JP2005213377A - Grease base oil - Google Patents
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Abstract
【課題】低温での潤滑性に優れ、幅広い温度範囲で使用することができるグリース基油を提供すること。
【解決手段】−４０℃での粘度が９０００ｍＰａ・ｓ以下であり、流動点が−４０℃以下であり、１８０℃で５００時間加熱したときの揮発量が３５重量％以下であり、かつ粘度指数が１３０以上であるグリース基油。
【選択図】なしTo provide a grease base oil that has excellent lubricity at low temperatures and can be used in a wide temperature range.
The viscosity at −40 ° C. is 9000 mPa · s or less, the pour point is −40 ° C. or less, the volatilization amount when heated at 180 ° C. for 500 hours is 35% by weight or less, and the viscosity index A grease base oil having 130 or more.
[Selection figure] None
Description
本発明は、グリース基油に関する。更に詳しくは、幅広い温度範囲で長期間にわたって優れた潤滑性を有するグリース基油に関する。 The present invention relates to a grease base oil. More specifically, the present invention relates to a grease base oil having excellent lubricity over a long period of time in a wide temperature range.
グリース基油は、主として機械等に潤滑油として幅広く用いられているが、近年の機械類の高性能化に伴い、グリース基油には、低温時における潤滑性が優れることのほか、高温で長時間使用した場合であっても優れた潤滑性を維持し、幅広い温度範囲で優れた潤滑性を長期間にわたって保持するという性質が求められている。 Grease base oils are widely used mainly as lubricants in machinery, etc. However, with the recent improvement in machinery performance, grease base oils have excellent lubricity at low temperatures and are long at high temperatures. There is a demand for the property of maintaining excellent lubricity even when used for a long time and maintaining excellent lubricity over a long period of time in a wide temperature range.
これらの性質を満足するグリース基油として、ペンタエリスリトールとカルボン酸とのエステルからなるグリース基油が提案されている（例えば、特許文献１参照）。 As a grease base oil satisfying these properties, a grease base oil composed of an ester of pentaerythritol and carboxylic acid has been proposed (see, for example, Patent Document 1).
しかし、近年、更に、低温であっても粘度が低く、低温流動性及び高粘度指数を有し、揮発量が少なく、幅広い温度範囲で潤滑性を呈するグリース基油の開発が待ち望まれている。 However, in recent years, the development of a grease base oil that has a low viscosity even at low temperatures, has a low temperature fluidity and a high viscosity index, has a small volatilization amount, and exhibits lubricity in a wide temperature range is awaited.
本発明は、低温での潤滑性に優れ、幅広い温度範囲で使用することができるグリース基油を提供することを課題とする。 An object of the present invention is to provide a grease base oil that has excellent lubricity at low temperatures and can be used in a wide temperature range.
本発明は、−４０℃での粘度が９０００ｍＰａ・ｓ以下であり、流動点が−４０℃以下であり、１８０℃で５００時間加熱したときの揮発量が３５重量％以下であり、かつ粘度指数が１３５以上であるグリース基油に関する。 The present invention has a viscosity at −40 ° C. of 9000 mPa · s or less, a pour point of −40 ° C. or less, a volatilization amount of 35% by weight or less when heated at 180 ° C. for 500 hours, and a viscosity index. This relates to a grease base oil having a ≧ 135.
本発明のグリース基油は、低温での潤滑性に優れ、幅広い温度範囲で使用することができるという効果を奏する。 The grease base oil of the present invention is excellent in lubricity at a low temperature and has an effect that it can be used in a wide temperature range.
グリース基油の−４０℃における粘度は、ＡＳＴＭ Ｄ２９８３に規定の方法でブルックフィールド粘度計を用いて測定したときの値である。グリース基油の−４０℃における粘度は、低温時における回転トルクの低減を図り、ひいては回転軸の始動性及び省エネルギー化を向上させる観点から、９０００ｍＰａ・ｓ以下、好ましくは８５００ｍＰａ・ｓ以下、より好ましくは８０００ｍＰａ・ｓ以下である。 The viscosity at −40 ° C. of the grease base oil is a value measured using a Brookfield viscometer by a method prescribed in ASTM D2983. The viscosity at −40 ° C. of the grease base oil is 9000 mPa · s or less, preferably 8500 mPa · s or less, more preferably from the viewpoint of reducing the rotational torque at low temperatures and improving the startability and energy saving of the rotating shaft. Is 8000 mPa · s or less.
グリース基油を１８０℃で５００時間加熱したときの揮発量は、グリース基油約２０ｇを１００ｍＬのビーカーに入れ、雰囲気温度が１８０℃の恒温槽内で５００時間加熱したときの重量減少量から、式：
〔揮発量（重量％）〕
＝〔（加熱前のグリース基油の重量−加熱後のグリース基油の重量）
÷加熱前のグリース基油の重量〕×１００
によって求められる。
The amount of volatilization when the grease base oil is heated at 180 ° C. for 500 hours is based on the weight loss when about 20 g of grease base oil is placed in a 100 mL beaker and heated in a constant temperature bath at an ambient temperature of 180 ° C. for 500 hours. formula:
[Volatilization amount (% by weight)]
= [(Weight of grease base oil before heating−weight of grease base oil after heating)
÷ weight of grease base oil before heating] × 100
Sought by.
グリース基油を１８０℃で５００時間加熱したときの揮発量は、高温下であっても優れた潤滑性を長期間維持させる観点から、３５重量％以下、好ましくは３０重量％以下、より好ましくは２５重量％以下、更に好ましくは２２重量％以下である。 The amount of volatilization when the grease base oil is heated at 180 ° C. for 500 hours is 35% by weight or less, preferably 30% by weight or less, more preferably from the viewpoint of maintaining excellent lubricity for a long time even at a high temperature. It is 25% by weight or less, more preferably 22% by weight or less.
グリース基油の流動点は、ＪＩＳ Ｋ２２６９に規定の方法で測定したときの値である。グリース基油の流動点は、低温時における流動性を高める観点から、−４０℃以下、好ましくは−４５℃以下、より好ましくは−５０℃以下である。 The pour point of the grease base oil is a value measured by a method defined in JIS K2269. The pour point of the grease base oil is −40 ° C. or lower, preferably −45 ° C. or lower, more preferably −50 ° C. or lower, from the viewpoint of improving the fluidity at low temperatures.
グリース基油の４０℃での動粘度は、低温時における流動性を向上させ、高温下でのグリース基油の揮発量を低減させる観点から、好ましくは１０〜８０ｍｍ2 ／ｓ、より好ましくは１０〜６５ｍｍ2 ／ｓ、更に好ましくは１５〜５０ｍｍ2 ／ｓ、より一層好ましくは１５〜３５ｍｍ2 ／ｓである。グリース基油の４０℃における動粘度は、ＪＩＳ Ｋ２２８３に規定の方法で測定したときの値である。 The kinematic viscosity at 40 ° C. of the grease base oil is preferably 10 to 80 mm 2 / s, more preferably 10 from the viewpoint of improving the fluidity at low temperatures and reducing the volatilization amount of the grease base oil at high temperatures. It is -65mm < 2 > / s, More preferably, it is 15-50mm < 2 > / s, More preferably, it is 15-35mm < 2 > / s. The kinematic viscosity at 40 ° C. of the grease base oil is a value measured by a method defined in JIS K2283.
グリース基油の１００℃での動粘度は、高温での安定な潤滑性を確保する観点から、好ましくは３．１〜１１．５ｍｍ2 ／ｓ、より好ましくは３．２〜９．８ｍｍ2 ／ｓ、更に好ましくは３．８〜８．１ｍｍ2 ／ｓ、より一層好ましくは４．０〜６．４ｍｍ2 ／ｓである。グリース基油の１００℃における動粘度は、ＪＩＳ Ｋ２２８３に規定の方法で測定したときの値である。 Kinematic viscosity at 100 ° C. Grease oil, in order to ensure a stable lubrication at high temperatures, preferably 3.1~11.5mm 2 / s, more preferably 3.2~9.8mm 2 / s, more preferably 3.8 to 8.1 mm 2 / s, even more preferably 4.0 to 6.4 mm 2 / s. The kinematic viscosity at 100 ° C. of the grease base oil is a value when measured by a method defined in JIS K2283.
以上の観点から、グリース基油の４０℃での動粘度が好ましくは１０〜８０ｍｍ2 ／ｓ、より好ましくは１０〜６５ｍｍ2 ／ｓ、更に好ましくは１５〜５０ｍｍ2 ／ｓ、より一層好ましくは１５〜３５ｍｍ2 ／ｓであり、グリース基油の１００℃での動粘度が好ましくは３．１〜１１．５ｍｍ2 ／ｓ、より好ましくは３．２〜９．８ｍｍ2 ／ｓ、更に好ましくは３．８〜８．１ｍｍ2 ／ｓ、より一層好ましくは４．０〜６．４ｍｍ2 ／ｓであることが望ましい。 From the viewpoints described above, preferably a kinematic viscosity at 40 ° C. Grease oil is 10 to 80 mm 2 / s, more preferably 10~65mm 2 / s, more preferably 15 to 50 mm 2 / s, even more preferably 15 ~35mm a 2 / s, preferably a kinematic viscosity at 100 ° C. grease oil is 3.1~11.5mm 2 / s, more preferably 3.2~9.8mm 2 / s, more preferably 3 It is desirable that the thickness is 0.8 to 8.1 mm 2 / s, more preferably 4.0 to 6.4 mm 2 / s.
グリース基油の粘度指数は、ＪＩＳ Ｋ２２８３に規定の方法で算出した値である。グリース基油の粘度指数は、高温下での潤滑性を向上させる観点から、１３０以上、好ましくは１３５以上、より好ましくは１４０以上、更に好ましくは１４５以上である。 The viscosity index of the grease base oil is a value calculated by a method defined in JIS K2283. The viscosity index of the grease base oil is 130 or more, preferably 135 or more, more preferably 140 or more, and still more preferably 145 or more, from the viewpoint of improving the lubricity at high temperatures.
グリース基油は、優れた熱安定性、低揮発性、好適な粘度等を発現させる観点から、３価のアルコールと、直鎖脂肪酸及び分岐脂肪酸とから得られるエステルを含有するものであることが好ましい。 The grease base oil contains an ester obtained from a trivalent alcohol, a linear fatty acid, and a branched fatty acid from the viewpoint of developing excellent thermal stability, low volatility, suitable viscosity, and the like. preferable.
３価のアルコールは、好ましくは３価のヒンダードアルコールである。３価のヒンダードアルコールの例としては、トリメチロールプロパン、トリメチロールブタン等が挙げられる。これらの中では、低温における粘度を低くし、低温時における回転トルクの低減を図り、ひいては始動性及び省エネルギー化を向上させるとともに、優れた熱安定性、低揮発性等を発現させる観点から、トリメチロールプロパンを単独で用いるか、あるいはトリメチロールプロパンを７０重量％以上含有する３価のアルコールを用いることが好ましく、なかでもトリメチロールプロパンを単独で用いることがより好ましい。 The trivalent alcohol is preferably a trivalent hindered alcohol. Examples of trivalent hindered alcohols include trimethylolpropane and trimethylolbutane. Among these, from the viewpoint of lowering the viscosity at low temperature and reducing the rotational torque at low temperature, thereby improving startability and energy saving, and exhibiting excellent thermal stability, low volatility, etc. It is preferable to use methylolpropane alone or trivalent alcohol containing 70% by weight or more of trimethylolpropane, and it is more preferable to use trimethylolpropane alone.
好適な直鎖脂肪酸の例としては、炭素数６〜１２の直鎖脂肪酸、好ましくは炭素数６〜１２の直鎖飽和脂肪酸、より好ましくは炭素数８〜１０の直鎖飽和脂肪酸が挙げられる。好適な直鎖飽和脂肪酸の例としては、ｎ−ヘキサン酸、ｎ−ヘプタン酸、ｎ−オクタン酸、ｎ−ノナン酸、ｎ−デカン酸、ラウリン酸等が挙げられる。 Examples of suitable linear fatty acids include linear fatty acids having 6 to 12 carbon atoms, preferably linear saturated fatty acids having 6 to 12 carbon atoms, and more preferably linear saturated fatty acids having 8 to 10 carbon atoms. Examples of suitable linear saturated fatty acids include n-hexanoic acid, n-heptanoic acid, n-octanoic acid, n-nonanoic acid, n-decanoic acid, lauric acid and the like.
好適な分岐脂肪酸の例としては、炭素数１６の分岐脂肪酸及び／又は炭素数１８の分岐脂肪酸、好ましくは炭素数１６の分岐飽和脂肪酸及び／又は炭素数１８の分岐飽和脂肪酸が挙げられる。好適な分岐飽和脂肪酸の例としては、イソパルミチン酸、イソステアリン酸、α位に分岐鎖を有する２−ヘプチルウンデカン酸等が挙げられる。これらの中では、低揮発性及び高粘度指数を有するグリース基油を得る観点から、分子内にメチル基の分岐鎖を有するイソパルミチン酸及びイソステアリン酸が好ましい。 Examples of suitable branched fatty acids include branched fatty acids having 16 carbon atoms and / or branched fatty acids having 18 carbon atoms, preferably branched saturated fatty acids having 16 carbon atoms and / or branched saturated fatty acids having 18 carbon atoms. Examples of suitable branched saturated fatty acids include isopalmitic acid, isostearic acid, 2-heptylundecanoic acid having a branched chain at the α-position, and the like. Among these, from the viewpoint of obtaining a grease base oil having low volatility and high viscosity index, isopalmitic acid and isostearic acid having a branched chain of methyl group in the molecule are preferable.
直鎖脂肪酸と分岐脂肪酸との重量比（直鎖脂肪酸／分岐脂肪酸）は、低揮発性、十分な粘度指数及び低温での流動性の観点から、好ましくは６０／４０〜９５／５、より好ましくは６５／３５〜９０／１０、更に好ましくは７０／３０〜９０／１０、より一層好ましくは７５／２５〜９０／１０である。 The weight ratio of linear fatty acid to branched fatty acid (linear fatty acid / branched fatty acid) is preferably 60/40 to 95/5, more preferably from the viewpoints of low volatility, sufficient viscosity index and low temperature fluidity. Is 65/35 to 90/10, more preferably 70/30 to 90/10, and even more preferably 75/25 to 90/10.
本発明のグリース基油には、低温における粘度を低くし、低温時における回転トルクの低減を図り、ひいては始動性及び省エネルギー化を向上させるとともに、優れた熱安定性、低揮発性等を発現させる観点から、トリメチロールプロパンと、炭素数６〜１２の直鎖脂肪酸並びに炭素数１６の分岐脂肪酸及び／又は炭素数１８の分岐脂肪酸とから得られる脂肪酸エステルが含有されていることが好ましい。 The grease base oil of the present invention has a low viscosity at low temperatures, a reduction in rotational torque at low temperatures, and thus improved startability and energy saving, and exhibits excellent thermal stability, low volatility, etc. From the viewpoint, it is preferable that a fatty acid ester obtained from trimethylolpropane, a linear fatty acid having 6 to 12 carbon atoms, a branched fatty acid having 16 carbon atoms and / or a branched fatty acid having 18 carbon atoms is contained.
３価のアルコールと、分岐脂肪酸及び直鎖脂肪酸とを反応させるに際し、両者の当量比には、特に限定がないが、通常、３価のアルコールの水酸基１当量あたり、分岐脂肪酸及び直鎖脂肪酸のカルボキシル基の合計量が１〜１．３当量となるように調整することが好ましい。 When the trivalent alcohol is reacted with the branched fatty acid and the straight chain fatty acid, the equivalent ratio of the two is not particularly limited. Usually, the equivalent of the branched fatty acid and the straight chain fatty acid per one equivalent of the hydroxyl group of the trivalent alcohol. It is preferable to adjust so that the total amount of a carboxyl group may be 1-1.3 equivalent.
なお、３価のアルコールの水酸基１当量あたりの分岐脂肪酸及び直鎖脂肪酸のカルボキシル基の比率を高くした場合、３価のアルコールと分岐脂肪酸及び直鎖脂肪酸との反応性が良好となる反面、反応終了後には過剰の脂肪酸が残存する。この場合、例えば、減圧留去、蒸気加熱、吸着剤を用いた吸着除去等の方法により、残存している過剰の脂肪酸を除去することができる。 In addition, when the ratio of the branched fatty acid per one equivalent of hydroxyl group of the trivalent alcohol and the carboxyl group of the linear fatty acid is increased, the reactivity between the trivalent alcohol, the branched fatty acid and the linear fatty acid is improved, but the reaction Excess fatty acid remains after completion. In this case, the remaining excess fatty acid can be removed by, for example, methods such as distillation under reduced pressure, steam heating, and adsorption removal using an adsorbent.
本発明のグリース基油における前記脂肪酸エステルは、単独で用いてもよく、あるいは、本発明の目的が達成させる範囲内で他のエステル、例えば、芳香族エステルを混合して用いてもよい。前記脂肪酸エステルの含有量は、低温流動性、揮発性及び粘度指数を満足させる観点から、好ましくは７０重量％以上、より好ましくは８０重量％以上、更に好ましくは９０重量％以上である。 The fatty acid ester in the grease base oil of the present invention may be used alone, or may be used by mixing other esters, for example, aromatic esters, within the range achieved by the object of the present invention. The content of the fatty acid ester is preferably 70% by weight or more, more preferably 80% by weight or more, and still more preferably 90% by weight or more from the viewpoint of satisfying low temperature fluidity, volatility and viscosity index.
前記脂肪酸エステルの酸価は、引火点、酸化安定性、熱安定性、加水分解安定性、金属腐食性等の観点から、好ましくは１ｍｇＫＯＨ／ｇ以下、より好ましくは０．５ｍｇＫＯＨ／ｇ以下、更に好ましくは０．１ｍｇＫＯＨ／ｇ以下である。 The acid value of the fatty acid ester is preferably 1 mgKOH / g or less, more preferably 0.5 mgKOH / g or less, more preferably from the viewpoints of flash point, oxidation stability, thermal stability, hydrolysis stability, metal corrosiveness, etc. Preferably it is 0.1 mgKOH / g or less.
前記脂肪酸エステルの水酸基価は、引火点、低温流動性、熱安定性、加水分解安定性等の観点から、好ましくは１０ｍｇＫＯＨ／ｇ以下、より好ましくは７ｍｇＫＯＨ／ｇ以下、更に好ましくは５ｍｇＫＯＨ／ｇ以下である。 The hydroxyl value of the fatty acid ester is preferably 10 mgKOH / g or less, more preferably 7 mgKOH / g or less, still more preferably 5 mgKOH / g or less, from the viewpoints of flash point, low temperature fluidity, thermal stability, hydrolysis stability and the like. It is.
なお、酸価及び水酸基価は、それぞれ、ＪＩＳ Ｋ００７０ ３．１（酸価）及びＪＩＳ Ｋ００７０ ７．２（水酸基価）に規定の方法で求めることができる。 The acid value and the hydroxyl value can be determined by the methods specified in JIS K0070 3.1 (acid value) and JIS K0070 7.2 (hydroxyl value), respectively.
本発明のグリース基油に、酸化防止剤、極圧剤、防錆剤、消泡剤、抗乳化剤、増粘剤等の添加剤を加えることにより、グリースを得ることができる。本発明のグリース基油が用いられたグリースは、十分な潤滑性を発揮させる観点から、−６０〜２５０℃、好ましくは−５０〜２００℃の温度範囲内で用いることが好ましい。 A grease can be obtained by adding additives such as an antioxidant, an extreme pressure agent, a rust inhibitor, an antifoaming agent, a demulsifier, and a thickener to the grease base oil of the present invention. The grease using the grease base oil of the present invention is preferably used within a temperature range of −60 to 250 ° C., preferably −50 to 200 ° C., from the viewpoint of exerting sufficient lubricity.
実施例１〜２及び比較例１〜３
２リットルの４つ口フラスコに、表１に示す工業的に入手しうる、脂肪酸とアルコールとを、アルコールの水酸基１個に対して脂肪酸のカルボキシル基が１．１当量となるように仕込んだ。
Examples 1-2 and Comparative Examples 1-3
Into a 2 liter four-necked flask, an industrially available fatty acid and alcohol shown in Table 1 were charged so that the carboxyl group of the fatty acid was 1.1 equivalent to one hydroxyl group of the alcohol.
次に、フラスコ内に、窒素ガスを吹き込みながら２５０℃で１４時間反応させ、留出する水を除去した。反応終了後、１ｋＰａの減圧下で過剰のカルボン酸を除き、１ｋＰａの減圧下で１時間蒸気を吹き込んだ。引き続いて、吸着剤〔協和化学工業（株）製、商品名：キョーワドー５００ＳＨ〕で残存しているカルボン酸を吸着させた後、濾過を行ない、脂肪酸エステルを得た。この脂肪酸エステルをグリース基油として用いた。 Next, it was made to react at 250 degreeC for 14 hours, blowing nitrogen gas in a flask, and the distilled water was removed. After completion of the reaction, excess carboxylic acid was removed under reduced pressure of 1 kPa, and steam was blown in under reduced pressure of 1 kPa for 1 hour. Subsequently, the remaining carboxylic acid was adsorbed with an adsorbent (manufactured by Kyowa Chemical Industry Co., Ltd., trade name: KYOWADO 500SH), followed by filtration to obtain a fatty acid ester. This fatty acid ester was used as a grease base oil.
次に、得られたグリース基油の物性として、−４０℃での粘度、揮発量、流動点、４０℃又は１００℃での動粘度、粘度指数、酸価及び水酸基価並びに潤滑性を以下の方法にしたがって調べた。その結果を表２に示す。 Next, as physical properties of the obtained grease base oil, the viscosity at −40 ° C., the volatilization amount, the pour point, the kinematic viscosity at 40 ° C. or 100 ° C., the viscosity index, the acid value, the hydroxyl value, and the lubricity are as follows: It investigated according to the method. The results are shown in Table 2.
（１）−４０℃での粘度
ＡＳＴＭ Ｄ２９８３に規定の方法でブルックフィールド粘度計を用いて測定した。
（２）揮発量
得られた脂肪酸エステル２０ｇを１８０℃の恒温槽に入れ、大気中で５００時間加熱した後、ＪＩＳ Ｋ２２２０５．６に規定の方法で揮発量を求めた。
（３）流動点
ＪＩＳ Ｋ２２６９に規定の方法で流動点を求めた。
（４）４０℃又は１００℃での動粘度
ＪＩＳ Ｋ２２８３に規定の方法で４０℃又は１００℃での動粘度を求めた。
(1) Viscosity at −40 ° C. Viscosity was measured using a Brookfield viscometer by the method prescribed in ASTM D2983.
(2) Volatilization amount 20 g of the obtained fatty acid ester was placed in a 180 ° C. constant temperature bath and heated in the atmosphere for 500 hours, and then the volatilization amount was determined by the method defined in JIS K22205.6.
(3) Pour point The pour point was determined by the method specified in JIS K2269.
(4) Kinematic viscosity at 40 ° C. or 100 ° C. The kinematic viscosity at 40 ° C. or 100 ° C. was determined by the method defined in JIS K2283.
（５）粘度指数
ＪＩＳ Ｋ２２８３に規定の方法で粘度指数を求めた。
（６）酸価
ＪＩＳ Ｋ００７０ ３．１に規定の方法で酸価を求めた。
（７）水酸基価
ＪＩＳ Ｋ００７０ ７．２に規定の方法で水酸基価を求めた。
（８）潤滑性
ＪＩＳ Ｋ２２２０ ５．１４に規定の方法で−４０℃の雰囲気中で起動トルク及び回転トルクを測定することにより、潤滑性を評価した。
(5) Viscosity index The viscosity index was determined by the method specified in JIS K2283.
(6) Acid value The acid value was determined by the method specified in JIS K0070 3.1.
(7) Hydroxyl value The hydroxyl value was determined by the method specified in JIS K0070 7.2.
(8) Lubricity The lubricity was evaluated by measuring the starting torque and the rotating torque in an atmosphere of −40 ° C. by the method specified in JIS K2220 5.14.
表２に示された結果から、各実施例で得られたグリース基油は、各比較例で得られたグリース基油と対比して、−５０℃以下という低温で流動点を有するとともに、−４０℃という低温で、低粘度を有しトルクが低く潤滑性に優れていることがわかる。また、各実施例で得られたグリース基油は、４０℃及び１００℃での動粘度から求められる粘度指数が高く、揮発量が少ないため、幅広い温度範囲で使用しうるものであることがわかる。 From the results shown in Table 2, the grease base oil obtained in each example has a pour point at a low temperature of −50 ° C. or lower as compared with the grease base oil obtained in each comparative example, and − It can be seen that at a low temperature of 40 ° C., the viscosity is low, the torque is low and the lubricity is excellent. In addition, the grease base oil obtained in each example has a high viscosity index determined from the kinematic viscosity at 40 ° C. and 100 ° C. and has a small volatilization amount, so that it can be used in a wide temperature range. .
本発明のグリース基油は、例えば、温度変化が激しい状況下で使用される機械油、電機絶縁油、冷凍機油、作動油、コンプレッサー油等の潤滑油としてのみならず、熱媒体、合成樹脂用可塑剤、滑剤、離型剤、結晶化促進剤等として好適に使用することができる。 The grease base oil of the present invention is not only used as a lubricating oil such as machine oil, electrical insulation oil, refrigeration oil, hydraulic oil, compressor oil, etc. used under conditions where temperature changes are severe, but also for heat medium and synthetic resin. It can be suitably used as a plasticizer, lubricant, mold release agent, crystallization accelerator and the like.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007332134A (en) * | 2006-05-17 | 2007-12-27 | Kao Corp | Method for producing ester for lubricating oil |
| JP2008291149A (en) * | 2007-05-25 | 2008-12-04 | Kao Corp | Lubricating base oil |
| JP2011173942A (en) * | 2010-02-23 | 2011-09-08 | Kyodo Yushi Co Ltd | Grease composition for roller type one-way clutch |
| WO2015016258A1 (en) | 2013-07-31 | 2015-02-05 | 富士フイルム株式会社 | Composite polyester composition, lubricant composition, lubricant, and production method for composite polyester composition |
| WO2015016260A1 (en) | 2013-07-31 | 2015-02-05 | 富士フイルム株式会社 | Production method for composite polyester composition, composite polyester composition, lubricant composition, and lubricant |
| US9080127B2 (en) | 2009-06-24 | 2015-07-14 | Fujifilm Corporation | Composition, compound and film forming method |
| US9255058B2 (en) | 2009-09-28 | 2016-02-09 | Fujifilm Corporation | Complex alcohol ester composition, method for production same, and use of same |
| US9976100B2 (en) | 2014-02-27 | 2018-05-22 | Fujifilm Corporation | Lubricant composition |
| US10889778B2 (en) | 2016-08-31 | 2021-01-12 | FUJIFILM Cornoration | Manufacturing method of lubricant composition and lubricant composition |
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- 2004-01-29 JP JP2004022100A patent/JP4478471B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007332134A (en) * | 2006-05-17 | 2007-12-27 | Kao Corp | Method for producing ester for lubricating oil |
| JP2008291149A (en) * | 2007-05-25 | 2008-12-04 | Kao Corp | Lubricating base oil |
| US9080127B2 (en) | 2009-06-24 | 2015-07-14 | Fujifilm Corporation | Composition, compound and film forming method |
| US9255058B2 (en) | 2009-09-28 | 2016-02-09 | Fujifilm Corporation | Complex alcohol ester composition, method for production same, and use of same |
| JP2011173942A (en) * | 2010-02-23 | 2011-09-08 | Kyodo Yushi Co Ltd | Grease composition for roller type one-way clutch |
| WO2015016258A1 (en) | 2013-07-31 | 2015-02-05 | 富士フイルム株式会社 | Composite polyester composition, lubricant composition, lubricant, and production method for composite polyester composition |
| WO2015016260A1 (en) | 2013-07-31 | 2015-02-05 | 富士フイルム株式会社 | Production method for composite polyester composition, composite polyester composition, lubricant composition, and lubricant |
| US9617492B2 (en) | 2013-07-31 | 2017-04-11 | Fujifilm Corporation | Complex polyester composition, lubricant composition, lubricant, and production method for complex polyester composition |
| US9663742B2 (en) | 2013-07-31 | 2017-05-30 | Fujifilm Corporation | Production method for complex polyester composition, complex polyester composition, lubricant composition, and lubricant |
| US9976100B2 (en) | 2014-02-27 | 2018-05-22 | Fujifilm Corporation | Lubricant composition |
| US10889778B2 (en) | 2016-08-31 | 2021-01-12 | FUJIFILM Cornoration | Manufacturing method of lubricant composition and lubricant composition |
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