JPH03131692A - シリコーングリース組成物 - Google Patents

シリコーングリース組成物

Info

Publication number
JPH03131692A
JPH03131692A JP1269834A JP26983489A JPH03131692A JP H03131692 A JPH03131692 A JP H03131692A JP 1269834 A JP1269834 A JP 1269834A JP 26983489 A JP26983489 A JP 26983489A JP H03131692 A JPH03131692 A JP H03131692A
Authority
JP
Japan
Prior art keywords
formula
weight
formulas
parts
silicone grease
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
Application number
JP1269834A
Other languages
English (en)
Other versions
JPH0742472B2 (ja
Inventor
Masahiko Minemura
正彦 峯村
Takayuki Takahashi
孝行 高橋
Satoshi Kuwata
桑田　敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin-Etsu Chemical Co Ltd
Original Assignee
Shin-Etsu Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shin-Etsu Chemical Co Ltd filed Critical Shin-Etsu Chemical Co Ltd
Priority to JP1269834A priority Critical patent/JPH0742472B2/ja
Priority to US07/596,395 priority patent/US5192458A/en
Priority to DE69006163T priority patent/DE69006163T2/de
Priority to EP90119837A priority patent/EP0423724B1/en
Publication of JPH03131692A publication Critical patent/JPH03131692A/ja
Publication of JPH0742472B2 publication Critical patent/JPH0742472B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • C—CHEMISTRY; METALLURGY
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    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/50—Lubricating compositions characterised by the base-material being a macromolecular compound containing silicon
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    • C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
    • C10M117/02—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
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    • C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
    • C10M117/02—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
    • C10M117/04—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen containing hydroxy groups
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
    • C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
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    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
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    • C10M2201/06—Metal compounds
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/1225—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic used as thickening agent
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    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C10M2207/1265—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic used as thickening agent
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    • C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
    • C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明はシリコーングリースに関し、特に極圧潤滑特性
に優れたシリコーングリースに関する。
（従来の技術） シリコーン油、特にジメチルシリコーン油或いはメチル
フェニルシリコーン油は、粘度温度特性、耐熱耐酸化性
、剪断安定性、化学的安定性等に優れていることから、
これらのシリコーン油を基油としたシリコーングリース
も優れた温度特性、耐熱性、耐酸化性及び化学的安定性
を示し、従来から潤滑用として賞月されている。
しかしながら、これらのシリコーン油は鉱物油や合成油
に比べて鋼対鋼等の境界潤滑性が貧弱なために、高速、
高荷重での使用には適さず、その用途には大きな制限が
ある。このため、シリコーン油に脂肪酸やその誘導体、
塩素化合物、弗素化合物、リン化合物、アミン化合物等
の油性向上剤や極圧添加剤を加えてその境界潤滑性を改
良することが試みられており、例えば塩素化パラフィン
やジアルキルクロレンデートを添加する方法（特公昭５
１−３８８６４号公報参照）や、ｌ、２゜３、　４．　
７．　８．　９．　１０．　１３．　１３．　１４゜１
４−ドデカクロロ−１，４，４ａ、５，６，６ａ、７，
１０．１０ａ、１１，１２，１２８−ドデカヒドロ−１
，４ｉ７．１０−ジメタノジベンゾ（ａ、ｅ：ｌシクロ
オクテンを添加する方法（特開昭６２−２８３１９６号
）等が提案されている。
（発明が解決しようとする課題） しかしながら、これらの改良によっても未だ十分な境界
潤滑性を得るにはいたっておらず、長鎖アルキル基含有
シリコーン油をベースとしたグリース（米国特許第３，
５７９，４６７号、同第３゜６７３．０８９号）の場合
でも、低荷重域での潤滑性は良いものの、高荷重域につ
いては満足な潤滑性が得られず、更に改善が望まれてい
た。
本発明者等は、係る従来の欠点を解決すべく鋭意検討し
た結果、長鎖アルキル基含有シリコーン油をベースとし
たシリコーングリースに有機モリブデン化合物を添加し
た場合には、高荷重域についての潤滑性が著しく改善さ
れることを見出し本発明に到達した。
従って本発明の目的は、耐熱耐寒性、耐酸化性、化学的
安定性、低荷重潤滑性に優れると共に、極圧潤滑性にも
優れたシリコーングリース組成物を提供することにある
。
（課題を解決するための手段） 本発明の上記の目的は、 ■一般式 ％式％ で表わされ、２５°Ｃにおける粘度が１０〜１０゜００
０ｃＳｔである長鎖アルキル基含有オルガノポリシロキ
サン：　　　　　　　１００重量部、■増稠剤　　　　
　　　　　　１〜６０重量部及び ■有機モリブデン化合物：　　５〜３０重量部を主成分
とすることを特徴とするシリコーングリース組成物によ
って達成された。
上記一般式 ％式％ において、Ｒ１は炭素数４〜２０、好ましくは６〜１４
より成る一価の飽和又は不飽和の炭化水素基である。Ｒ
ｔは炭素数１〜３より成る一価の飽和又は不飽和の炭化
水素基及び置換又は非置換のアリール基の中から選ばれ
る一価の基であり、具体例としては、メチル基、エチル
基、プロピル基、トリフロロプロピル基、フェニル基、
クロロフェニル基等を挙げることができるが、これらの
中でも特にメチル基が好ましい。Ｒ３は式 によって表わされる基の中から選択されるヒンダードフ
ェノール構造を持つ一価の有機基であって、０．３≦ａ
≦１．０．１゜０≦ｂ≦２．０．０≦Ｃ≦０．０５、ａ
＋ｂ＋ｃは１．８〜２．３、ｎは１〜５である。
ここでＲ１の炭素数が４より小さいと充分な潤滑性向上
効果が得られず、２０より大きいと低温特性が低下しグ
リース特性として好ましくない。
又、ａが０．　３より小さいと得られるグリース組成物
に充分な潤滑性が付与されず、１，０より大きいとグリ
ース組成物の低温特性が低くなる。
一方、ｂが１．０より小さいと得られるグリース組成物
の低温特性が低下し、２．０より大きいと充分な潤滑性
能が得られない。Ｃは０．０５以下であるが、これは、
０．０５より大きくても耐熱性の大幅向上は望めないし
、経済的にも不利であるためである。一方、ヒンダード
フェノール含有基を導入することによって長鎖アルキル
基含有オルガノポリシロキサンの耐熱性を向上させるこ
とができるのでＯでないことが好ましい。
本発明で使用する第２成分の増稠剤は、当業者が一般に
使用するものの中から適宜選択することができ、特に限
定するものではない、その具体例としては、高級脂肪酸
の金属塩、シリカ、ウレア、酸化亜鉛、アルミナ等が挙
げられる。これらの中でも高級脂肪酸の金属塩が特に好
ましく、ミＩＪステン酸リチウム、ステアリン酸１八チ
ウム及び１２−ヒドロキシステアリン酸リチウムが好ま
しい。
増稠剤は、グリースのチキソ性を高めるために添加する
ものであるから、ベースオイルの粘度と目的とする硬さ
（稠度）によって変えることができ特に限定されるもの
ではないが、通常、１〜６０重量部とすることが好まし
く、特に１０〜３０重量部とすることが好ましい。
本発明で使用する第３成分の有機モリブデン化合物は、
シリコーングリースに極圧潤滑性を付与する作用を有す
るものである。好ましい有機モリブデン化合物としては
モリブデンジチオカーバメート或いはモリブデンジチオ
フォスフェートを挙げることができるが、特に好ましい
ものとしてモリブデンジチオカーバメート（商品名＝サ
クラルーブ５００及びサクラループ６００（旭電化工業
Ｃｇ４製））を挙げることができる。有機モリブデン化
合物の添加量としては、３〜３０！ｌｉ１部とすること
が好ましく、特に５〜１５重量部とすることが好ましい
。
この添加量が５重量部より少ないと、期待する極圧潤滑
性が不十分であり、３０重量部より多くしても、極圧潤
滑性能の大幅な向−ヒが得られないばかりか、経済的に
不利となる。
本発明においては、以上の３成分に加えて、従来から添
加することができるものとして知られている各種の添加
剤、即ち高級脂肪酸、油脂、エステル油等の油性剤、ア
ミン系化合物、フェノール系化合物、イオウ化合物、リ
ン化合物等の酸化防止剤及び有機モリブデン以外の極圧
添加剤等をグリースの性能を損なわない範囲で適宜添加
しても良いことは当然である。
本発明のシリコーングリースは、公知の方法によって以
上の素材を均一に攪拌分散せしめることによって容易に
得ることができる。
（発明の効果） 上記の如くして得られた本発明のグリースは長鎖アルキ
ル基含有オルガノポリシロキサンをベースオイルとして
いるために耐熱・耐寒性、耐酸化性、化学的安定性及び
低荷重潤滑性に優れるのみならず、特定量の有機モリブ
デン化合物を含有させることにより高荷重潤滑性が改善
され、鋼−網間の極圧潤滑性に対しても優れた特性を有
する。
（実施例） 以下、本発明を実施例に基づいて更に説明するが本発明
はこれによって限定されるものではない。
実施例１〜５゜ （Ｃ，。Ｈ□）。、４ｘ（ＣＨｓ）＋、ｉｚで表される
デシル（３，５−ジ−ｔ−ブチル−４−ヒドロキシフェ
ニルプロピル）メチルシリコ−７（Ａ）（２５°Ｃ粘度
、３５０ｃＳｔ）１００重量部と、ステアリン酸リチウ
ム３０重量部を、１８０〜２１０°Ｃで２時間加熱攪拌
した後これを室温まで冷却し、次いでモリブデンジチオ
カーバメート（商品名：サクラルーブ６００（旭電化工
業■製））５〜３０重量部を加えて均一に混合し、目的
とするアルキル変性シリコーングリースを得た。
得られたシリコーングリースについて、四球潤滑試験を
行い、１，５００γｐｍ／１分間／室温の条件下におけ
る融着荷重及び１，０００γｐｍ／　４０　ｋ　ｇ　ｆ
　／　５分間／室温の条件下における摩耗痕直径につい
て測定したところ、 表−１の結果 が得られた。
／ ／ ＼ ／ ／ ／ ／ 実施例６゜ デシル（３，５−ジーＬ−ブチルー４−ヒドロキシフェ
ニルプロピル）メチルシリコーン（Ａ）の代わりに、（
Ｃ，。■よ、）。、　ｎｚｓ（ＣＨ２）　＋、　ｂｚｓ
ｉｏｏ、　９７８で表されるデシルメチルシリコーン（
Ｂ）（２５℃の粘度：４００ｃＳｔ）を使用した他は、
実施例１と全く同様にしてシリコーングリースを得、実
施例１と同様に融着荷重及び摩耗痕直径を測定した結果
は表−１に示した通りである。
比較例１〜２゜ モリブデンジチオカーバメート量を凍らした他は、実施
例１と全く同様にして、アルキル変性シリコーングリー
スを得、同様にして融着荷重及び摩耗痕直径を測定し、
表−１の結果を得た。
表−１の結果は、有機モリブデン化合物の量が５重量部
以上になると急激に、融着荷重が高くなり、極圧潤滑性
がよくなることを実証するものである。
比較例３゜ デシル（３，５−ジーし−ブチル−４−ヒドロキシフェ
ニルプロピル）メチルシリコーン（Ａ）の代わりに、メ
チルフェニルシリコーンを使用した他は、実施例１と全
く同様にしてシリコーングリースを得、同様にして融着
荷重及び摩耗痕直径を測定したところ、前者は３１６、
後者は１．２であった。
比較例４゜ モリブデンジチオカーバメートの代わりにジアルキルク
ロレンデートを使用した他は、実施例１と全く同様にし
て、アルキル変性シリコーングリースを得、同様にして
融着荷重及び摩耗痕直径を測定したところ前者は１４１
．後者は０．５０であった。
比較例５゜ モリブデンジチオカーバメートの代わりに、二硫化モリ
ブデンを使用した他は、実施例１と全く同様にしてアル
キル変性シリコーングリースを得、同様にして融着荷重
及び摩耗痕直径を測定したところ、前者は２００、後者
は０．４８であった。
比較例６゜ モリブデンジチオカーバメートの代わりに、１゜２．３
，４，７，８，９，１０，１３．１３，１４．１４−ド
デカクロロ−１，４，４ａ、５，６゜６ａ、７，１０．
１０ａ、１１，１２．１２−ドデカヒドロ−１，４ニア
、ｔｏ−ジメタノジベンゾ（ａ、ｅ）シクロオクテン（
商品名：デクロランプラス＃２５．０ｃｃｉｄｅｎｔａ
ｌ　Ｃｈｅ＋ｗｉｃａｌ　Ｃｏｒｐｏｒａｌｔｏｎ製）
を使用した他は、実施例１と全く同様にしてアルキル変
性シリコーングリースを得、同様にして融着荷重及び摩
耗痕直径を測定しこところ、前者は１５８、後者は０．
６２であった。
以上の実施例及び比較例の結果から、本発明のシリコー
ングリースは融着荷重が大きく極圧潤滑性に優れると共
に、低荷重（４０ｋｇｆ）時には摩耗痕直径が小さく、
潤滑性の良いことが実証された。

Claims (1)

  1. 【特許請求の範囲】 １）［１］一般式 ▲数式、化学式、表等があります▼ （ここにＲ＾１は炭素数４〜２０より成る一価の飽和又
    は不飽和の炭化水素基、Ｒ＾２は炭素数１〜３より成る
    一価の飽和又は不飽和の炭化水素基及び置換又は非置換
    のアリール基の中から選ばれる一価の基、 Ｒ＾３は ▲数式、化学式、表等があります▼、▲数式、化学式、
    表等があります▼ ▲数式、化学式、表等があります▼、▲数式、化学式、
    表等があります▼ 及び ▲数式、化学式、表等があります▼ によって表わされるヒンダードフェノール構造を持つ一
    価の有機基の中から選択される基であって、０．３≦ａ
    ≦１．０、１．０≦ｂ≦２．０、０≦ｃ≦０．０５、ａ
    ＋ｂ＋ｃは１．８〜２．３、ｎは１〜５）で表され、２
    ５℃における粘度が１０〜１０，０００ｃＳｔである長
    鎖アルキル基含有オルガノポリシロキサン：１００重量
    部、［２］増稠剤：１〜６０重量部、 及び ［３］有機モリブデン化合物：３〜３０重量部を主成分
    とすることを特徴とするシリコーングリース組成物。
JP1269834A 1989-10-16 1989-10-16 シリコーングリース組成物 Expired - Fee Related JPH0742472B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1269834A JPH0742472B2 (ja) 1989-10-16 1989-10-16 シリコーングリース組成物
US07/596,395 US5192458A (en) 1989-10-16 1990-10-12 Silicone grease composition including an organomolybdenum compound
DE69006163T DE69006163T2 (de) 1989-10-16 1990-10-16 Silikonschmierfettzusammensetzung.
EP90119837A EP0423724B1 (en) 1989-10-16 1990-10-16 Silicone grease composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1269834A JPH0742472B2 (ja) 1989-10-16 1989-10-16 シリコーングリース組成物

Publications (2)

Publication Number Publication Date
JPH03131692A true JPH03131692A (ja) 1991-06-05
JPH0742472B2 JPH0742472B2 (ja) 1995-05-10

Family

ID=17477832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1269834A Expired - Fee Related JPH0742472B2 (ja) 1989-10-16 1989-10-16 シリコーングリース組成物

Country Status (4)

Country Link
US (1) US5192458A (ja)
EP (1) EP0423724B1 (ja)
JP (1) JPH0742472B2 (ja)
DE (1) DE69006163T2 (ja)

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JP2008308587A (ja) * 2007-06-14 2008-12-25 Cosmo Sekiyu Lubricants Kk シリコーングリース組成物
JP2009073956A (ja) * 2007-09-21 2009-04-09 Shin Etsu Chem Co Ltd 室温硬化性オルガノポリシロキサン組成物
JP2020002195A (ja) * 2018-06-26 2020-01-09 信越化学工業株式会社 シリコーン粘着グリース組成物及びその製造方法

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IT1251572B (it) * 1991-09-11 1995-05-17 Enichem Sintesi Stabilizzanti polisilossanici contenenti gruppi fenolici stericamente impediti e gruppi reattivi
GB9223945D0 (en) * 1992-11-14 1993-01-06 Gkn Technology Ltd Greases
US5599778A (en) * 1994-01-28 1997-02-04 Dow Corning Toray Silicone Co., Ltd. Organosiloxane lubricant compositions
JP3560999B2 (ja) * 1994-01-28 2004-09-02 東レ・ダウコーニング・シリコーン株式会社 合成繊維用油剤またはトナー用離型剤
DE69627397T2 (de) * 1995-08-11 2003-12-04 Zenon Environmental Inc., Oakville System zur Permeatentnahme aus einem flüssigen Substrat mit mehreren Bestandteilen
JPH09151253A (ja) * 1995-11-29 1997-06-10 Toray Dow Corning Silicone Co Ltd オルガノポリシロキサン用耐熱剤および耐熱性オルガノポリシロキサン組成物
JPH10204469A (ja) * 1997-01-27 1998-08-04 Nippon Kouyu:Kk ファン軸受用グリース

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JPS5682894A (en) * 1979-12-11 1981-07-06 Toshiba Silicone Co Ltd Silicone grease for electrical contact
JPS6346299A (ja) * 1986-01-16 1988-02-27 Ntn Toyo Bearing Co Ltd プランジング型等速ジョイント用グリース

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JPS6346299A (ja) * 1986-01-16 1988-02-27 Ntn Toyo Bearing Co Ltd プランジング型等速ジョイント用グリース

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008308587A (ja) * 2007-06-14 2008-12-25 Cosmo Sekiyu Lubricants Kk シリコーングリース組成物
JP2009073956A (ja) * 2007-09-21 2009-04-09 Shin Etsu Chem Co Ltd 室温硬化性オルガノポリシロキサン組成物
JP2020002195A (ja) * 2018-06-26 2020-01-09 信越化学工業株式会社 シリコーン粘着グリース組成物及びその製造方法

Also Published As

Publication number Publication date
DE69006163D1 (de) 1994-03-03
DE69006163T2 (de) 1994-06-30
US5192458A (en) 1993-03-09
JPH0742472B2 (ja) 1995-05-10
EP0423724B1 (en) 1994-01-19
EP0423724A1 (en) 1991-04-24

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