JPH0593193A - Lubricating grease composition - Google Patents
Lubricating grease compositionInfo
- Publication number
- JPH0593193A JPH0593193A JP1573491A JP1573491A JPH0593193A JP H0593193 A JPH0593193 A JP H0593193A JP 1573491 A JP1573491 A JP 1573491A JP 1573491 A JP1573491 A JP 1573491A JP H0593193 A JPH0593193 A JP H0593193A
- Authority
- JP
- Japan
- Prior art keywords
- grease
- tricalcium phosphate
- oil
- grease composition
- resistance
- 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.)
- Granted
Links
Landscapes
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、潤滑グリース組成物に
関するものである。特に、本発明は、耐熱性および機械
的安定性の優れた潤滑グリース組成物に関するものであ
る。FIELD OF THE INVENTION The present invention relates to a lubricating grease composition. In particular, the present invention relates to a lubricating grease composition having excellent heat resistance and mechanical stability.
【０００２】[0002]
【従来の技術】従来、潤滑グリース組成物の極圧特性を
改良する目的で、油不溶性リン化合物と油溶性いおう化
合物とを併用したグリース組成物は公知である（特開昭
５４−３４３０４号）。しかしながら、油不溶性リン酸
化合物を単独で使用した場合には所望の極圧性の向上は
達成されなかった。2. Description of the Related Art Heretofore, a grease composition in which an oil-insoluble phosphorus compound and an oil-soluble sulfur compound are used in combination is known for the purpose of improving extreme pressure characteristics of a lubricating grease composition (JP-A-54-34304). . However, the desired improvement in extreme pressure properties was not achieved when the oil-insoluble phosphate compound was used alone.
【０００３】[0003]
【発明が解決しようとする課題及び解決するための手
段】従来、滴点が高く、耐熱性にすぐれしかも常温から
高温における機械的安定性、耐荷重性や耐摩耗性がすぐ
れた潤滑グリース組成物が要望されていた。本発明は、
リン酸三カルシウムを配合したグリース組成物が極めて
すぐれた性質を有することを見出したことに基ずくもの
である。[Problems to be Solved by the Invention and Means for Solving the Problems] A lubricating grease composition having a high dropping point, excellent heat resistance, and excellent mechanical stability, load resistance and wear resistance at room temperature to high temperature. Was requested. The present invention is
This is based on the finding that a grease composition containing tricalcium phosphate has extremely excellent properties.
【０００４】すなわち、本発明は、鉱油または合成潤滑
油と増ちょう剤と、上記鉱油または合成潤滑油に対して
２ないし４０重量％の式 Ca3(PO4)2で表わされるリン酸
三カルシウムとを混練捏和してなることを特徴とする潤
滑グリース組成物である。That is, the present invention relates to a mineral oil or synthetic lubricating oil, a thickener, and 2 to 40% by weight of the above-mentioned mineral oil or synthetic lubricating oil, the tricalcium phosphate represented by the formula Ca 3 (PO 4 ) 2. And a kneading and kneading mixture.
【０００５】本発明によるリン酸三カルシウムを配合し
たグリース組成物は高滴点をもち、高温における酸化安
定性にすぐれ、同時に耐荷重性や耐摩耗性にも極めてす
ぐれているものである。また、リン酸三カルシウムは鉱
油及び各種の合成潤滑油に対し、親和性に富み、高温用
グリースが容易に製造できること、価格が安いことなど
多くの利点を有している。The grease composition containing tricalcium phosphate according to the present invention has a high dropping point and is excellent in oxidative stability at high temperatures and, at the same time, is extremely excellent in load resistance and abrasion resistance. In addition, tricalcium phosphate has many advantages such as high affinity with mineral oils and various synthetic lubricating oils, easy production of high temperature grease, and low price.
【０００６】本発明のグリースに用いる基油としては、
通常の潤滑油の粘度範囲（１００℃、２−４０cst）の
ものであればすべて使用できる。例えば、ナフテン基、
パラフィン基及び混合基油等鉱物潤滑油、α−オレフィ
ンポリマー系合成油、セバシン酸ジオクチルのごとき二
塩基酸のジエステル、トリメチロールプロパン、ペンタ
エリスリトール等のポリオールエステル、シリコーン
油、ポリエーテル系合成油があげられる。The base oil used in the grease of the present invention is
Any lubricant can be used as long as it has a normal lubricating oil viscosity range (100 ° C., 2-40 cst). For example, a naphthene group,
Mineral lubricating oils such as paraffinic and mixed base oils, α-olefin polymer synthetic oils, diesters of dibasic acids such as dioctyl sebacate, trimethylolpropane, polyol esters such as pentaerythritol, silicone oils and polyether synthetic oils can give.
【０００７】リン酸三カルシウムをグリースに使用する
場合には、鉱油または合成潤滑油にたいして２ないし４
０重量％、好ましくは５ないし３０重量％、さらに好ま
しくは、１０ないし２５重量％で使用する。リン酸三カ
ルシウムの配合量が２重量％以下の場合には、滴点の上
昇および例えばせん断安定性、耐荷重性、耐摩耗性など
の改良の効果が得られない。また、４０重量％以上の場
合には粘稠になりすぎて使用が困難である。When tricalcium phosphate is used in the grease, it is 2 to 4 for mineral oil or synthetic lubricating oil.
It is used in an amount of 0% by weight, preferably 5 to 30% by weight, more preferably 10 to 25% by weight. When the content of tricalcium phosphate is 2% by weight or less, the effect of increasing the dropping point and improving shear stability, load resistance, wear resistance and the like cannot be obtained. If it is 40% by weight or more, it becomes too viscous and difficult to use.
【０００８】また、酸化防止剤や極圧剤がなくとも酸化
安定性や耐荷重性にすぐれているが、通常、グリースに
使用されている各種添加剤例えば酸化防止剤、極圧剤、
防錆剤、粘着剤と容易に適合する。Further, although it is excellent in oxidation stability and load resistance even without an antioxidant or an extreme pressure agent, various additives usually used in grease such as an antioxidant, an extreme pressure agent,
Easily compatible with rust preventives and adhesives.
【０００９】リン酸三カルシウムをより効果的にグリー
ス中に分散させるにはアルキルトリメチルアンモニウム
クロライド、ポリオキシエチレンドデシルアミン等であ
らからじめ表面処理しておくか、これらの界面活性剤を
少量添加すればよい。また、ベントングリースのように
アセトン、プロピレンカーボネートなどの分散剤を用い
てもよい。リン酸三カルシウムをグリースに使用する場
合には、その必要量を加えて３本ロールまたはコロイド
ミル、あるいは更に適当な方法で混練捏和して処理する
ことによってなめらかなグリース状を呈する。In order to disperse tricalcium phosphate in the grease more effectively, the surface treatment is carried out beforehand with alkyltrimethylammonium chloride, polyoxyethylene dodecylamine or the like, or a small amount of these surfactants is added. do it. A dispersant such as acetone or propylene carbonate such as Benton grease may be used. When tricalcium phosphate is used for grease, a necessary amount of tricalcium phosphate is added and kneaded and kneaded by a three-roll mill or a colloid mill, or by an appropriate method to give a smooth grease form.
【００１０】[0010]
【実施例】つぎに実施例を掲げて本発明を説明するが、
これに限定されるものではない。表１に示す配合割合に
てリン酸三カルシウムを市販の高温用グリースに加えて
グリースを作り、性状を比較した結果を表１に示した。EXAMPLES The present invention will be described below with reference to Examples.
It is not limited to this. Table 1 shows the results of comparing the properties by adding tricalcium phosphate to a commercially available high temperature grease at the compounding ratio shown in Table 1 to make a grease.
【００１１】[0011]
【表１】 [Table 1]
【００１２】表１中の高温用グリースは、 Ａ．市販ウレアグリース２号、昭和シエル石油製 Ｂ．市販ウレアグリース２号、日本石油製 Ｃ．市販ナトリウムテレフタラメートグリース２号、昭
和シエル石油製 である。The high temperature greases in Table 1 are: Commercially available urea grease No. 2, Showa Ciel B.B. Commercially available urea grease No. 2, C.I. Commercially available sodium terephthalamate grease No. 2, manufactured by Showa Ciel Sekiyu.
【００１３】薄膜加熱試験方法はＪＩＳ Ｚ ０２３６
湿潤テストパネルの５０×７０mm面積部分にグリース
を０．５ｇ片面塗布し（膜厚１５０μｍ）、加熱試験を
行ない、グリース状態の観察と蒸発減量とを測定した。 グリース状態： ○：淡茶褐色、 △：茶褐色 ×：濃茶褐色The thin film heating test method is JIS Z 0236.
0.5 g of grease was applied on one side of a 50 × 70 mm area of the wet test panel (on a film thickness of 150 μm), and a heating test was performed to observe the grease state and measure the evaporation loss. Grease state: ○: light brown, △: brown ×: dark brown
【００１４】[0014]
【発明の効果】本発明の効果は次のとおりである。 (1) 本発明のリン酸三カルシウムを添加したグリース
は、滴点が高く耐熱性にすぐれている。 (2) 本発明のリン酸三カルシウムを添加したグリースは
高温における蒸発減量が極めて少ない。The effects of the present invention are as follows. (1) The grease of the present invention to which tricalcium phosphate is added has a high dropping point and excellent heat resistance. (2) The grease to which the tricalcium phosphate of the present invention is added has an extremely small evaporation loss at high temperatures.
【手続補正書】[Procedure amendment]
【提出日】平成３年２月１５日[Submission date] February 15, 1991
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】 薄膜加熱試験方法はＪＩＳ Ｚ ０２３
６ 湿潤テストパネルの５０×７０ｍｍ面積部分にグリ
ースの０．５ｇを片面塗布し（膜厚１５０μｍ）、加熱
試験を行い、グリース状態の観察と蒸発減量とを測定し
た。 グリース状態： ○：淡茶褐色、 △：茶褐色、 ×：濃茶褐色 次に、鉱油にリチウムヒドロキシステアレートを加えて
製造したグリースに表２に示した添加剤および本願のリ
ン酸三カルシウムをそれぞれ加え、混練捏和して製造し
たグリースの滴点を測定し表２に示した。The thin film heating test method is JIS Z 023.
6 0.5 g of grease was applied to one side of a 50 × 70 mm area of the wet test panel (film thickness 150 μm), and a heating test was performed to observe the grease state and measure the evaporation loss. Grease state: ◯: light brown, Δ: dark brown, ×: dark brown Next, the additives shown in Table 2 and tricalcium phosphate of the present application were added to the grease produced by adding lithium hydroxystearate to mineral oil, The dropping point of the grease produced by kneading and kneading was measured and shown in Table 2.
【表２】 表２の比較例２ないし４では無添加のグリース（比較例
１）と比較して滴点の向上が認められたが、リン酸三カ
ルシウムを添加した実施例７のグリースでは滴点が上昇
し、耐熱性が向上したことが示された。[Table 2] In Comparative Examples 2 to 4 in Table 2, an improvement in the dropping point was recognized as compared with the grease without addition (Comparative Example 1), but the dropping point was increased in the grease of Example 7 to which tricalcium phosphate was added. It was shown that the heat resistance was improved.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 後藤 文夫 東京都千代田区霞ケ関３丁目２番５号 昭 和シエル石油株式会社内 (72)発明者 沖 ▲みよし▼ 東京都千代田区霞ケ関３丁目２番５号 昭 和シエル石油株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Fumio Goto 3-2-5 Kasumigaseki, Chiyoda-ku, Tokyo Within Showa Ciel Oil Co., Ltd. (72) Inventor Oki ▲ Miyoshi ▼ 3-2 Kasumigaseki, Chiyoda-ku, Tokyo No. 5 within Showa Ciel Oil Co., Ltd.
Claims (1)
上記鉱油または合成潤滑油に対して２ないし４０重量％
の式 Ca3(PO4)2で表わされるリン酸三カルシウムとを混
練捏和してなることを特徴とする潤滑グリース組成物。1. A mineral oil or a synthetic lubricating oil and a thickener,
2 to 40% by weight based on the above mineral oil or synthetic lubricating oil
The lubricating grease composition is characterized by being kneaded and kneaded with tricalcium phosphate represented by the formula Ca 3 (PO 4 ) 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3015734A JPH0639590B2 (en) | 1986-08-04 | 1991-01-17 | Lubricating grease composition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18187586A JPS6339989A (en) | 1986-08-04 | 1986-08-04 | Lubricating grease compositon |
| JP3015734A JPH0639590B2 (en) | 1986-08-04 | 1991-01-17 | Lubricating grease composition |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18187586A Division JPS6339989A (en) | 1986-08-04 | 1986-08-04 | Lubricating grease compositon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0593193A true JPH0593193A (en) | 1993-04-16 |
| JPH0639590B2 JPH0639590B2 (en) | 1994-05-25 |
Family
ID=26351932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3015734A Expired - Lifetime JPH0639590B2 (en) | 1986-08-04 | 1991-01-17 | Lubricating grease composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639590B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011021150A (en) * | 2009-07-17 | 2011-02-03 | Showa Shell Sekiyu Kk | Lubricant composition |
| JP2011021149A (en) * | 2009-07-17 | 2011-02-03 | Showa Shell Sekiyu Kk | Lubricant composition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US830710A (en) * | 1905-10-20 | 1906-09-11 | Theodore M Guest | Parer. |
| US4107058A (en) * | 1977-08-19 | 1978-08-15 | Exxon Research & Engineering Co. | Pressure grease composition |
| JPS62218493A (en) * | 1986-02-18 | 1987-09-25 | アモコ コ−ポレ−シヨン | Polyurea grease reduced in oil separation |
| JPS6339989A (en) * | 1986-08-04 | 1988-02-20 | Showa Shell Sekiyu Kk | Lubricating grease compositon |
| JPH0465119A (en) * | 1990-07-05 | 1992-03-02 | Fujitsu Ltd | Heat treatment device for manufacture of semiconductor device |
-
1991
- 1991-01-17 JP JP3015734A patent/JPH0639590B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US830710A (en) * | 1905-10-20 | 1906-09-11 | Theodore M Guest | Parer. |
| US4107058A (en) * | 1977-08-19 | 1978-08-15 | Exxon Research & Engineering Co. | Pressure grease composition |
| JPS5434304A (en) * | 1977-08-19 | 1979-03-13 | Exxon Research Engineering Co | Improved extremeepressure grease compositions |
| JPS62218493A (en) * | 1986-02-18 | 1987-09-25 | アモコ コ−ポレ−シヨン | Polyurea grease reduced in oil separation |
| JPS6339989A (en) * | 1986-08-04 | 1988-02-20 | Showa Shell Sekiyu Kk | Lubricating grease compositon |
| JPH0465119A (en) * | 1990-07-05 | 1992-03-02 | Fujitsu Ltd | Heat treatment device for manufacture of semiconductor device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011021150A (en) * | 2009-07-17 | 2011-02-03 | Showa Shell Sekiyu Kk | Lubricant composition |
| JP2011021149A (en) * | 2009-07-17 | 2011-02-03 | Showa Shell Sekiyu Kk | Lubricant composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0639590B2 (en) | 1994-05-25 |
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