JP2008019437A - 潤滑油組成物 - Google Patents
潤滑油組成物 Download PDFInfo
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Abstract
【解決手段】 テトラシクロパラフィン含有量が約3重量%未満の基油および燐含有化合物を含有して成る潤滑油組成物を開示する。また、本潤滑油組成物の製造方法および使用方法も開示する。
【選択図】 なし
Description
開示の要約
本開示に従い、テトラシクロパラフィン含有量が約3重量%未満の基油および燐含有化合物を含有して成る潤滑油組成物を開示する。
本開示は、テトラシクロパラフィン含有量が約3重量%未満の基油および燐含有化合物を含有して成る潤滑用組成物に関する。1つの面では、本潤滑用組成物に更に摩擦改良用化合物も含有させてもよい。さらなる面では、本潤滑用組成物に更に分散剤も含有させてもよい。
で特徴付け可能である。
R’NH2
[式中、R’は炭素原子数が約150以下のヒドロカルビル基であってもよく、より頻繁には、炭素原子数が約4から約30の脂肪族ヒドロカルビル基である]
で表される第一級ヒドロカルビルアミンである。
式R(CH3)2CNH2
[式中、Rは炭素原子数が1から約30のヒドロカルビル基であってもよい]
で表されるモノアミンである。そのようなアミンの例はt−ブチルアミン、t−ヘキシル第一級アミン、1−メチル−1−アミノ−シクロヘキサン、t−オクチル第一級アミン、t−デシル第一級アミン、t−ドデシル第一級アミン、t−テトラデシル第一級アミン、t−ヘキサデシル第一級アミン、t−オクタデシル第一級アミン、t−テトラコサニル第一級アミン、t−オクタコサニル第一級アミンであり得る。
本分野の通常の技術者に良く知られており、従って、さらなる考察は必要ないであろう。本開示の目的で用いるに有用な第三アルキル第一級アミンおよびそれらの製造方法が米国特許第2,945,749号(これに関する教示に関して引用することによって本明細書に組み入れられる)に記述されている。
で表される。1つの面において、Rには、炭素原子数が約3から約18のヒドロカルビル基の混合物が含まれる。
(1)炭化水素置換基、即ち脂肪(例えばアルキルまたはアルケニル)、脂環式(例えばシクロアルキル、シクロアルケニル)置換基および芳香置換、脂肪置換および脂環置換芳香置換基ばかりでなく環が分子の別の部分を通して完成している環式置換基(例えば2個
の置換基が一緒に脂環式基を形成している);
(2)置換炭化水素置換基、即ち炭化水素以外の基[これは、本発明に関連して、炭化水素が支配的な置換基を変えない基、例えばハロ(特にクロロおよびフルオロ)、ヒドロキシ、アルコキシ、メルカプト、アルキルメルカプト、ニトロ、ニトロソおよびスルホキシである]を含有する置換基;
(3)ヘテロ置換基、即ち主に炭化水素特性を有するが、本発明に関連して、炭素原子で構成されている環または鎖内に炭素以外の原子(ヘテロ原子には硫黄、酸素、窒素が含まれる)を含有する置換基[これにはピリジル、フリル、チエニルおよびイミダゾリルの如き置換基が含まれる]。ヒドロカルビル基中の炭素原子10個当たりに存在する非炭化水素置換基の数は一般に2個以下、例えば1個以下であり、典型的には、ヒドロカルビル基に存在する非炭化水素置換基の数はゼロである。
3,399,141; 3,413,347; 3,415,750; 3,433,744; 3,438,757; 3,442,808; 3,444,170; 3,448,047; 3,448,048; 3,448,049; 3,451,933; 3,454,497; 3,454,555; 3,454,607; 3,459,661; 3,461,172; 3,467,668; 3,493,520; 3,501,405; 3,522,179; 3,539,633; 3,541,012; 3,542,680; 3,543,678; 3,558,743; 3,565,804; 3,567,637; 3,574,101; 3,576,743; 3,586,629; 3,591,598; 3,600,372; 3,630,904; 3,632,510; 3,632,511; 3,634,515; 3,649,229; 3,697,428; 3,697,574; 3,703,536;
3,704,308; 3,725,277; 3,725,441; 3,725,480; 3,726,882; 3,736,357; 3,751,365; 3,756,953; 3,793,202; 3,798,165; 3,798,247; 3,803,039; 3,804,763; 3,836,471; 3,862,981; 3,872,019; 3,904,595; 3,936,480; 3,948,800; 3,950,341; 3,957,746; 3,957,854; 3,957,855; 3,980,569; 3,985,802; 3,991,098; 4,006,089; 4,011,380; 4,025,451; 4,058,468; 4,071,548; 4,083,699; 4,090,854; 4,173,540; 4,234,435; 4,354,950; 4,485,023; 5,137,980号およびRe 26,433の如き特許(引用することによって本明細書に組み入れられる)に記述されている。
ン、イソブテン、1−ペンテン、1−ヘキセン、1−オクテンおよびスチレン、α,ω−ジオレフィン、例えば1,5−ヘキサジエン、1,6−ヘプタジエン、1,7−オクタジエンなど、分枝鎖アルファ−オレフィン、例えば4−メチルブテン−1,5−メチルペンテン−1および6−メチルヘプテン−1などおよびこれらの混合物が含まれる。
、防錆剤および摩擦改良剤が含まれる。
[実施例]
グループIIの基油は飽和物を90%以上含有し、硫黄含有量は0.03%未満でありかつ約80から約120の粘度指数を示すことが本産業で知られている。しかしながら、グループIIの基油の必ずしも全部が同じ薄膜摩擦特性を示すとは限らない。表1に示す基油にAnalytical Chemistry、64:2227(1992)(これの開示は引用することによって本明細書に組み入れられる)に示されている手順に従う分析を受けさせることで、当該油に入っているパラフィン、シクロパラフィンおよび芳香族の種類を測定した。
い油が示す薄膜摩擦は低いことを示している。
SAE 2000−01−2030は、燐含有化合物は表面に膜を形成する結果として薄膜摩擦を高めることを示している。例えば、ジアルキルジチオ燐酸亜鉛(ZDDP)は薄膜摩擦を高める可能性がある。ZDDPはエンジンオイルで用いられる最も一般的な燐含有化合物である。
油に添加される添加剤、例えば分散剤、洗浄剤、抗摩耗剤および/または抗酸化剤などが完全に備わっていると薄膜摩擦が高くなると報告された。M.T.Devlin,T.HammockおよびT−C.Jao,“Effect of Mechanical Shear on the Thin Film Properties of Base Oil/Polymer Mixtures”,Lubrication Science 14巻(2),2002(これの開示は引用することによって本明細書に組み入れられる)を参照のこと。添加剤のいろいろな組み合わせを基油Aおよび基油Cの各々と一緒にし/混合/ブレンドすることを通して、それらが示す薄膜摩擦係数を測定した。そのような組成物ではAAPを0.6重量%添加し、そしてモリブデン含有摩擦改良剤化合物のモリブデン含有量は約480ppmであった。その上、グリセロールモノオレエートを添加剤パッケージに存在させる時には、それを0.60重量%添加した。同様に、分散剤を添加剤パッケージに存在させる時には、それを3.0重量%添加した。薄膜摩擦係数の測定を実施例1に記述した如く実施した。
浮かぶ可能性がある。従って、出願したままおよび補正を行うことが可能な如き添付請求項にそのような代替物、修飾形、変形、改良物および実質的な相当物の全部を包含させることを意図する。
Claims (30)
- 潤滑油組成物であって、テトラシクロパラフィン含有量が約3重量%未満の基油および燐含有化合物を含有して成る潤滑油組成物。
- 前記燐含有化合物が金属を含有しない燐含有化合物である請求項1記載の組成物。
- 前記金属を含有しない燐含有化合物がアミル酸ホスフェート、ネオペンチルグリコールホスファイト、ネオペンチルグリコールホスファイトの塩およびホスホネートから選択される請求項2記載の組成物。
- 前記燐含有化合物が硫黄を含有する燐含有化合物である請求項1記載の組成物。
- 前記硫黄を含有する燐含有化合物がチオホスフェート、ジチオホスフェート、硫黄含有ネオペンチルグリコールホスファイトおよび硫黄含有ネオペンチルグリコールホスファイトの塩から選択される請求項4記載の組成物。
- 更に分散剤も含有して成る請求項1記載の組成物。
- 前記分散剤がスクシニミド、ホウ素化スクシニミド、マンニッヒ分散剤、官能化オレフィン共重合体およびポリ(メタ)アクリレート共重合体の中の少なくとも1種である請求項6記載の組成物。
- 前記分散剤がスクシニミドである請求項7記載の組成物。
- 前記分散剤が高度グラフト化アミン誘導官能化エチレン−プロピレン共重合体である請求項6記載の組成物。
- 更に摩擦改良剤も含有して成る請求項1記載の組成物。
- 前記摩擦改良剤が窒素を含有しない化合物、窒素含有化合物および灰分含有化合物の中の少なくとも1種である請求項10記載の組成物。
- 前記窒素含有化合物が長鎖アルキレンアミンである請求項11記載の組成物。
- 前記長鎖アルキレンアミンがN−オレイル−トリメチレンジアミン、N−獣脂−トリメチレンジアミン、ココ−トリメチレンジアミンおよびこれらの混合物から選択される請求項12記載の組成物。
- 前記窒素含有化合物がジエタノールアミンである請求項11記載の組成物。
- 前記灰分含有化合物がモリブデン含有化合物、チタン含有化合物およびタングステン含有化合物から選択される請求項11記載の組成物。
- 前記モリブデン含有化合物が硫黄を含有して成る請求項15記載の組成物。
- 前記モリブデン含有化合物がモリブデンのカルボン酸塩、モリブデンのアミド、モリブデンのチオ燐酸塩、モリブデンのチオカルバミン酸塩およびこれらの混合物から選択される請求項15記載の組成物。
- 前記窒素を含有しない化合物がポリオールエステルである請求項11記載の組成物。
- 前記ポリオールエステルがグリセロールモノオレエートおよびグリセロールモノラウレートから選択される請求項18記載の組成物。
- テトラシクロパラフィン含有量が約3重量%未満の基油、金属を含有しない燐含有化合物、分散剤および摩擦改良剤を含有して成る潤滑油組成物。
- 前記分散剤がスクシニミドである請求項20記載の組成物。
- 前記摩擦改良剤が窒素を含有しない化合物およびモリブデン含有化合物の中の少なくとも1種である請求項20記載の組成物。
- テトラシクロパラフィン含有量が約3重量%未満の基油、金属を含有しない燐含有化合物、エチレン−プロピレン共重合体および摩擦改良剤を含有して成る潤滑油組成物。
- ある流体が表面間で示す薄膜摩擦を低下させる方法であって、前記流体にテトラシクロパラフィン含有量が約3重量%未満の基油と燐含有化合物を含有して成る組成物を供給することを含んで成る方法。
- 運搬手段における燃料効率を向上させる方法であって、運搬手段にテトラシクロパラフィン含有量が約3重量%未満の基油と燐含有化合物を含有して成る組成物を供給することを含んで成る方法。
- 請求項1記載の潤滑油組成物で潤滑されているエンジン、トランスミッションまたはギアセット。
- 潤滑油組成物の製造方法であって、テトラシクロパラフィン含有量が約3重量%未満の基油と燐含有化合物を一緒にすることを含んで成る方法。
- 機械に潤滑油を差す方法であって、前記機械に請求項1記載の潤滑油組成物を供給することを含んで成る方法。
- 前記機械がギアである請求項28記載の方法。
- 前記機械がエンジンである請求項28記載の方法。
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Also Published As
Publication number | Publication date |
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DE102007027343A1 (de) | 2008-01-17 |
GB2440217A (en) | 2008-01-23 |
CN101177644B (zh) | 2013-05-08 |
FR2904326B1 (fr) | 2011-09-16 |
US20080015125A1 (en) | 2008-01-17 |
GB0711554D0 (en) | 2007-07-25 |
US7879775B2 (en) | 2011-02-01 |
GB2440217B (en) | 2009-04-08 |
CN101104827B (zh) | 2010-12-01 |
CN101104827A (zh) | 2008-01-16 |
GB2440217A8 (en) | 2009-10-14 |
CN101177644A (zh) | 2008-05-14 |
FR2904326A1 (fr) | 2008-02-01 |
GB2440217B8 (en) | 2009-10-14 |
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