JPH01188591A - Lubricating oil composition - Google Patents
Lubricating oil compositionInfo
- Publication number
- JPH01188591A JPH01188591A JP63010911A JP1091188A JPH01188591A JP H01188591 A JPH01188591 A JP H01188591A JP 63010911 A JP63010911 A JP 63010911A JP 1091188 A JP1091188 A JP 1091188A JP H01188591 A JPH01188591 A JP H01188591A
- Authority
- JP
- Japan
- Prior art keywords
- group
- lubricating oil
- ester
- organosiloxane
- fluorine
- 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.)
- Pending
Links
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 40
- 125000005375 organosiloxane group Chemical group 0.000 claims abstract description 22
- 125000004185 ester group Chemical group 0.000 claims abstract description 14
- 150000002148 esters Chemical class 0.000 claims abstract description 13
- 150000002430 hydrocarbons Chemical group 0.000 claims abstract description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 23
- 229910052731 fluorine Inorganic materials 0.000 abstract description 18
- 239000011737 fluorine Substances 0.000 abstract description 18
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003921 oil Substances 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 description 18
- 230000000694 effects Effects 0.000 description 10
- 230000001050 lubricating effect Effects 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 5
- -1 polytetrafluoroethylene Polymers 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 4
- 150000005690 diesters Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical compound CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005069 Extreme pressure additive Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 125000005041 acyloxyalkyl group Chemical group 0.000 description 1
- 125000005078 alkoxycarbonylalkyl group Chemical group 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- ABDBNWQRPYOPDF-UHFFFAOYSA-N carbonofluoridic acid Chemical compound OC(F)=O ABDBNWQRPYOPDF-UHFFFAOYSA-N 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 150000002221 fluorine Chemical class 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、特定の含フツ素オルガノシロキサンをエステ
ル系潤滑油に配合してなる潤滑油組成物に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a lubricating oil composition comprising a specific fluorine-containing organosiloxane added to an ester lubricating oil.
［従来の技術及び発明の解決しようとする課題］従来よ
り、機械、プラスチック等の分野の摺動部位の摩耗を低
減させるため、鉱油、エステル系潤滑油をはじめとして
種々の潤滑油が使用されているが、近年の省エネルギー
指向や、長期使用化への要請等に対応する、より高性能
の潤滑油の開発が要望されている。通常、潤滑油には特
性を向上させる種々の添加剤が混合されている。[Prior art and problems to be solved by the invention] Various lubricating oils, including mineral oil and ester-based lubricating oil, have been used to reduce wear on sliding parts in the fields of machinery, plastics, etc. However, there is a demand for the development of higher performance lubricating oils in response to recent trends toward energy conservation and demands for long-term use. Usually, lubricating oils are mixed with various additives that improve their properties.
この目的にポリテトラフルオロエチレンやフッ化黒鉛を
潤滑油へ添加することが広く研究され一部実用化されて
おり、これらはすぐれた性能を示すものの潤滑油に溶解
しない固体を使用しているため使用範囲に制限があった
。For this purpose, the addition of polytetrafluoroethylene and fluorinated graphite to lubricating oils has been widely studied and partially put into practical use, and although these have excellent performance, they use solids that do not dissolve in lubricating oils. There were restrictions on the range of use.
また、最近パーフルオロアミドやパーフルオロカルボン
酸等のフッ素系化合物を添加する方法［ＡＳＬＥ Ｔｒ
ａｎｓ、 、 ２７． （４） 、 ３８０（１９８４
）および石油学会誌２９． （２） 、 ＋８３ （＋
９８６） ］も試みられたが、潤滑油への溶解性が不十
分であったり、金属を腐蝕する等の欠点があり、実用化
には至っていない。Recently, a method of adding fluorine compounds such as perfluoramide and perfluorocarboxylic acid [ASLE Tr
ans, , 27. (4), 380 (1984
) and Journal of the Japan Petroleum Society 29. (2) , +83 (+
986)] have also been attempted, but they have drawbacks such as insufficient solubility in lubricating oil and corrosion of metals, and have not been put to practical use.
［課題を解決するための手段］
本発明者は、ジエステル系やポリオールエステル系の潤
滑油の潤滑性能を改善すべく鋭意検討した結果、ポリフ
ルオロアルキル基を含有するオルガノシロキサンを配合
することにより、潤滑性能が向上することがわかった。[Means for Solving the Problems] As a result of intensive studies to improve the lubricating performance of diester-based and polyol ester-based lubricating oils, the present inventors have found that by blending an organosiloxane containing a polyfluoroalkyl group, It was found that the lubrication performance was improved.
しかしながら、この含フツ素オルガノシロキサンはメチ
ル基等の通常のアルキル基を含有するものではエステル
系潤滑油への溶解性が悪く、潤滑性能−の改善効果が小
さいという新たな問題点があることがわかった。この問
題点を解決すべくさらに検討を進めた結果、エステル基
を含む炭素数５〜４０の炭化水素基を含有する含フツ素
オルガノシロキサンを採用することにより、溶解性が改
善され、潤滑性能が著しく向上したエステル系潤滑油が
得られることを見い出し本発明に至ったものである。However, this fluorine-containing organosiloxane containing ordinary alkyl groups such as methyl groups has poor solubility in ester-based lubricating oils, and there is a new problem that the improvement effect on lubricating performance is small. Understood. As a result of further studies to solve this problem, we found that by using a fluorine-containing organosiloxane containing a hydrocarbon group with 5 to 40 carbon atoms including an ester group, solubility was improved and lubrication performance was improved. The inventors have discovered that an ester-based lubricating oil with significantly improved results can be obtained, leading to the present invention.
すなわち、本発明はエステル基を含む炭素数５〜４０の
炭化水素基とポリフルオロアルキル基を併有するオルガ
ノシロキサンをエステル系潤滑油に配合してなることを
特徴とする潤滑油組成物に関するものである。That is, the present invention relates to a lubricating oil composition characterized in that an organosiloxane having both a hydrocarbon group having 5 to 40 carbon atoms containing an ester group and a polyfluoroalkyl group is blended into an ester-based lubricating oil. be.
本発明におけるエステル系潤滑油としては、ジエステル
系又はポリオールエステル系などのカルボン酸エステル
系、有機リン酸エステル系、有機ケイ酸エステル系の合
成油を基油とするものであればいかなるものも使用する
ことができる。As the ester-based lubricating oil in the present invention, any oil based on a carboxylic acid ester-based, organic phosphate-based, or organic silicate-based synthetic oil such as diester-based or polyol ester-based oil can be used. can do.
このエステル系潤滑油に配合する本発明におけるオルガ
ノシロキサンとしては、潤滑性能向上に役立つポリフル
オロアルキル基を必須の基として含有するものである。The organosiloxane used in the present invention to be blended into this ester-based lubricating oil contains a polyfluoroalkyl group as an essential group, which is useful for improving lubricating performance.
ポリフルオロアルキル基（分岐又は直鎖状パーフルオロ
アルキル基あるいは、このパーフルオロアルキルのフッ
素原子の一部が塩素原子や水素原子で置換されたアルキ
ル基）としては、炭素数１〜２０、好ましくは３〜１４
のパーフルオロアルキル基が好ましく用いられる。パー
フルオロアルキル基の炭素数がこれより小さいと潤滑特
性向上効果が小さく、多いとニスデル系潤滑油への溶解
性が充分でなくなるため好ましくない。ポリフルオロア
ルキル基とＳｉＯとの結合基は、アルキレン基やフェニ
レン基が好ましい。アルキレン基としては、−０１１゜
−、（Ｃ１１□）２−１（ＣＩ＋□）３−、（ＣＨ□）
４−１Ｈ３
き、製造上（ＣＩ＋２）２が好ましい。The polyfluoroalkyl group (branched or linear perfluoroalkyl group or alkyl group in which some of the fluorine atoms of this perfluoroalkyl are substituted with chlorine atoms or hydrogen atoms) has 1 to 20 carbon atoms, preferably 3-14
A perfluoroalkyl group is preferably used. If the number of carbon atoms in the perfluoroalkyl group is smaller than this, the effect of improving the lubricating properties will be small, and if it is larger than this, the solubility in Nisder type lubricating oil will not be sufficient, which is not preferable. The bonding group between the polyfluoroalkyl group and SiO is preferably an alkylene group or a phenylene group. As an alkylene group, -011゜-, (C11□)2-1(CI+□)3-, (CH□)
4-1H3, and (CI+2)2 is preferable for manufacturing reasons.
本発明におけるオルガノシロキサンは、０１ｊ記ポリフ
ルオロアルキル基とともにエステル基を含む炭素数５〜
４０の炭化水素基を必須の基として含有することが重要
である。すなわち、ポリフルオロアルキル基とメチル基
を併有する通常の含フツ素オルガノシロキサンでは、エ
ステル系潤滑油への溶解性が不十分であり、潤滑性能向
上効果を得ることができない。本発明者の検討によれば
、前記溶解性不良は、ポリフルオロアルキル基中のフッ
素含有量に対して、これ以外のアルキル基等の炭化水素
基（以下単に非フツ素炭化水素基という）の含有量が不
足する場合におこることがわかった。一方、非フツ素炭
化水素基がメチル基であっても、ポリフルオロアルキル
基の炭素数又はフッ素含有量を減らずことにより溶解性
は改善されるが、逆にポリフルオロアルキル基による潤
滑性能効果が低下することかわかった。本発明における
オルガノシロキサンは、非フツ素炭化水素基としてメチ
ル基等の他にエステル基を含む炭素数５〜４０の炭化水
素基を含有しているため、フッ素含有量を減らすことな
く、すなわち潤滑性能向上効果を維持したまま、溶解性
も優れるものである。The organosiloxane in the present invention has 5 to 5 carbon atoms and contains an ester group as well as a polyfluoroalkyl group described in 01j.
It is important to contain 40 hydrocarbon groups as essential groups. That is, ordinary fluorine-containing organosiloxanes having both a polyfluoroalkyl group and a methyl group have insufficient solubility in ester-based lubricating oils, and cannot obtain the effect of improving lubrication performance. According to the studies of the present inventors, the poor solubility is caused by the fluorine content of other hydrocarbon groups such as alkyl groups (hereinafter simply referred to as non-fluorine hydrocarbon groups) relative to the fluorine content in the polyfluoroalkyl group. It was found that this occurs when the content is insufficient. On the other hand, even if the non-fluorine hydrocarbon group is a methyl group, solubility is improved by not reducing the number of carbon atoms or fluorine content of the polyfluoroalkyl group, but on the other hand, the lubricating performance of the polyfluoroalkyl group is was found to decrease. Since the organosiloxane in the present invention contains a hydrocarbon group having 5 to 40 carbon atoms including an ester group in addition to a methyl group as a non-fluorine hydrocarbon group, it can be used without reducing the fluorine content. It also has excellent solubility while maintaining the performance improvement effect.
エステル基を含む炭素数５〜４０の炭化水素基としては
、アルキルニスデル基を含む炭素数５〜４０、好ましく
炭素数８〜３５の直鎖、分岐、又は環状構造からなる炭
化水素基がが好ましく、アルキルエステル基を含む炭素
数８〜３５の直鎖状構造からなる炭化水素基が溶解性に
優れ、より好ましい。特に炭素数５〜４０、好ましくは
８〜３５のアルコキシカルボニルアルキル、アシルオキ
シアルキルが好ましく、好適なものとして−Ｃ１ｌ□Ｏ
Ｃ］＋７１１３ａ、 （Ｃ１１２）３０ＣＣ９１１１
９，−（ＣＩ＋２１１０ＣＯＣ１１３゜ＩＩ
ＩＩ １１Ｃ＋ ７Ｈ３，＋Ｃ
ＯＣ＋ ｓｌｌ□７等を例示でき、１］
ポリフルオロアルキル基やエステル基を含む炭素数５〜
４０の炭化水素基はそれぞれ炭素数が異なる基を併用し
てもよい。さらに、本発明におけるオルガノシロキサン
中には、前記ポリフルオロアルキル基、エステル基を含
む炭素数５〜４０の炭化水素基の他に、炭素数１〜４の
アルキル基、アリール基等の非フツ素炭化水素基や水素
を含有してもよい。The hydrocarbon group having 5 to 40 carbon atoms and containing an ester group is a hydrocarbon group having a linear, branched, or cyclic structure having 5 to 40 carbon atoms, preferably 8 to 35 carbon atoms, and including an alkyl Nisder group. Preferably, a hydrocarbon group having a linear structure having 8 to 35 carbon atoms and containing an alkyl ester group has excellent solubility and is more preferable. Particularly preferred are alkoxycarbonylalkyl and acyloxyalkyl having 5 to 40 carbon atoms, preferably 8 to 35 carbon atoms, and -C1l□O
C]+7113a, (C112)30CC9111
9,-(CI+2110COC113゜II
II 11C+ 7H3, +C
Examples include OC+ sll□7, etc., and 1] carbon atoms containing polyfluoroalkyl groups and ester groups,
For the 40 hydrocarbon groups, groups having different numbers of carbon atoms may be used in combination. Furthermore, in the organosiloxane of the present invention, in addition to the above-mentioned polyfluoroalkyl groups and hydrocarbon groups having 5 to 40 carbon atoms, including ester groups, non-fluorinated groups such as alkyl groups having 1 to 4 carbon atoms, aryl groups, etc. It may contain a hydrocarbon group or hydrogen.
好適なオルガノシロキサンとしてはオルガノシロキサン
中のフッ素含有量１〜５０重量％、好ましくは３〜４０
重量％、エステル基を含む炭素数５〜４０の炭化水素基
を含む非フツ素炭化水素基含有量３０〜８０重量％、好
ましくは３５〜７０重量％、ＳｉＯ含有量５０重量％以
下、好ましくは４０重量％以下の組成範囲で規定される
ものが用いられる。A suitable organosiloxane has a fluorine content of 1 to 50% by weight, preferably 3 to 40% by weight.
Weight%, content of non-fluorine hydrocarbon groups including hydrocarbon groups having 5 to 40 carbon atoms including ester groups: 30 to 80% by weight, preferably 35 to 70% by weight, SiO content: 50% by weight or less, preferably Those defined within a composition range of 40% by weight or less are used.
これよりフッ素含有量が少なかったり、非フツ素化炭化
水素基含有量がこの範囲より多いと潤滑性向上効果が小
さい。また、フッ素含有量が多すぎたり、非フツ素化炭
化水素基含有量が少なすぎたりＳｉＯが多ずぎると潤滑
油への溶解性が不良となり好ましくない。If the fluorine content is less than this range or if the non-fluorinated hydrocarbon group content is greater than this range, the effect of improving lubricity will be small. Furthermore, if the fluorine content is too high, the non-fluorinated hydrocarbon group content is too low, or the SiO content is too large, the solubility in lubricating oil will be poor, which is not preferable.
オルガノシロキサンとエステル系潤滑油の混合割合は、
重量部基準でオルガノシロキサン／潤滑油＝ ｏ、 ０
５／ ９９．９５〜９９．０／１．０の範囲で任意に決
められるが、エステル系潤滑油の特性を活かすため、よ
り好ましくは０．１ ／９９．９〜２０／８０の割合が
採用される。The mixing ratio of organosiloxane and ester lubricating oil is
Organosiloxane/lubricating oil on a weight part basis = o, 0
The ratio can be arbitrarily determined within the range of 5/99.95 to 99.0/1.0, but in order to take advantage of the characteristics of ester lubricating oil, a ratio of 0.1/99.9 to 20/80 is more preferably adopted. be done.
本発明の潤滑油組成物には、各種用途に応じて、通常潤
滑油に添加される粘度指数向上剤、流動点降下剤、酸化
防止剤、清浄分散剤、極圧添加剤、摩擦調整剤、油性向
上剤、さび止め添加剤、消泡剤、着色剤等の化合物を添
加してもよい。The lubricating oil composition of the present invention includes viscosity index improvers, pour point depressants, antioxidants, detergent dispersants, extreme pressure additives, friction modifiers, Compounds such as oiliness improvers, anti-rust additives, antifoaming agents, coloring agents, etc. may be added.
本発明の潤滑油組成物は、輸送用機器や、各種機械の潤
滑油として、あるいは作動油、緩衝、グリース基油、熱
媒体等として用いることができる。The lubricating oil composition of the present invention can be used as a lubricating oil for transportation equipment and various machines, or as a hydraulic oil, a buffer, a grease base oil, a heat medium, and the like.
［作用］
本発明において、エステル基を含む炭素数５〜４０の炭
化水素基とポリフルオロアルキル基を併有するオルガノ
シロキサンは、エステル基を含む炭素数５〜４０の炭化
水素基により潤滑油への溶解性を付与され、ポリフルオ
ロアルキル基はその表面張力を著しく低下する作用を有
する。[Function] In the present invention, the organosiloxane having both a hydrocarbon group having 5 to 40 carbon atoms including an ester group and a polyfluoroalkyl group has a property that the organosiloxane has a hydrocarbon group having 5 to 40 carbon atoms including an ester group, and is capable of being added to lubricating oil by the hydrocarbon group having 5 to 40 carbon atoms including an ester group. The polyfluoroalkyl group imparts solubility and has the effect of significantly lowering its surface tension.
それ故、本潤滑油組成物は通常の潤滑油に比較して、表
面張力が低いため、摺動面への浸透性およびなじみ性が
著しく向上するうえ、油切れを防止するものと考えられ
る。Therefore, since the present lubricating oil composition has a lower surface tension than ordinary lubricating oils, it is considered that the permeability and conformability to sliding surfaces are significantly improved, and it also prevents oil from running out.
さらに、シロキサン主鎖の金属面への吸着等も考えられ
、潤滑特性が向」−するものと考えられる。Furthermore, adsorption of the siloxane main chain to the metal surface is also considered, which is thought to improve the lubricating properties.
［実施例］
実施例１〜２、比較例１〜３
ジエステル系潤滑油の基油、ジ（２−エチルヘキシル）
セバケートｌｏｇに種々のオルガノシロキサン１ｇを加
え室温（２５℃）で、その溶解性を測定した。[Example] Examples 1-2, Comparative Examples 1-3 Base oil of diester lubricating oil, di(2-ethylhexyl)
1 g of various organosiloxanes were added to the sebacate log and their solubility was measured at room temperature (25°C).
実施例３、比較例４
実施例１．２のオルガノシロキサン各０．２ｇをジ（２
−エチルヘキシル）セバケートｌＯｇに溶解した。潤滑
油■、■及びジ（２−エチルヘキシル）セバケートｌＤ
ｇからなる潤滑油■について、ウイルヘルミー法でその
表面張力を測定した。又、潤滑特性（摺動面への潤滑油
の浸透性）を評価した。Example 3, Comparative Example 4 0.2 g each of the organosiloxanes of Example 1.2 were added to di(2
-ethylhexyl) sebacate dissolved in 10 g. Lubricating oil ■, ■ and di(2-ethylhexyl) sebacate ID
The surface tension of the lubricating oil (1) consisting of g was measured using the Wilhelmy method. In addition, the lubrication properties (penetration of lubricating oil into sliding surfaces) were evaluated.
［発明の効果］
本発明は、エステル記を含む炭素数５〜４０の炭化水素
基とポリフルオロアルキル基を併有するオルガノシロキ
サンを含有する炭化水素系潤滑油に関するものであり、
潤滑油の表面張力が著しく低下し、摺動面への浸透性や
なじみ性が向上するという効果を有する。[Effects of the Invention] The present invention relates to a hydrocarbon lubricating oil containing an organosiloxane having both a hydrocarbon group having 5 to 40 carbon atoms including an ester group and a polyfluoroalkyl group,
This has the effect of significantly lowering the surface tension of the lubricating oil and improving its permeability and conformability to sliding surfaces.
また、油切れを防止する効果も有する。さらに、オルガ
ノシロキサン含量が高い場合には、耐熱性や耐薬品性が
向上するという効果も認められる。It also has the effect of preventing oil from running out. Furthermore, when the organosiloxane content is high, the effect of improving heat resistance and chemical resistance is also recognized.
】２]2
Claims (1)
リフルオロアルキル基を併有するオルガノシロキサンを
エステル系潤滑油に配合してなることを特徴とする潤滑
油組成物。1. A lubricating oil composition comprising an ester lubricating oil mixed with an organosiloxane having both a hydrocarbon group having 5 to 40 carbon atoms containing an ester group and a polyfluoroalkyl group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63010911A JPH01188591A (en) | 1988-01-22 | 1988-01-22 | Lubricating oil composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63010911A JPH01188591A (en) | 1988-01-22 | 1988-01-22 | Lubricating oil composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01188591A true JPH01188591A (en) | 1989-07-27 |
Family
ID=11763463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63010911A Pending JPH01188591A (en) | 1988-01-22 | 1988-01-22 | Lubricating oil composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01188591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01319590A (en) * | 1988-06-20 | 1989-12-25 | Tonen Corp | Hydraulic oil for motorcar excellent in hydraulic responsibility |
-
1988
- 1988-01-22 JP JP63010911A patent/JPH01188591A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01319590A (en) * | 1988-06-20 | 1989-12-25 | Tonen Corp | Hydraulic oil for motorcar excellent in hydraulic responsibility |
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