JP4946868B2 - 潤滑油組成物 - Google Patents
潤滑油組成物 Download PDFInfo
- Publication number
- JP4946868B2 JP4946868B2 JP2007547068A JP2007547068A JP4946868B2 JP 4946868 B2 JP4946868 B2 JP 4946868B2 JP 2007547068 A JP2007547068 A JP 2007547068A JP 2007547068 A JP2007547068 A JP 2007547068A JP 4946868 B2 JP4946868 B2 JP 4946868B2
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- JP
- Japan
- Prior art keywords
- resin
- oil
- lubricating oil
- ester
- bearing
- 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.)
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- 239000010687 lubricating oil Substances 0.000 title claims 8
- 239000011347 resin Substances 0.000 claims 7
- 229920005989 resin Polymers 0.000 claims 7
- 239000002199 base oil Substances 0.000 claims 3
- 150000002148 esters Chemical class 0.000 claims 3
- -1 phosphate ester Chemical class 0.000 claims 3
- 229910019142 PO4 Inorganic materials 0.000 claims 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 125000004185 ester group Chemical group 0.000 claims 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 2
- 239000010452 phosphate Substances 0.000 claims 2
- 229920005668 polycarbonate resin Polymers 0.000 claims 2
- 239000004431 polycarbonate resin Substances 0.000 claims 2
- 239000004925 Acrylic resin Substances 0.000 claims 1
- 229920000178 Acrylic resin Polymers 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 125000003342 alkenyl group Chemical group 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 125000003118 aryl group Chemical group 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 235000014113 dietary fatty acids Nutrition 0.000 claims 1
- 229930195729 fatty acid Natural products 0.000 claims 1
- 239000000194 fatty acid Substances 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 229920006122 polyamide resin Polymers 0.000 claims 1
- 229920001225 polyester resin Polymers 0.000 claims 1
- 239000004645 polyester resin Substances 0.000 claims 1
- 229920001721 polyimide Polymers 0.000 claims 1
- 239000009719 polyimide resin Substances 0.000 claims 1
- 229920005749 polyurethane resin Polymers 0.000 claims 1
- 150000005846 sugar alcohols Polymers 0.000 claims 1
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 claims 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions used as base material
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/003—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/2805—Esters used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
- C10M2207/2825—Esters of (cyclo)aliphatic oolycarboxylic acids used as base material
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/041—Triaryl phosphates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/36—Seal compatibility, e.g. with rubber
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
- C10N2030/42—Phosphor free or low phosphor content compositions
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
- C10N2030/43—Sulfur free or low sulfur content compositions
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/14—Composite materials or sliding materials in which lubricants are integrally molded
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Sliding-Contact Bearings (AREA)
Description
(R1R2C6H3O)nP(O)(OR3)3-n
R1,R2:水素原子、C1〜C30の直鎖状または分岐状のアルキル基またはアルケニル基
R3:R1,R2と同じまたはC6〜C30のアリール基、炭素数C7〜C30のアラルキル基
n:1または2
これらの芳香族系のリン酸エステルは、熱安定性が良く、また摩擦面を腐食させたり、スラッジを生成しにくいといった作用を有する。
以上の各成分(重量%)を攪拌、混合して潤滑油組成物(40℃動粘度 約40〜100mm2/秒)を調製し、軸受腐食試験、樹脂応力試験、耐摩耗性試験、摩擦係数測定および軸受回転試験を行った。
(動粘度)
ASTM D445に対応するJIS K2283に準拠して、40℃および-40℃で測定
(軸受腐食試験)
ガラス管に各潤滑油および銅系軸受または鉄銅系軸受を入れ、120℃、500時間
後の軸受の変色、腐食およびスラッジの発生の有無のそれぞれを目視で確認
(樹脂応力試験)
100mm×25mm×2mmのアクリロニトリル・ブタジエン・スチレン共重合体〔ABS〕、ポ
リカーボネート〔PC〕およびポリオキシメチレン〔POM;参考例〕の各樹脂材製の試
験片に、樹脂試験片100mmに対して試験片中央部が10mm高くなるように応力を
かけ、その試験片中央部に各潤滑油組成物を塗布し、70℃、70時間後の外観を
変色、割れおよびクラックの発生の有無を目視ですべての樹脂について確認(な
しはすべての項目についてなしであり、クラックはクラックの発生のみが認められた
場合である)
(耐摩耗性試験)
シェル四球試験機を使用し、下記条件下で試験した後の下部試験鋼球3個の摩
耗痕径(単位mm)を測定
試験片:SUJ2(1/2インチ)、20等級
回転数:1,200rpm
荷重:40Kgf(3.98MPa)
温度:室温
試験時間:60分間
(摩擦係数測定)
曽田式振り子型摩擦試験機を使用し、下記条件下で摩擦係数を測定
ボール:SUJ2(3/16インチ)
ローラピン:SUJ2
温度:室温
荷重:左右−80g、中央−40g
(軸受回転試験)
モーターと軸受用ハウジング、シャフトを備えた回転試験機において、下記条件
下において回転試験を行い、摺動試験後の軸受材表面状態を目視で観察
回転数:2,000rpm
荷重:3Kgf(0.294MPa)
温度:85℃
試験時間:100時間
軸受:鉄銅系焼結含油軸受
シャフト材:SUJ2
Claims (6)
- ABS樹脂製、ポリカーボネート樹脂製、アクリル樹脂製、ポリアミド樹脂製、ポリエステル樹脂製、ポリイミド樹脂製またはポリウレタン樹脂製の樹脂部材を併用する含油軸受に用いられ、合成炭化水素油を主成分とする基油にエステル系基油を組成物全量の3〜10重量%含有せしめ、さらに摩耗防止剤である少なくとも一個のフェニルエステル基を有するリン酸エステルおよび油性剤である多価アルコール脂肪酸エステルを含有せしめ、ジアルキルジチオリン酸亜鉛およびジアルキルジチオカルバミン酸モリブデンを含有しない潤滑油組成物。
- 樹脂部材が、ABS樹脂製、ポリカーボネート樹脂製の部材である請求項1記載の潤滑油組成物。
- 樹脂部材を併用する含油軸受が、樹脂部材と近接して用いられる含油軸受または軸受を構成する部材の一部が金属から樹脂に置き換えられた含油軸受である請求項1記載の潤滑油組成物。
- 樹脂部材と近接して用いられる含油軸受が、軸受から洩れ出た潤滑油が滲み、拡散または飛散して到達し得る距離範囲内の任意の位置にある樹脂部材を用いた含油軸受である請求項3記載の潤滑油組成物。
- エステル系基油が二塩基酸エステルである請求項1記載の潤滑油組成物。
- 摩耗防止剤が、一般式
(R 1 R 2 C 6 H 3 O) n P(O)(OR 3 ) 3-n
(ここで、R 1 ,R 2 は水素原子、C 1 〜C 30 の直鎖状または分岐状のアルキル基またはアルケニル基であり、R 3 はR 1 ,R 2 と同じまたはC 6 〜C 30 のアリール基、炭素数C 7 〜C 30 のアラルキル基であり、nは1または2である)で示される少なくとも一個のフェニルエステル基を有するリン酸エステルである請求項1記載の潤滑油組成物。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007547068A JP4946868B2 (ja) | 2006-05-16 | 2007-04-18 | 潤滑油組成物 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006136336 | 2006-05-16 | ||
JP2006136336 | 2006-05-16 | ||
JP2007547068A JP4946868B2 (ja) | 2006-05-16 | 2007-04-18 | 潤滑油組成物 |
PCT/JP2007/058441 WO2007132626A1 (ja) | 2006-05-16 | 2007-04-18 | 潤滑油組成物 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2007132626A1 JPWO2007132626A1 (ja) | 2009-09-24 |
JP4946868B2 true JP4946868B2 (ja) | 2012-06-06 |
Family
ID=38693726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007547068A Active JP4946868B2 (ja) | 2006-05-16 | 2007-04-18 | 潤滑油組成物 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8188018B2 (ja) |
JP (1) | JP4946868B2 (ja) |
WO (1) | WO2007132626A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4480748B2 (ja) * | 2007-09-13 | 2010-06-16 | 株式会社椿本チエイン | 潤滑油及び無給油チェーン |
CN101205499B (zh) * | 2007-11-28 | 2010-06-09 | 周贤言 | 一种铝镁合金拉丝润滑剂 |
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DE102020111392A1 (de) * | 2020-04-27 | 2021-10-28 | Klüber Lubrication München Se & Co. Kg | Schmierstoffzusammensetzung und deren Verwendung |
JP2022104376A (ja) * | 2020-12-28 | 2022-07-08 | 日本電産株式会社 | 流体軸受用潤滑油、流体軸受、モータ及び送風機 |
CN112879528B (zh) * | 2021-01-25 | 2022-11-01 | 安徽工业大学 | 一种具有供油回油功能的自润滑齿轮及密封组件 |
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US20090105103A1 (en) | 2009-04-23 |
JPWO2007132626A1 (ja) | 2009-09-24 |
US8188018B2 (en) | 2012-05-29 |
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