JP4693946B2 - Adhesive lubricating composition - Google Patents
Adhesive lubricating composition Download PDFInfo
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- JP4693946B2 JP4693946B2 JP14430299A JP14430299A JP4693946B2 JP 4693946 B2 JP4693946 B2 JP 4693946B2 JP 14430299 A JP14430299 A JP 14430299A JP 14430299 A JP14430299 A JP 14430299A JP 4693946 B2 JP4693946 B2 JP 4693946B2
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- oil
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- polyisoprene
- lubricating composition
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Description
【0001】
【発明の属する技術分野】
この発明は,粘着性潤滑組成物に関する。
【0002】
【従来の技術】
従来,粘着性潤滑組成物としては,潤滑性良好なポリブテン系の組成物がある。ポリブテン系組成物は,潤滑油又はグリースにポリブテン油を加えて粘着性を付与したり,或いはポリブテン油をベースにして潤滑油又はグリース化したものが知られている(例えば,特公平5−34394号公報参照)。
【0003】
また,特開昭53−67061号公報には,潤滑グリースが開示されている。該潤滑グリースは,ポリマー中の主鎖が1.4−構造を少なくとも70%以上含有する低分子量ポリイソプレンであり,平均分子量が150から5000までの鎖状重合体を水素添加することにより得られる合成油を基材とするものである。
【0004】
【発明が解決しようとする課題】
しかしながら,粘着性潤滑組成物におけるポリブテン系組成物は,潤滑性が良い反面,温度特性が好ましくなく,特に,低温特性が悪いという欠点がある。
【0005】
この発明の目的は,上記の問題を解決することであり,潤滑油及び/又はグリースの基油に,特定の物質を加え,ポリブテン系潤滑油よりも粘着性や潤滑性について−30℃における低温特性を向上させ,高性能の粘着性潤滑油及び/又は粘着性グリースを構成する回転ボリューム部品に使用される粘着性潤滑組成物を提供することである。
【0006】
【課題を解決するための手段】
この発明は,精製鉱油,合成炭化水素油,ポリブテン油,ジエステル油,シリコーン油,フッ素油,及びポリオキシアルキレングリコール油から選択される1種以上の潤滑油及び/又はグリースに,下記化学式1のシス−1.4−ポリイソプレン又は前記シス−1.4−ポリイソプレンを90%水添した下記化学式2の水添ポリイソプレンが,1〜95重量%含有され,前記グリースは増ちょう剤成分が0.1〜40重量%含有され,相対的に摺動する回転ボリューム部品に使用されることを特徴とする粘着性潤滑組成物に関する。 下記化学式1及び下記化学式2は次のとおりである。
【化1】
【化2】
但し,mは正の整数,及びnは正の整数である。
平均分子量(Mv)は10000から100000である。
【0007】
この粘着性潤滑組成物は,前記回転ボリューム部品に使用される前記潤滑油及び/又はグリースに添加して適用され,−30℃の低温時から25℃の高温時までの温度変化に対して前記回転ボリューム部品の粘着性のある操作フィーリングを得ることが可能である。
【0008】
この粘着性潤滑組成物は,上記のように構成されているので,粘着性や潤滑性についての低温特性が非常に良好になり,回転ボリューム部品の操作時或いは運転時のトルク変化が小さく,摺動部材と相手部材との密着性が良好になり,摺動部材間に安定した粘性を付与させることができる。従って,この粘着性潤滑組成物は,粘着力を有する潤滑剤として自動車,精密機械等の機器に使用して好ましく,特に,−30℃の低温においても一定の安定した温度特性,潤滑性,トルク,消音効果,操作性フィーリング等の特性を良好に保つことができる。
【0009】
この粘着性潤滑組成物におけるシス−1.4−ポリイソプレンや水添ポリイソプレンの添加剤は,常温では,ゴム状の性状を示す物質であり,潤滑剤としての用途に使用する場合には添加剤として使用することがなかったものであるが,グリースとして使用する場合には,上記のように,特定のベースオイルと組み合わせることにより,粘着性のある操作フィーリング等の特性を良好にする組成物を得ることができる。
【0010】
この粘着性潤滑組成物は,第1成分の化学式1(化1)で示されるシス−1.4−ポリイソプレン,又は化学式2(化2)で示される水添ポリイソプレン(平均分子量は10000から100000)の1〜95重量%を,石油系炭化水素油,合成油(ジエステル油,合成炭化水素油,グリコール油等)の潤滑油又はグリースに分散させ,溶解させることによって,粘着性潤滑油を得ることができる。また,これらの添加剤の平均分子量は,30℃でトルエン中の極限粘度より算出したものである。
【0011】
更に,上記の粘着性潤滑油をグリース化することによって,粘着性グリースを容易に得ることができる。グリースの増ちょう剤成分としては,リチウム石けん,ベントナイト,シリカ,ウレア等の一般的に使用される増ちょう剤であれば,この発明による粘着性潤滑組成物の増ちょう剤として好ましい。増ちょう剤の含有量は,0.1重量%〜40重量%であれば,グリース化が可能である。
【0012】
また,この粘着性潤滑組成物は,必要に応じて,酸化防止剤,EP剤(極圧剤)及び固体潤滑剤を加えてもよい。グリースのちょう度は,No.000〜4程度であれば,使用上問題がない。酸化防止剤は,例えば,アミン系,フェノール系,金属塩系を使用することができる。また,極圧剤は,例えば,モリブデンジサルファイド,或いはヘキサクロルステアリン等を使用することができる。
【0013】
この粘着性潤滑組成物は,成分原料を単に混合する方法,加圧熱処理等を行うことによって十分に混合する方法,或いは粘着性グリースであるならば,三本ロール,コロイドミル等を用いる方法で製造することができる。
【0014】
この粘着性潤滑組成物へのシス−1.4−ポリイソプレン又は水添ポリイソプレンの添加量は,全組成中1〜95重量%の範囲が適当である。この粘着性潤滑組成物への添加量が1重量%未満であれば,充分な粘着性を得ることができないし,また,添加量が95重量%を超えると,粘着性が強力になり,機器の作業性が悪く,使用上困難になって実用的でない。
【0015】
【発明の実施の形態】
以下,この発明による粘着性潤滑組成物の各実施例について説明する。また,この発明による粘着性潤滑組成物の実施例1〜6について,特性を比較するため,比較例として,粘着性潤滑組成物についての比較例1〜5を作った。
【0016】
〔実施例1〕
潤滑油としての精製鉱油A(40℃,140mm2 /sの精製鉱油)に,化学式1(化1)で示されるシス−1.4−ポリイソプレンを溶解して粘着性潤滑組成物を得た。実施例1の配合割合は,精製鉱油Aが95wt%であり,シス−1.4−ポリイソプレンが5wt%であった。
【化1】
【0017】
〔実施例2〕
実施例1における精製鉱油Aを潤滑油としての合成炭化水素油に置き換え,これに化学式1(化1)で示されるシス−1.4−ポリイソプレンを溶解して粘着性潤滑組成物を得た。実施例2の配合割合は,合成炭化水素油が50wt%であり,シス−1.4−ポリイソプレンが50wt%であった。
【0018】
〔実施例3〕
実施例1における精製鉱油Aを潤滑油としてのジエステル油(セバチン酸ジオクチル)に置き換え,これに化学式1で示されるシス−1.4−ポリイソプレンを溶解して粘着性潤滑組成物を得た。実施例3の配合割合は,ジエステル油が5wt%であり,シス−1.4−ポリイソプレンが95wt%であった。
【0019】
〔実施例4〕
実施例1で用いた精製鉱油Aを基油に,リチウム石けん12%でグリース化したものグリースAに,化学式2(化2)に示される水添ポリイソプレンを加えて攪拌し,混合したものを3本ロールで処理した。実施例4の配合割合は,グリースAが95wt%であり,水添ポリイソプレンが5wt%であった。ここで使用した水添ポリイソプレンは,化学式3(化3)で示されるように,シス−1.4−ポリイソプレンを90%水添したものであった。
【化2】
【化3】
【0020】
〔実施例5〕
実施例2で用いた合成炭化水素油に,疏水性超微粒子無水シリカAを加えて攪拌し,混合したものを3本ロールで処理したグリースBに,化学式2に示される水添ポリイソプレンを混合した。実施例5の配合割合は,グリースBが50wt%であり,水添ポリイソプレンが50wt%であった。
【0021】
〔実施例6〕
実施例3で用いたジエステル油に,疏水性超微粒子無水シリカBを加えて分散し,攪拌して混合したものを3本ロールで処理したグリースCに,化学式2に示される水添ポリイソプレンを混合した。実施例6の配合割合は,グリースCが5wt%であり,水添ポリイソプレンが95wt%であった。
【0022】
〔比較例1〕
ポリブテンA(平均分子量900〜1000)が100wt%であった。
【0023】
〔比較例2〕
ポリブテンB(平均分子量2300〜2800)が100wt%であった。
【0024】
〔比較例3〕
ポリブテンC(平均分子量1200〜1400)を基油に超微粒子シリカを添加し,攪拌して混合したものを3本ロールで処理したグリースDである。
【0025】
〔比較例4〕
比較例3で用いたグリースDにポリブテンBを添加し,攪拌して混合したものを3本ロールで処理したグリースEである。グリースEの配合割合は,グリースDが50wt%であり,ポリブテンBが50wt%であった。
【0026】
〔比較例5〕
グリースDにポリブテンAを添加し,攪拌して混合したものを3本ロールで処理したグリースFである。グリースFの配合割合は,グリースDが50wt%であり,ポリブテンAが50wt%であった。
【0027】
この発明による粘着性潤滑組成物の実施例1〜6と,比較例1〜5について,不混和ちょう度(25℃),見掛けトルク(g),低温トルク(−30℃,N−cm)として初期トルクと回転トルク,及び回転トルク試験〔25℃で手の感覚,−30℃で手の感覚,−30℃でのトルク(kgf-cm) ,及び−45℃でのトルク(kgf-cm) 〕について試験した結果を,表1及び表2に示す。
【表1】
【表2】
【0028】
これらの実施例1〜6及び比較例1〜5についての試験は,次のような条件で行った。
(1)回転トルク試験は,市販の回転ボリューム実機部品を使用した。
4φ×9mmのアルミニウム製の軸と,該軸を回転自在に支持する亜鉛製の軸受に,各実施例1〜6及び各比較例1〜5の各試料をそれぞれ塗布した。軸の回転速度は,1回転/1秒間の速度で回転させた。その時の作動確認を,25℃と−30℃の温度雰囲気で評価した。試験者は5人で判定した。試験の結果の作動状態を表1及び表2に示す。4人以上の人が作動状態を良好であると判断した時は良好であるとして○印で表し,また,3人以下の人が作動状態を良好であると判断した時は不良であるとして×印で表した。更に,トルクドライバによって,雰囲気温度,−30℃と−45℃のもとで,軸のトルクを計測した。
(2)見掛けトルク
30φ×10mmの外筒と内筒とに,各実施例1〜6及び各比較例1〜5の各試料をそれぞれ塗布し,内筒を10rpmで回転させ,ストレンジゲージで外筒の回転抵抗を測定した。その時の雰囲気温度25℃のもとで,引張り荷重(g)の初期値を測定した。
(3)ちょう度は,JIS K 2220に準じて測定した。
(4)低温トルクは,JIS K 2220に準じて測定した。
【0029】
【発明の効果】
この発明による粘着性潤滑組成物は,回転ボリューム部品に使用される潤滑油及び/又はグリースへの添加剤として,シス−1.4−ポリイソプレン又は水添イソプレンを用いて,該添加剤を潤滑油及び/又はグリースに混合したものであり,低温特性が非常に良好であり,回転ボリューム部品の操作や運転時に,−30℃の低温時から25℃の高温時までの温度変化に対してトルク変化が小さく適正なトルクを確保でき,また,摺動部材が相手材と密着し易い特性を有し,例えば,相対的に摺動する摺動軸や回転軸と軸受との間隙において安定した粘性を実現することができ,ポリブテン系組成物の粘着潤滑組成物に比較して,低温特性を悪化させない特性を有するものである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adhesive lubricating composition.
[0002]
[Prior art]
Conventionally, as an adhesive lubricating composition, there is a polybutene-based composition having good lubricity. A polybutene-based composition is known in which a polybutene oil is added to a lubricating oil or grease to impart tackiness, or a polybutene oil is used as a lubricating oil or a grease based on the polybutene oil (for example, Japanese Patent Publication No. 5-34394). No. publication).
[0003]
Japanese Unexamined Patent Publication No. 53-67061 discloses a lubricating grease. The lubricating grease is a low molecular weight polyisoprene in which the main chain in the polymer contains at least 70% of a 1.4-structure, and is obtained by hydrogenating a chain polymer having an average molecular weight of 150 to 5,000. It is based on synthetic oil.
[0004]
[Problems to be solved by the invention]
However, the polybutene-based composition in the adhesive lubricating composition has good lubricity, but is unfavorable in temperature characteristics, and in particular, has a defect that low-temperature characteristics are poor.
[0005]
The object of the present invention is to solve the above-mentioned problems. A specific substance is added to the base oil of the lubricating oil and / or grease, and the adhesiveness and lubricity are lower than those of the polybutene lubricating oil at a low temperature of −30 ° C. It is an object of the present invention to provide an adhesive lubricating composition for use in a rotary volume component that improves properties and constitutes a high-performance adhesive lubricant and / or adhesive grease.
[0006]
[Means for Solving the Problems]
The present invention relates to at least one lubricating oil and / or grease selected from refined mineral oil, synthetic hydrocarbon oil, polybutene oil, diester oil, silicone oil, fluorine oil, and polyoxyalkylene glycol oil of the following chemical formula 1. 1 to 95% by weight of cis-1.4-polyisoprene or hydrogenated polyisoprene of the following chemical formula 2 in which 90% of the cis-1.4-polyisoprene is hydrogenated is contained, and the grease contains a thickener component. The present invention relates to a self-adhesive lubricating composition containing 0.1 to 40% by weight and used for a rotating volume part that slides relatively. Chemical Formula 1 and Chemical Formula 2 is as follows.
[Chemical 1]
[Chemical 2]
However, m is a positive integer, and n is a positive integer.
The average molecular weight (Mv) is 10,000 to 100,000.
[0007]
The adhesive lubricating composition, the are added to the lubricating oil and / or grease is used for rotating the volume parts applied, the relative temperature change from low temperature of -30 ° C. until a high temperature of 25 ° C. it is possible to obtain a viscous adhesive properties of an operation feeling of the rotation volume parts.
[0008]
Since this adhesive lubricating composition is constructed as described above, the low temperature characteristics of adhesiveness and lubricity are very good, the torque change during operation or operation of the rotary volume component is small, and the sliding The adhesion between the moving member and the mating member becomes good, and a stable viscosity can be imparted between the sliding members. Therefore, this adhesive lubricating composition is preferably used as an adhesive lubricant in equipment such as automobiles and precision machinery, and in particular, has a certain stable temperature characteristic, lubricity, torque even at a low temperature of −30 ° C. Therefore, it is possible to maintain good characteristics such as a silencing effect and operability feeling.
[0009]
The additives of cis-1.4-polyisoprene and hydrogenated polyisoprene in this adhesive lubricating composition are substances that exhibit rubber-like properties at room temperature, and are added when used for lubricant applications. Although it has not been used as an agent, when used as a grease, as described above, it is a composition that improves the characteristics such as sticky operation feeling by combining with a specific base oil. Can be obtained.
[0010]
This adhesive lubricating composition is composed of cis-1.4-polyisoprene represented by chemical formula 1 (chemical formula 1) of the first component, or hydrogenated polyisoprene represented by chemical formula 2 (chemical formula 2) (average molecular weight from 10,000). 1 to 95% by weight of 100000) is dispersed and dissolved in lubricating oil or grease of petroleum hydrocarbon oil, synthetic oil (diester oil, synthetic hydrocarbon oil , glycol oil, etc.) Obtainable. The average molecular weight of these additives is calculated from the intrinsic viscosity in toluene at 30 ° C.
[0011]
Furthermore, the adhesive grease can be easily obtained by converting the above-mentioned adhesive lubricating oil into grease. As a thickener component of the grease, a commonly used thickener such as lithium soap, bentonite, silica, urea and the like is preferable as the thickener of the adhesive lubricating composition according to the present invention. If the content of the thickener is 0.1 wt% to 40 wt%, it can be greased.
[0012]
Moreover, you may add antioxidant, EP agent (extreme pressure agent), and a solid lubricant to this adhesive lubricating composition as needed. The consistency of grease is No. If it is about 000-4, there is no problem in use. For example, amine-based, phenol-based, and metal salt- based antioxidants can be used. Further, extreme pressure agents, for example, can be used molybdenum disulfide, or hexa chloro-stearic like.
[0013]
This adhesive lubricating composition can be obtained by simply mixing the component raw materials, by sufficiently mixing by performing pressure heat treatment, etc., or by using a three-roll, colloid mill or the like if it is an adhesive grease. Can be manufactured.
[0014]
The amount of cis-1.4-polyisoprene or hydrogenated polyisoprene added to the adhesive lubricating composition is suitably in the range of 1 to 95% by weight in the total composition. If the added amount is less than 1% by weight to the adhesive lubricating compositions, do not it is possible to get a sufficient adhesiveness, and when the amount exceeds 95 wt%, the adhesive property becomes stronger, The workability of the equipment is poor, making it difficult to use and not practical.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Examples of the adhesive lubricating composition according to the present invention will be described below. Moreover, in order to compare the characteristics of Examples 1 to 6 of the adhesive lubricating composition according to the present invention, Comparative Examples 1 to 5 of the adhesive lubricating composition were made as comparative examples.
[0016]
[Example 1]
Refined mineral oil A (40 ° C., purified mineral oil 140 mm 2 / s) as a lubricant to obtain a tacky lubricating composition by dissolving the cis-1,4-polyisoprene emission represented by the chemical formula 1 (Formula 1) . The blending ratio of Example 1 was 95% by weight of refined mineral oil A and 5% by weight of cis-1.4-polyisoprene.
[Chemical 1]
[0017]
[Example 2]
The refined mineral oil A in Example 1 was replaced with a synthetic hydrocarbon oil as a lubricating oil, and cis-1.4-polyisoprene represented by Chemical Formula 1 (Chemical Formula 1) was dissolved therein to obtain an adhesive lubricating composition. . The blending ratio of Example 2 was 50 wt% for synthetic hydrocarbon oil and 50 wt% for cis-1.4-polyisoprene.
[0018]
Example 3
The refined mineral oil A in Example 1 was replaced with a diester oil (dioctyl sebacate) as a lubricating oil, and cis-1.4-polyisoprene represented by Chemical Formula 1 was dissolved therein to obtain an adhesive lubricating composition. The blending ratio of Example 3 was 5 wt% for diester oil and 95 wt% for cis-1.4-polyisoprene.
[0019]
Example 4
The refined mineral oil A used in Example 1 was greased with 12% lithium soap. To the grease A, the hydrogenated polyisoprene represented by the chemical formula 2 (Chemical formula 2) was added, stirred, and mixed. Treated with 3 rolls. The blending ratio of Example 4 was 95 wt% for grease A and 5 wt% for hydrogenated polyisoprene. Here hydrogenated polyisoprene emissions used, as represented by the chemical formula 3 (Chemical Formula 3), cis-1,4-polyisoprene was obtained by 90% hydrogenated.
[Chemical 2]
[Chemical 3]
[0020]
Example 5
Add water-absorbing ultrafine anhydrous silica A to the synthetic hydrocarbon oil used in Example 2 and stir and mix the mixture. did. The blending ratio of Example 5 was 50 wt% for grease B and 50 wt% for hydrogenated polyisoprene.
[0021]
Example 6
To the grease C obtained by adding water-dispersible ultrafine anhydrous silica B to the diester oil used in Example 3 and dispersing, stirring and mixing the resulting mixture with three rolls, hydrogenated polyisoprene represented by the chemical formula 2 is added. Mixed. The blending ratio of Example 6 was 5 wt% for grease C and 95 wt% for hydrogenated polyisoprene.
[0022]
[Comparative Example 1]
Polybutene A (average molecular weight 900-1000) was 100 wt%.
[0023]
[Comparative Example 2]
Polybutene B (average molecular weight 2300-2800) was 100 wt%.
[0024]
[Comparative Example 3]
Polybutene C to (average molecular weight 1200 to 1400) the base oil was added ultrafine particles silica mosquito, a grease D treated with 3-roll a mixture with stirring.
[0025]
[Comparative Example 4]
Grease E obtained by adding polybutene B to grease D used in Comparative Example 3 and stirring and mixing it with a three-roll mill. The blending ratio of grease E was 50 wt% for grease D and 50 wt% for polybutene B.
[0026]
[Comparative Example 5]
Grease F obtained by adding polybutene A to grease D and stirring and mixing it with three rolls. The blending ratio of grease F was 50 wt% for grease D and 50 wt% for polybutene A.
[0027]
For Examples 1 to 6 and Comparative Examples 1 to 5 of the adhesive lubricating composition according to the present invention, the immiscible penetration (25 ° C.), apparent torque (g), and low temperature torque (−30 ° C., N-cm) Initial torque, rotational torque, and rotational torque test (hand feeling at 25 ° C, hand feeling at -30 ° C, torque at -30 ° C (kgf-cm), and torque at -45 ° C (kgf-cm) Table 1 and Table 2 show the results of the test.
[Table 1]
[Table 2]
[0028]
The tests for Examples 1 to 6 and Comparative Examples 1 to 5 were performed under the following conditions.
(1) In the rotational torque test, commercially available rotating volume actual machine parts were used.
Each sample of Examples 1 to 6 and Comparative Examples 1 to 5 was applied to a 4φ × 9 mm aluminum shaft and a zinc bearing that rotatably supports the shaft. The shaft was rotated at a speed of 1 rotation / sec. The operation confirmation at that time was evaluated in a temperature atmosphere of 25 ° C. and −30 ° C. Five testers were judged. Tables 1 and 2 show the operating states of the test results. When four or more people judge that the operating state is good, it is marked as good, and when three or less people judge that the working state is good, it is judged as bad. Expressed with a mark. Furthermore, the torque of the shaft was measured with a torque driver at ambient temperatures of −30 ° C. and −45 ° C.
(2) Apparent torque Each sample of each of Examples 1 to 6 and Comparative Examples 1 to 5 was applied to an outer cylinder and an inner cylinder of 30φ × 10 mm, and the inner cylinder was rotated at 10 rpm. The rotational resistance of the cylinder was measured. The initial value of the tensile load (g) was measured at an ambient temperature of 25 ° C.
(3) The consistency was measured according to JIS K 2220.
(4) The low temperature torque was measured according to JIS K 2220.
[0029]
【The invention's effect】
The adhesive lubricating composition according to the present invention lubricates the additive using cis-1.4-polyisoprene or hydrogenated isoprene as an additive to the lubricating oil and / or grease used for rotating volume parts. It is mixed with oil and / or grease and has very good low-temperature characteristics. Torque against temperature changes from a low temperature of -30 ° C to a high temperature of 25 ° C during operation and operation of rotating volume parts. Appropriate torque can be ensured with little change, and the sliding member has the characteristic that it can easily come into close contact with the mating material. Compared with the adhesive lubricating composition of a polybutene-based composition , the low-temperature characteristics are not deteriorated.
Claims (2)
平均分子量(Mv)は10000から100000である。 One or more kinds of lubricating oils and / or greases selected from refined mineral oil, synthetic hydrocarbon oil, polybutene oil, diester oil, silicone oil, fluorine oil, and polyoxyalkylene glycol oil are added with cis-1. 1 to 95% by weight of 4-polyisoprene or hydrogenated polyisoprene of the following chemical formula 2 obtained by hydrogenating 90% of the cis-1.4-polyisoprene, and the grease contains 0.1 to 10% thickener component. An adhesive lubricating composition containing 40% by weight and used for a relatively sliding rotary volume part .
The average molecular weight (Mv) is 10,000 to 100,000.
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JP14430299A JP4693946B2 (en) | 1999-05-25 | 1999-05-25 | Adhesive lubricating composition |
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JP14430299A JP4693946B2 (en) | 1999-05-25 | 1999-05-25 | Adhesive lubricating composition |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS502A (en) * | 1972-11-13 | 1975-01-06 | ||
JPS5085605A (en) * | 1973-11-26 | 1975-07-10 | ||
JPS6128594A (en) * | 1983-03-09 | 1986-02-08 | ユニロイヤル,インコ−ポレ−テツド | Hydrogenated polyisoprene lubricant composition |
JPS61141795A (en) * | 1985-12-14 | 1986-06-28 | Showa Shell Sekiyu Kk | High-dropping point lithium complex grease composition improved in sound characteristics |
JPS62280295A (en) * | 1986-05-28 | 1987-12-05 | Kuraray Co Ltd | Lubricant composition |
JPH03103498A (en) * | 1989-09-18 | 1991-04-30 | Dai Ichi Kogyo Seiyaku Co Ltd | Lubricating oil composition |
JPH1135963A (en) * | 1997-07-17 | 1999-02-09 | Nippon Kouyu:Kk | Lubricating grease composition |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US4922045A (en) * | 1987-08-03 | 1990-05-01 | Texaco Inc. | Diesel lubricating oil consumption control additives |
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502A (en) * | 1972-11-13 | 1975-01-06 | ||
JPS5085605A (en) * | 1973-11-26 | 1975-07-10 | ||
JPS6128594A (en) * | 1983-03-09 | 1986-02-08 | ユニロイヤル,インコ−ポレ−テツド | Hydrogenated polyisoprene lubricant composition |
JPS61141795A (en) * | 1985-12-14 | 1986-06-28 | Showa Shell Sekiyu Kk | High-dropping point lithium complex grease composition improved in sound characteristics |
JPS62280295A (en) * | 1986-05-28 | 1987-12-05 | Kuraray Co Ltd | Lubricant composition |
JPH03103498A (en) * | 1989-09-18 | 1991-04-30 | Dai Ichi Kogyo Seiyaku Co Ltd | Lubricating oil composition |
JPH1135963A (en) * | 1997-07-17 | 1999-02-09 | Nippon Kouyu:Kk | Lubricating grease composition |
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