルキル含有エチレン性不飽和単量体（Ｃ）の共重合割合も特に制限されないが、不飽和単量体（Ａ）１００質量部に対して、好ましくは１〜１００質量部、さらに好ましくは１〜３０質量部である。なお、不飽和単量体（Ｂ）と不飽和単量体（Ｃ）の使用割合は任意に選択することができる。不飽和単量体（Ａ）と、不飽和単量体（Ｂ）及び／又は不飽和単量体（Ｃ）とを重合して得られるフッ素系共重合体の重量平均分子量は、ゲルパーミエーションクロマトグラフ（ＧＰＣ）によるポリスチレン換算で、好ましくは１，０００以上、さらに好ましくは１，０００〜１，０００，０００であり、他種成分との相溶性を考慮した場合、１，０００〜３０，０００が特に好ましい。
The copolymerization ratio of the perfluoroaliphatic hydrocarbon group-containing ethylenically unsaturated monomer (A) and the polyoxyalkylene unit-containing ethylenically unsaturated monomer (B) is not particularly limited, but the unsaturated monomer ( A) The ratio of the unsaturated monomer (B) per 100 parts by mass is preferably 1 to 500 parts by mass, more preferably 5 to 300 parts by mass.
In the case of a polyoxypropylene group-containing ethylenically unsaturated monomer, the ratio of the polyoxypropylene group unit-containing ethylenically unsaturated monomer per 100 parts by mass of the unsaturated monomer (A) is preferably 1 -200 mass parts, More preferably, it is 5-100 mass parts.
The copolymerization ratio of the non-fluorinated alkyl-containing ethylenically unsaturated monomer (C) is not particularly limited, but is preferably 1 to 100 parts by mass, more preferably 100 parts by mass of the unsaturated monomer (A). Is 1-30 parts by mass. In addition, the usage-amount of an unsaturated monomer (B) and an unsaturated monomer (C) can be selected arbitrarily. The weight average molecular weight of the fluorocopolymer obtained by polymerizing the unsaturated monomer (A), the unsaturated monomer (B) and / or the unsaturated monomer (C) is gel permeation. In terms of polystyrene by chromatograph (GPC), it is preferably 1,000 or more, more preferably 1,000 to 1,000,000, and 1,000 to 30, in consideration of compatibility with other components. 000 is particularly preferred.
本発明の潤滑油組成物に使用することができるフッ素系界面活性剤は市販されているものでもよく、市販品の例としては、 メガファックF-172D（DIC株式会社製）、メガファックF-480SF（DIC株式会社製）、メガファックF-489（DIC株式会社製）、メガファックF-178RM（DIC株式会社製）、ユニダインDS451（ダイキン工業株式会社製）等が挙げられる。
本発明の潤滑油組成物全体に対するフッ素系界面活性剤の添加量は、好ましくは０．００５〜１０質量％、さらに好ましくは０．０１〜５質量％、最も好ましくは０．０１〜２質量％である。添加量が０．００５質量％未満では期待する効果が得られにくく、１０質量％を超えると効果が飽和し、不経済である。
The fluorosurfactant that can be used in the lubricating oil composition of the present invention may be commercially available. Examples of commercially available products include MegaFuck F-172D (manufactured by DIC Corporation), MegaFuck F- 480SF (manufactured by DIC Corporation), MegaFuck F-489 (manufactured by DIC Corporation), Megafuck F-178RM (manufactured by DIC Corporation), Unidyne DS451 (manufactured by Daikin Industries, Ltd.) and the like.
The amount of the fluorosurfactant added to the entire lubricating oil composition of the present invention is preferably 0.005 to 10% by mass, more preferably 0.01 to 5% by mass, and most preferably 0.01 to 2% by mass. It is. If the addition amount is less than 0.005% by mass, the expected effect is difficult to obtain, and if it exceeds 10% by mass, the effect is saturated and uneconomical.
本発明の潤滑油組成物には、上記フッ素系界面活性剤以外に、必要に応じて全ての添加剤が併用可能である。例えば、酸化防止剤、錆止め剤、金属腐食防止剤、油性剤、耐摩耗剤、極圧剤、固体潤滑剤、耐はく離添加剤、あるいはこれらの２種以上の組み合わせが挙げられる。 In the lubricating oil composition of the present invention, all additives can be used in combination with the fluorine-based surfactant as necessary. For example, an antioxidant, a rust inhibitor, a metal corrosion inhibitor, an oily agent, an antiwear agent, an extreme pressure agent, a solid lubricant, an anti-peeling additive, or a combination of two or more of these.
本発明の潤滑油組成物は、増ちょう剤を添加し、グリース組成物とすることも可能である。
増ちょう剤としては全ての増ちょう剤が使用可能である。例えば、ＬｉやＮａ等を含む金属石けん類、ベントン、シリカゲル、ウレア化合物、ポリテトラフルオロエチレンに代表されるフッ素系増ちょう剤等の非石けん類などが挙げられる。特に好ましくは、Ｌｉ石けんやウレア化合物である。これらは欠点が少なく、かつ高価でないため、実用性のある増ちょう剤である。グリース組成物として使用する場合の増ちょう剤の添加量はグリース組成物全体に対して通常は３〜３０質量％程度である。
The lubricating oil composition of the present invention can be made into a grease composition by adding a thickener.
All the thickeners can be used as the thickener. Examples thereof include metal soaps containing Li and Na, non-soaps such as benton, silica gel, urea compounds, and fluorine-based thickeners typified by polytetrafluoroethylene. Particularly preferred are Li soaps and urea compounds. These are practical thickeners because they have few drawbacks and are not expensive. The amount of thickener added when used as a grease composition is usually about 3 to 30% by mass with respect to the entire grease composition.
本発明の潤滑油組成物において、フッ素系界面活性剤が潤滑油中の油分の蒸発を低減ないし抑制するメカニズムとしては、基油表面にフッ素系界面活性剤が膜を形成し、この膜が大気中への基油の蒸発を低減ないし抑制しているものと推定される。 In the lubricating oil composition of the present invention, as a mechanism by which the fluorosurfactant reduces or suppresses evaporation of the oil content in the lubricating oil, the fluorosurfactant forms a film on the surface of the base oil, and this film is the atmosphere. It is estimated that the evaporation of the base oil into the inside is reduced or suppressed.
次に実施例により本発明をさらに具体的に説明する。
＜実施例＞
以下に示す成分を適宜混合して表１及び表２に示す潤滑油組成物を調製し、以下に示す試験方法により熱酸化安定性を評価した。結果を表１及び表２に示す。各成分の量は潤滑油組成物全体に対する質量％である。
基油
フェニルエーテル油：40℃の動粘度 103 mm2/s（アルキルジフェニルエーテル油）
エステル油：40℃の動粘度 76.9 mm2/s（ジペンタエリスリトールエステル油）
合成炭化水素油：40℃の動粘度 68 mm2/s（ポリα−オレフィン）
鉱物油：40℃の動粘度 98.9 mm2/s
添加剤
添加剤Ａ：フッ素系ノニオン界面活性剤 パーフルオロアルキル基・親油性基含有オリゴマー（DIC株式会社製 メガファックF-172D）
添加剤Ｂ：非フッ素系界面活性剤 ソルビタントリオレート
添加剤Ｃ：非フッ素系界面活性剤 ジノニルナフタレンスルホン酸バリウム
添加剤Ｄ：アミン系酸化防止剤 アルキルジフェニルアミン
Next, the present invention will be described more specifically with reference to examples.
<Example>
The following components were appropriately mixed to prepare the lubricating oil compositions shown in Tables 1 and 2, and the thermal oxidation stability was evaluated by the test methods shown below. The results are shown in Tables 1 and 2. The amount of each component is mass% with respect to the entire lubricating oil composition.
Base oil Phenyl ether oil: Kinematic viscosity at 40 ° C 103 mm 2 / s (alkyl diphenyl ether oil)
Ester oil: Kinematic viscosity at 40 ° C 76.9 mm 2 / s (dipentaerythritol ester oil)
Synthetic hydrocarbon oil: Kinematic viscosity at 40 ° C 68 mm 2 / s (poly α-olefin)
Mineral oil: Kinematic viscosity at 40 ℃ 98.9 mm 2 / s
Additives Additive A: Fluorine nonionic surfactant Perfluoroalkyl group / lipophilic group-containing oligomer (Megafac F-172D manufactured by DIC Corporation)
Additive B: Non-fluorinated surfactant sorbitan trioleate Additive C: Non-fluorinated surfactant Barium dinonylnaphthalenesulfonate Additive D: Amine-based antioxidant alkyldiphenylamine
＜試験方法＞
熱酸化安定性試験
高温下での基油の耐蒸発性を評価する試験。
試験手順：１００ｍｌガラスビーカーに、試験油５０ｇを精秤し、これを１８０℃の空気循環型恒温槽に５００時間静置後、蒸発減量（質量％）を算出する。「基油の蒸発減量」から「基油に添加剤を添加したものの蒸発減量」を差し引いたものを蒸発抑制量とする。
評価
蒸発抑制量＝（基油の蒸発減量）−（基油に添加剤を添加したものの蒸発減量）
５質量％以上：合格（○）
５質量％未満：不合格（×）
<Test method>
Thermal oxidation stability test This test evaluates the evaporation resistance of base oils at high temperatures.
Test procedure: 50 g of test oil is precisely weighed in a 100 ml glass beaker, and this is allowed to stand in a 180 ° C. air circulating thermostat for 500 hours, and then the evaporation loss (% by mass) is calculated. The amount obtained by subtracting the “evaporation loss of the base oil added with the additive” from the “base oil evaporation loss” is defined as the evaporation suppression amount.
Evaluation Evaporation suppression amount = (Base oil evaporation loss)-(Evaporation loss of base oil with additives)
5% by mass or more: Pass (○)
Less than 5% by mass: rejected (×)
添加剤Ａ（フッ素系界面活性剤）を添加した本発明の実施例１〜６の潤滑油組成物はいずれも蒸発抑制量が５質量％以上であり、フッ素系界面活性剤を添加していない同種基油の比較例１〜４に対して明らかに蒸発抑制効果が認められた。
また添加剤Ｂ（非フッ素系界面活性剤）、添加剤Ｃ（非フッ素系界面活性剤）又は添加剤Ｄ（アミン系酸化防止剤）を添加した比較例５〜７の潤滑油組成物はいずれも蒸発抑制量が５質量％未満であり、他種の界面活性剤や既存の酸化防止剤では蒸発抑制効果は認められないことがわかる。
以上の結果より、潤滑油組成物中の油分（基油）の蒸発を特定の添加剤（フッ素系界面活性剤）を添加することにより低減ないし抑制できることがわかる。
The lubricating oil compositions of Examples 1 to 6 of the present invention to which additive A (fluorinated surfactant) was added all had an evaporation suppression amount of 5% by mass or more, and no fluorinated surfactant was added. Evaporation suppression effect was clearly recognized with respect to Comparative Examples 1 to 4 of the same base oil.
In addition, any of the lubricating oil compositions of Comparative Examples 5 to 7 to which additive B (non-fluorinated surfactant), additive C (non-fluorinated surfactant) or additive D (amine antioxidant) was added In addition, the evaporation suppression amount is less than 5% by mass, and it is understood that the evaporation suppression effect is not recognized with other types of surfactants and existing antioxidants.
From the above results, it can be seen that the evaporation of the oil (base oil) in the lubricating oil composition can be reduced or suppressed by adding a specific additive (fluorinated surfactant).
Claims (3)
パーフルオロ脂肪族炭化水素基含有エチレン性不飽和単量体（Ａ）と、
ポリオキシアルキレン単位含有エチレン性不飽和単量体（Ｂ）、及び／又は（Ｂ）以外の非フッ素系アルキル基含有エチレン性不飽和単量体（Ｃ）と
を重合して得られるフッ素系共重合体からなることを特徴とする請求項１記載の潤滑油組成物。 Fluorosurfactant
A perfluoroaliphatic hydrocarbon group-containing ethylenically unsaturated monomer (A);
Fluorine copolymer obtained by polymerizing polyoxyalkylene unit-containing ethylenically unsaturated monomer (B) and / or non-fluorinated alkyl group-containing ethylenically unsaturated monomer (C) other than (B) 2. The lubricating oil composition according to claim 1, comprising a polymer.
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| JP2009007831A JP2010163558A (en) | 2009-01-16 | 2009-01-16 | Lubricating oil composition |
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| JP2009007831A JP2010163558A (en) | 2009-01-16 | 2009-01-16 | Lubricating oil composition |
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| JP2013227380A (en) * | 2012-04-24 | 2013-11-07 | Cci Corp | Hydraulic fluid |
| JP2017132887A (en) * | 2016-01-27 | 2017-08-03 | 株式会社ニッペコ | Debris removal lubricant composition, member coated with debris removal lubricant composition and method of using debris removal lubricant composition |
| WO2017131059A1 (en) * | 2016-01-27 | 2017-08-03 | 株式会社ニッペコ | Foreign substance removing lubricating composition, member coated with foreign substance removing lubricating composition, and use of foreign substance removing lubricating composition |
| JP2018065962A (en) * | 2016-10-21 | 2018-04-26 | 株式会社ニッペコ | Surface treatment agent for lubricant, foreign matter removing lubricant composition, method for manufacturing foreign matter removing lubricant composition, application member for foreign matter removing lubricant composition, and use of method of foreign matter removing lubricant composition |
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| JPH05320682A (en) * | 1992-05-20 | 1993-12-03 | N O K Kluber Kk | Lubricating oil |
| JPH1112587A (en) * | 1997-06-26 | 1999-01-19 | Nippon Kouyu:Kk | Lubricant |
| JP2007254560A (en) * | 2006-03-22 | 2007-10-04 | Fujifilm Corp | Inkjet recording ink set and inkjet recording method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013227380A (en) * | 2012-04-24 | 2013-11-07 | Cci Corp | Hydraulic fluid |
| JP2017132887A (en) * | 2016-01-27 | 2017-08-03 | 株式会社ニッペコ | Debris removal lubricant composition, member coated with debris removal lubricant composition and method of using debris removal lubricant composition |
| WO2017131059A1 (en) * | 2016-01-27 | 2017-08-03 | 株式会社ニッペコ | Foreign substance removing lubricating composition, member coated with foreign substance removing lubricating composition, and use of foreign substance removing lubricating composition |
| US10822568B2 (en) | 2016-01-27 | 2020-11-03 | Nippeco Ltd. | Foreign substance removing lubricant composition, foreign substance removing lubricant composition applied member, and method for using foreign substance removing lubricant composition |
| JP2018065962A (en) * | 2016-10-21 | 2018-04-26 | 株式会社ニッペコ | Surface treatment agent for lubricant, foreign matter removing lubricant composition, method for manufacturing foreign matter removing lubricant composition, application member for foreign matter removing lubricant composition, and use of method of foreign matter removing lubricant composition |
| WO2018074599A1 (en) * | 2016-10-21 | 2018-04-26 | 株式会社ニッペコ | Lubricant surface treatment agent, foreign substance-removing lubricant composition, method for producing foreign substance-removing lubricant composition, coating member for foreign substance-removing lubricant composition, and method for using foreign substance-removing lubricant composition |
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