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JP2799634B2 - 等速ジョイント用グリース組成物 - Google Patents

等速ジョイント用グリース組成物

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Publication number
JP2799634B2
JP2799634B2 JP3042081A JP4208191A JP2799634B2 JP 2799634 B2 JP2799634 B2 JP 2799634B2 JP 3042081 A JP3042081 A JP 3042081A JP 4208191 A JP4208191 A JP 4208191A JP 2799634 B2 JP2799634 B2 JP 2799634B2
Authority
JP
Japan
Prior art keywords
embedded image
grease composition
thickener
constant velocity
weight
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.)
Expired - Lifetime
Application number
JP3042081A
Other languages
English (en)
Other versions
JPH04279698A (ja
Inventor
広嗣 木下
宗市 野村
優 三嶋
Original Assignee
日本石油株式会社
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=12626102&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP2799634(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 日本石油株式会社 filed Critical 日本石油株式会社
Priority to JP3042081A priority Critical patent/JP2799634B2/ja
Priority to DE69223833T priority patent/DE69223833T2/de
Priority to DE69226509T priority patent/DE69226509T2/de
Priority to EP93107040A priority patent/EP0558099B1/en
Priority to EP92103878A priority patent/EP0508115B1/en
Publication of JPH04279698A publication Critical patent/JPH04279698A/ja
Priority to US08/135,254 priority patent/US5462683A/en
Priority to US08/499,942 priority patent/US5569643A/en
Priority to US08/514,387 priority patent/US5512188A/en
Publication of JP2799634B2 publication Critical patent/JP2799634B2/ja
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • C10M169/06—Mixtures of thickeners and additives
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    • C10M113/00—Lubricating compositions characterised by the thickening agent being an inorganic material
    • C10M113/10—Clays; Micas
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    • C10M113/12—Silica
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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は等速ジョイントすなわち
固定型ジョイントおよびスライド型ジョイント用グリー
ス組成物に関する。
【０００２】
【従来の技術】一般に、ＦＦ車において、等速ジョイン
トを適用する場合には、（固定型ジョイント）＋（シャ
フト）＋（スラスト型ジョイント）の組み合わせで使用
されている。
【０００３】固定型ジョイントには、バーフィールドジ
ョイント、ゼッパジョイント、アンダーカットフリージ
ョイントおよびトリポードジョイントなどがあり、スラ
イド型ジョイントにはダブルオフセットジョイント、ト
リポードジョイントおよびクロスグルーブジョイントな
どがある。
【０００４】これらの等速ジョイントに封入使用される
潤滑剤としては、従来から精製鉱油とリチウム石けんや
ウレア系増ちょう剤とからなる基グリースに、ニ硫化モ
リブデンといおう−りん系化合物、鉛系化合物などを組
み合わせた極圧グリースが主に使用されている。
【０００５】等速ジョイント用グリースには、（１）耐
フレーキング性、（２）耐焼き付き性、（３）耐摩耗
性、（４）低摩擦性などの性能が要求される。しかし、
最近の自動車の高性能化、高級化傾向に対して従来のグ
リースでは性能不足となってきており、特に等速ジョイ
ントの寿命延長の面から、耐フレーキング性能の向上が
切望されている。
【０００６】
【発明が解決しようとする課題】本発明の目的は、特に
耐フレーキング性能に優れ、等速ジョイントの寿命を延
命させることができる等速ジョイント用グリースを提供
することにある。
【０００７】
【課題を解決するための手段】本発明によれば、基油
に、増ちょう剤と窒化ほう素粉体とを、また必要に応じ
て更に有機亜鉛化合物を含有させたことを特徴とする等
速ジョイント用グリース組成物が提供される。
【０００８】以下本発明を更に詳細に説明する。
【０００９】本発明においては、石油系潤滑基油、合成
油を問わず各種の潤滑基油を、基油として用いることが
可能であるが、経済的には石油系潤滑基油が好ましい。
該石油系潤滑基油としては、例えば、原油を常圧蒸留お
よび減圧蒸留して得られる潤滑油留分を、溶剤脱れき、
溶剤抽出、水素化分解、溶剤脱ろう、接触脱ろう、水素
化精製、硫酸洗浄、白土処理等の精製処理を適宜組み合
わせて精製したパラフィン系、ナフテン系などの基油が
使用できる。また、合成油としては、例えば、ポリブテ
ン、１−オクテンオリゴマー、１−デセンオリゴマー等
のポリα−オレフィン；アルキルベンゼン；アルキルナ
フタレン；ジトリデシルグルタレート、ジ−２−エチル
ヘキシルアジペート、ジイソデシルアジペート、ジトリ
デシルアジペート、ジ−３−エチルヘキシルセバケート
等のジエステル；トリメチロールプロパンカプリレー
ト、トリメチロールプロパンペラルゴネート、ペンタエ
リスリトール−２−エチルヘキサノエート、ペンタエリ
スリトールペラルゴネート等のポリオールエステル；ポ
リオキシアルキレングリコール；ポリフェニルエーテ
ル；シリコーン油；パーフルオロアルキルエーテル等を
挙げることができ、使用に際しては単独若しくは混合物
として用いることができる。これらの基油の粘度範囲は
通常使用されている潤滑油の粘度範囲であるならばすべ
て使用可能であるが、特に好ましい粘度範囲は、１００
℃で２〜４０cStのものである。
【００１０】本発明において、前記基油に含有させる増
ちよう剤としては、金属石けん、複合金属石けん等の石
けん系；ベントン、シリカゲル、ウレア化合物、ウレア
・ウレタン化合物、ウレタン化合物等の非石けん系な
ど、あらゆる増ちょう剤が使用可能であるが、耐熱性の
点からウレア化合物、ウレア・ウレタン化合物、ウレタ
ン化合物又はこれらの混合物等が好ましい。
【００１１】前記金属石けん、複合金属石けんとして
は、例えばナトリウム石けん、カルシウム石けん、アル
ミニウム石けん、リチウム石けん等が挙げられる。また
前記ウレア化合物、ウレア・ウレタン化合物およびウレ
タン化合物としては、例えばジウレア化合物、トリウレ
ア化合物、テトラウレア化合物、ポリウレア化合物、ウ
レア・ウレタン化合物、ジウレタン化合物あるいはこれ
らの混合物等が挙げられる。更に好ましくは、ジウレア
化合物、ウレア・ウレタン化合物、ジウレタン化合物又
はこれらの混合物等を挙げることができ、更に具体的に
は、例えば下記一般式化１
【００１２】
【化１】
【００１３】で表わされる化合物単独若しくはこれらの
混合系が好ましい。前記化１中のＲは、好ましくは炭素
数６〜２０、特に好ましくは炭素数６〜１５の２価の炭
化水素基である。該２価の炭化水素基としては、直鎖又
は分枝アルキレン基、直鎖又は分枝アルケニレン基、シ
クロアルキレン基又は芳香族基などが挙げられる。具体
的には例えば−(ＣＨ2)−、下記式で表わされる化２〜
１２等の基を挙げることができる。
【００１４】
【化２】
【００１５】
【化３】
【００１６】
【化４】
【００１７】
【化５】
【００１８】
【化６】
【００１９】
【化７】
【００２０】
【化８】
【００２１】
【化９】
【００２２】
【化１０】
【００２３】
【化１１】
【００２４】
【化１２】
【００２５】また化１中Ｒ1，Ｒ2，Ｒ3およびＲ4として
は、直鎖又は分枝アルキル基、直鎖又は分枝アルケニル
基、シクロアルキル基、芳香族基などが挙げられる。具
体的には例えば、ヘキシル基、ヘプチル基、オクチル
基、ノニル基、デシル基、ウンデシル基、ドデシル基、
トリデシル基、テトラデシル基、ペンタデシル基、ヘキ
サデシル基、ヘプタデシル基、オクタデシル基、ノナデ
シル基、エイコシル基、ヘキセニル基、ヘプテニル基、
オクテニル基、ノネニル基、デセニル基、ウンデセニル
基、ドデセニル基、トリデセニル基、テトラデセニル
基、ペンタデセニル基、ヘキサデセニル基、ヘプタデセ
ニル基、オクタデセニル基、ノナデセニル基、エイコセ
ニル基、シクロヘキシル基、メチルシクロヘキシル基、
ジメチルシクロヘキシル基、エチルシクロヘキシル基、
ジエチルシクロヘキシル基、プロピルシクロヘキシル
基、イソプロピルシクロヘキシル基、１−メチル−３−
プロピルシクロヘキシル基、ブチルシクロヘキシル基、
アミルシクロヘキシル基、アミルメチルシクロヘキシル
基、ヘキシルシクロヘキシル基、ヘプチルシクロヘキシ
ル基、オクチルシクロヘキシル基、ノニルシクロヘキシ
ル基、デシルシクロヘキシル基、ウンデシルシクロヘキ
シル基、ドデシルシクロヘキシル基、トリデシルシクロ
ヘキシル基、テトラデシルシクロヘキシル基、フェニル
基、トルイル基、ベンジル基、エチルフェニル基、メチ
ルベンジル基、キシリル基、プロピルフェニル基、クメ
ニル基、エチルベンジル基、ナフチル基、メチルナフチ
ル基、エチルナフチル基、ジメチルナフチル基、プロピ
ルナフチル基等を挙げることができる。また前記化１で
表わされる化合物の具体例としては、下記式で表わされ
る化１３〜化１０５等を挙げることができ、更に詳細に
は例えば、特公昭５５−１１１５６号、特開昭６２−２
５００９７号、特開昭６４−９２９６号の各公報に記載
される化合物などが使用できる。
【００２６】
【化１３】
【００２７】
【化１４】
【００２８】
【化１５】
【００２９】
【化１６】
【００３０】
【化１７】
【００３１】
【化１８】
【００３２】
【化１９】
【００３３】
【化２０】
【００３４】
【化２１】
【００３５】
【化２２】
【００３６】
【化２３】
【００３７】
【化２４】
【００３８】
【化２５】
【００３９】
【化２６】
【００４０】
【化２７】
【００４１】
【化２８】
【００４２】
【化２９】
【００４３】
【化３０】
【００４４】
【化３１】
【００４５】
【化３２】
【００４６】
【化３３】
【００４７】
【化３４】
【００４８】
【化３５】
【００４９】
【化３６】
【００５０】
【化３７】
【００５１】
【化３８】
【００５２】
【化３９】
【００５３】
【化４０】
【００５４】
【化４１】
【００５５】
【化４２】
【００５６】
【化４３】
【００５７】
【化４４】
【００５８】
【化４５】
【００５９】
【化４６】
【００６０】
【化４７】
【００６１】
【化４８】
【００６２】
【化４９】
【００６３】
【化５０】
【００６４】
【化５１】
【００６５】
【化５２】
【００６６】
【化５３】
【００６７】
【化５４】
【００６８】
【化５５】
【００６９】
【化５６】
【００７０】
【化５７】
【００７１】
【化５８】
【００７２】
【化５９】
【００７３】
【化６０】
【００７４】
【化６１】
【００７５】
【化６２】
【００７６】
【化６３】
【００７７】
【化６４】
【００７８】
【化６５】
【００７９】
【化６６】
【００８０】
【化６７】
【００８１】
【化６８】
【００８２】
【化６９】
【００８３】
【化７０】
【００８４】
【化７１】
【００８５】
【化７２】
【００８６】
【化７３】
【００８７】
【化７４】
【００８８】
【化７５】
【００８９】
【化７６】
【００９０】
【化７７】
【００９１】
【化７８】
【００９２】
【化７９】
【００９３】
【化８０】
【００９４】
【化８１】
【００９５】
【化８２】
【００９６】
【化８３】
【００９７】
【化８４】
【００９８】
【化８５】
【００９９】
【化８６】
【０１００】
【化８７】
【０１０１】
【化８８】
【０１０２】
【化８９】
【０１０３】
【化９０】
【０１０４】
【化９１】
【０１０５】
【化９２】
【０１０６】
【化９３】
【０１０７】
【化９４】
【０１０８】
【化９５】
【０１０９】
【化９６】
【０１１０】
【化９７】
【０１１１】
【化９８】
【０１１２】
【化９９】
【０１１３】
【化１００】
【０１１４】
【化１０１】
【０１１５】
【化１０２】
【０１１６】
【化１０３】
【０１１７】
【化１０４】
【０１１８】
【化１０５】
【０１１９】これらのジウレア化合物、ウレア・ウレタ
ン化合物またはジウレタン化合物を製造するには、例え
ば、一般式ＯＣＮ−Ｒ−ＮＣＯで表わされるジイソシア
ネートと、一般式Ｒ1−ＮＨ2、下記一般式化１０６また
はＲ4−ＯＨで表わされる化合物もしくはこれらの混合
物とを、基油中で１０〜２００℃で反応させることによ
り得られる。この際Ｒ、Ｒ1，Ｒ2，Ｒ3およびＲ4は、前
記化１のＲ、Ｒ1，Ｒ2，Ｒ3およびＲ4と同一である。
【０１２０】
【化１０６】
【０１２１】前記増ちょう剤の含有量は、組成物全量に
対し、好ましくは２〜２５重量％、特に好ましくは３〜
２０重量％の範囲である。２重量％未満の場合には、増
ちょう剤としての効果が少ないため十分なグリース状と
はならず、２５重量％を越えるとグリースとして硬くな
りすぎて十分な潤滑性能を発揮することができないので
好ましくない。
【０１２２】本発明において、前記基油に含有させる窒
化ほう素粉体の粒径には特に限定されず、例えば、平均
粒径が０．０５〜５μｍ、特に０．４〜２μｍの範囲で
あるのが好ましい。
【０１２３】前記窒化ほう素粉体の含有量は、組成物全
量に対し、好ましくは０．５〜２０重量％、特に好まし
くは１〜１０重量％の範囲である。０．５重量％未満の
場合には、耐フレーキング性能に支障が生じ、２０重量
％を越えるとグリースとして硬くなりすぎて十分な潤滑
性能を発揮することができないので好ましくない。
【０１２４】また本発明においては、前記増ちょう剤及
び窒化ほう素粉体を含む組成物に加えて、有機亜鉛化合
物を添加することにより、更に耐フレーキング性能を向
上させることができる。該有機亜鉛化合物としては例え
ば、ジチオリン酸亜鉛、ジチオカルバミン酸亜鉛、脂肪
酸亜鉛塩、ナフテン酸亜鉛塩等が使用でき、その構造
は、下記化１０７で表わされるジチオリン酸亜鉛、下記
化１０８で表わされるジチオカルバミン酸亜鉛、（Ｒ9
ＣＯＯ）2Ｚｎ（式中Ｒ9：アルキル基、アルケニル基）
で表わされる脂肪酸亜鉛塩、下記化１０９で表わされる
ナフテン酸亜鉛塩等を挙げることができる。
【０１２５】
【化１０７】
【０１２６】
【化１０８】
【０１２７】
【化１０９】
【０１２８】本発明において、有機亜鉛化合物を含有さ
せる場合の該有機亜鉛化合物の含有量は、組成物全量に
対して、好ましくは０．１〜１０重量％、特に好ましく
は１．０〜５．０重量％の範囲である。０．１重量％未
満の場合はその添加効果が発揮されず、１０重量％を越
える場合には添加量に見合った効果が得られず、不経済
であるためそれぞれ好ましくない。
【０１２９】なお、本発明の等速ジョイント用グリース
組成物では、その性質を損ねることがない限り、さらに
性能を向上させるために必要に応じて固体潤滑剤、更に
は極圧剤、酸化防止剤、油性剤、さび止め剤、粘度指数
向上剤などを含有させることもできる。
【０１３０】前記固体潤滑剤としては具体的には例え
ば、黒鉛、フッ化黒鉛、ポリテトラフロロエチレン、二
硫化モリブデン、硫化アンチモン、アルカリ（土類）金
属ほう酸塩等が挙げられる。極圧剤としては具体的に
は、モノスルフィド、ジスルフィド、スルホキシド、ス
ルフィネート等のいおう系化合物；ホスフェート、ホス
ファイト、ホスフィネート、ホスホネートあるいはこれ
らのアミン塩等のリン系化合物；塩素化パラフィン、塩
素化エステル等の塩素系化合物；モリブデンジチオホス
フェート、モリブデンジチオカーバメート等のモリブデ
ン化合物等が挙げられる。酸化防止剤としては具体的に
は、２，６−ジ−ｔ−ブチルフェノール、２，６−ジ−
ｔ−ブチル−ｐ−クレゾール等のフェノール系化合物；
ジアルキルジフェニルアミン、フェニル−α−ナフチル
アミン、ｐ−アルキルフェニル−α−ナフチルアミン等
のアミン系化合物；硫黄系化合物、フェノチアジン系化
合物等が挙げられる。油性剤としては具体的には、ラウ
リルアミン、ミリスチルアミン、パルミチルアミン、ス
テアリルアミン、オレイルアミン等のアミン類；ラウリ
ルアルコール、ミリスチルアルコール、パルミチルアル
コール、ステアリルアルコール、オレイルアルコール等
の高級アルコール；ラウリン酸、ミリスチン酸、パルミ
チン酸、ステアリン酸、オレイン酸等の高級脂肪酸；ラ
ウリン酸メチル、ミリスチン酸メチル、パルミチン酸メ
チル、ステアリン酸メチル、オレイン酸メチル等の脂肪
酸エステル；ラウリルアミド、ミリスチルアミド、パル
ミチルアミド、ステアリルアミド、オレイルアミド等の
アミド類；油脂等が挙げられる。さび止め剤としては具
体的には、金属石けん、石油スルホネート、アルキルベ
ンゼンスルホネート、ジノニルナフタレンスルホネート
等の合成スルホネート；ソルビタン脂肪酸エステル等の
多価アルコール部分エステル；アミン、リン酸、リン酸
塩等が挙げられる。粘度指数向上剤としては具体的に
は、ポリメタクリレート、ポリイソブチレン、ポリスチ
レン等が挙げられる。
【０１３１】本発明の等速ジョイント用グリース組成物
を調製するには、例えば基油に、前記増ちょう剤、窒化
ほう素粉体、また必要に応じて有機亜鉛化合物又はその
他の添加物を撹拌し、ロールミル等を通すことにより得
ることができる。また基油に増ちょう剤の原料成分を予
め添加、溶融し、撹拌混合させて、増ちょう剤を調製す
ると共に、組成物を製造することもできる。
【０１３２】
【発明の効果】本発明の等速ジョイント用グリース組成
物は、組成物中に少なくとも増ちょう剤及び窒化ほう素
粉体を同時に含有しているので、特に耐フレーキング性
能に優れ、等速ジョイントの寿命を延命させることがで
きる。
【０１３３】
【実施例】以下本発明の内容を、実施例及び比較例によ
り更に具体的に説明するが、本発明はこれらに限定され
るものではない。
【０１３４】
【実施例１】増ちょう剤を含む市販のリチウム石けん系
グリースＡ（６０回混和ちょう度：２７８）に、平均粒
径０．７μｍの窒化ほう素粉体３．０重量％を添加した
後、３本ロールミルを通し目的のグリース組成物を調製
した。得られたグリース組成物につき、以下の方法で評
価試験を行った。その結果を表１に示す。
【０１３５】〈評価試験〉台上耐久試験 市販＃８７サイズパーフィールド型ジョイントを用い、
所定の高速回転、高トルク条件で、ジョイントが寿命に
至るまでの時間を評価した。
【０１３６】
【実施例２】ジフェニルメタン−４，４’−ジイソシア
ネート８８．０ｇを、３５０ｇの鉱油に入れ、６０℃に
加熱し、均一に溶解させた。次いでドデシルアルコール
２６．２ｇを同鉱油２１０ｇに加熱溶解させた溶解物を
添加し、激しく撹拌した後、さらにシクロヘキシルアミ
ン５５．８ｇを同鉱油２１０ｇに溶解させた溶解物を加
え、再度激しく撹拌したところ、ゲル状物質が生じた。
撹拌を続けながら１００℃にて３０分間保持した後、添
加剤を添加して撹拌し、３本ロールミルを通して目的の
グリース組成物を調製した。得られたグリース組成物に
ついて、実施例１と同様な評価試験を行なった。その結
果を表１に示す。またこのグリース組成物の組成を以下
に示す。
【０１３７】 組成 増ちょう剤 １７．０重量％ 鉱油（４０℃：１２６cSt） ７７．０重量％ 窒化ほう素粉体（平均粒径：０．７μｍ） １．５重量％ ｐｒｉ−アルキルジチオリン酸亜鉛 ３．５重量％ アミン系酸化防止剤 １．０重量％ （６０Ｗちょう度：２８９） 上記増ちょう剤の構造式を下記化１１０に示す。
【０１３８】
【化１１０】
【０１３９】
【実施例３】Ｌｉ−１２−ヒドロキシステアレート７５
ｇを、５５０ｇのポリ−αオレフィンに入れ、撹拌しな
がら２００℃に加熱溶解した後、２７０ｇのポリ−αオ
レフィンを添加して急冷したところゲル状物質が生じ
た。撹拌を続けながら１００℃にて３０分間保持した
後、添加剤を添加して撹拌し３本ロールミルを通して目
的のグリース組成物を調製した。得られたグリース組成
物について、実施例１と同様な評価試験を行なった。そ
の結果を表１に示す。またこのグリース組成物の組成を
以下に示す。
【０１４０】 組成 Ｌｉ−１２−ヒドロキシステアレート ７．５重量％ ポリ−αオレフィン（４０℃：７８．２cSt） ８２．０重量％ 窒化ほう素粉体（平均粒径：１．６μｍ） ５．０重量％ アリルジチオリン酸亜鉛 ２．０重量％ フェノール系酸化防止剤 １．５重量％ ポリメタクリレート ２．０重量％ （６０Ｗちょう度：２７２）
【０１４１】
【実施例４】ジフェニルメタン−４，４’−ジイソシア
ネート７５．３ｇを、７９０ｇのアルキルジフェニルエ
ーテルに入れ、６０℃に加熱し、均一に溶解させた。次
いでシクロヘキシルアミン５９．７ｇを添加し、激しく
撹拌したところゲル状物質が生じた。撹拌を続けながら
１００℃にて３０分間保持した後、添加剤を添加して撹
拌し３本ロールミルを通して目的のグリース組成物を調
製した。得られたグリース組成物について、実施例１と
同様な評価試験を行なった。その結果を表１に示す。ま
たこのグリース組成物の組成を以下に示す。
【０１４２】 組成 増ちょう剤 １３．５重量％ アルキルジフェニルエーテル（４０℃：１２２cSt） ７９．０重量％ 窒化ほう素粉体（平均粒径：０．７μｍ） ２．０重量％ ｓｅｃ−アルキルジチオリン酸亜鉛 ３．０重量％ ＭｏＳ2（平均粒径：１．２μｍ） ２．５重量％ （６０Ｗちょう度：３１８） 上記増ちょう剤の構造式を下記化１１１に示す。
【０１４３】
【化１１１】
【０１４４】
【比較例１】市販のリチウム石けん系グリースＡについ
て、実施例１と同様な評価試験を行なった。その結果を
表１に示す。
【０１４５】
【比較例２】実施例２の方法に準じて目的のグリース組
成物を調製した。得られたグリース組成物について、実
施例１と同様な評価試験を行なった。その結果を表１に
示す。またこのグリース組成物の組成を以下に示す。
【０１４６】 組成 増ちょう剤（実施例２に同じ） １７．０重量％ 鉱油（４０℃：１２６cSt） ７８．５重量％ ｐｒｉ−アルキルジチオリン酸亜鉛 ３．５重量％ アミン系酸化防止剤 １．０重量％ （６０Ｗちょう度：２９１）
【０１４７】
【比較例３】実施例４の方法に準じて目的のグリース組
成物を調製した。得られたグリース組成物について、実
施例１と同様な評価試験を行なった。その結果を表１に
示す。またこのグリース組成物の組成を以下に示す。
【０１４８】 組成 増ちょう剤（実施例２に同じ） １３．５重量％ 鉱油（４０℃：１２６cSt） ８１．０重量％ ｓｅｃ−アルキルジチオリン酸亜鉛 ３．０重量％ ＭｏＳ2（平均粒径：１．２μｍ） ２．５重量％ （６０Ｗちょう度：３２６）
【０１４９】
【表１】
【０１５０】表１の結果から明らかなように、本発明の
等速ジョイント用グリース組成物は、比較例に示すグリ
ース組成物に比較して等速ジョイントの寿命を延長でき
ることがわかる。
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ１０Ｍ 135:00 137:00） Ｃ１０Ｎ 10:04 10:12 40:04 (58)調査した分野(Int.Cl.6，ＤＢ名) C10M 169/06 C10M 103/00 C10M 115/08 C10M 125/26 C10N 10:04 C10N 10:12 C10N 40:04

Claims (5)

    (57)【特許請求の範囲】
  1. 【請求項１】 基油に、増ちょう剤および窒化ほう素粉
    体を含有させたことを特徴とする等速ジョイント用グリ
    ース組成物。
  2. 【請求項２】 基油に、増ちょう剤、窒化ほう素粉体お
    よび有機亜鉛化合物を含有させたことを特徴とする等速
    ジョイント用グリース組成物。
  3. 【請求項３】 基油に、増ちょう剤、窒化ほう素粉体お
    よびモリブデンジチオカーバメートを含有させたことを
    特徴とする等速ジョイント用グリース組成物。
  4. 【請求項４】 基油に、増ちょう剤、窒化ほう素粉体お
    よびいおう系極圧剤を含有させたことを特徴とする等速
    ジョイント用グリース組成物。
  5. 【請求項５】 基油に、増ちょう剤、窒化ほう素粉体お
    よびリン系極圧剤を含有させたことを特徴とする等速ジ
    ョイント用グリース組成物。
JP3042081A 1991-03-07 1991-03-07 等速ジョイント用グリース組成物 Expired - Lifetime JP2799634B2 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP3042081A JP2799634B2 (ja) 1991-03-07 1991-03-07 等速ジョイント用グリース組成物
EP92103878A EP0508115B1 (en) 1991-03-07 1992-03-06 Use of a grease composition for constant velocity joint
DE69226509T DE69226509T2 (de) 1991-03-07 1992-03-06 Verwendung von einer Schmierfettzusammensetzung für homokinetische Kupplung
EP93107040A EP0558099B1 (en) 1991-03-07 1992-03-06 Use of a grease composition for constant velocity joint
DE69223833T DE69223833T2 (de) 1991-03-07 1992-03-06 Verwendung von einer Schmierfettzusammensetzung für homokinetische Kupplung
US08/135,254 US5462683A (en) 1991-03-07 1993-10-12 Grease composition for constant velocity joint
US08/499,942 US5569643A (en) 1991-03-07 1995-07-10 Grease composition for constant velocity joint
US08/514,387 US5512188A (en) 1991-03-07 1995-08-11 Grease composition for constant velocity joint comprising boron nitride powder and zinc dithiophosphate

Applications Claiming Priority (1)

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JP3042081A JP2799634B2 (ja) 1991-03-07 1991-03-07 等速ジョイント用グリース組成物

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JP2799634B2 true JP2799634B2 (ja) 1998-09-21

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DE69226509T2 (de) 1999-05-06
US5512188A (en) 1996-04-30
EP0508115B1 (en) 1998-01-07
DE69223833D1 (de) 1998-02-12
DE69223833T2 (de) 1998-08-27
EP0558099A1 (en) 1993-09-01
EP0508115A1 (en) 1992-10-14
DE69226509D1 (de) 1998-09-10
JPH04279698A (ja) 1992-10-05
EP0558099B1 (en) 1998-08-05

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