JP4070715B2 - 潤滑剤のオキサジアゾール添加剤 - Google Patents
潤滑剤のオキサジアゾール添加剤 Download PDFInfo
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Description
(A)潤滑剤と、
(B)次式の少なくとも1種の5−アルキル−2−メルカプト−1,3,4−オキサジアゾール化合物とを含む組成物を対象とする。
以下は、5−ヘプタデセニル−2−メルカプト−1,3,4−オキサジアゾールを調製するための出発原料としてオレイルヒドラジドを用いる5−アルキル−2−メルカプト−1,3,4−オキサジアゾールの一般的な調製である。
5−ヘプタデセニル−2−メルカプト−1,3,4−オキサジアゾール添加剤は、現在使用されているジチオリン酸ジアルキル亜鉛の部分的又は完全な代替物として用いることができる。それらはまた、潤滑油中に一般的に認められる他の添加剤並びに他の無灰、抗摩耗添加剤と併用することができる。本発明はまた、潤滑油における油の性能特性を改善するために、これらの他の添加剤との相乗効果を示す。潤滑油中に一般的に認められる添加剤は、たとえば、分散剤、界面活性剤、腐食/さび止め剤、酸化防止剤、抗摩耗剤、泡止め剤、摩擦緩和剤、シール膨潤剤、解乳化剤、VI向上剤、流動点降下剤等である。有用な潤滑油組成物添加剤については、その開示の全体が参照により本明細書に組み込まれる、たとえば米国特許第5,498,809号を参照のこと。分散剤の例としては、ポリイソブチレンコハク酸イミド、ポリイソブチレンコハク酸エステル、マンニッヒ塩基無灰分散剤等がある。界面活性剤の例としては、金属アルキルフェノラート、金属硫化アルキルフェノラート、金属アルキルスルホン酸塩、金属アルキルサリチル酸塩等がある。酸化防止剤の例としては、アルキル化ジフェニルアミン、N−アルキル化フェニレンジアミン、立体的に込み合ったフェノール類、アルキル化ヒドロキノン、ヒドロキシル化チオジフェニルエーテル、アルキリデンビフェノール、油溶性銅化合物等がある。本発明の添加剤と併用することができる抗摩耗添加剤の例としては、有機ホウ酸エステル、有機亜リン酸エステル、含硫黄有機化合物、ジチオリン酸ジアルキル亜鉛、ジチオリン酸ジアリール亜鉛、リン硫化炭化水素等がある。以下は、そのような添加剤の具体例であり、リュブリゾール社(Lubrizol Corporation)から市販されている。すなわち、とりわけ、Lubrizol 677A、Lubrizol 1095、Lubrizol 1097、Lubrizol 1360、Lubrizol 1395、Lubrizol 5139及びLubrizol 5604などである。摩擦緩和剤の例としては、脂肪酸エステル及びアミド、有機モリブデン化合物、ジアルキルチオカルバミン酸モリブデン、ジアルキルジチオリン酸モリブデン等がある。泡止め剤の例としては、ポリシロキサン等がある。さび止め剤の例としては、ポリオキシアルキレンポリオール等がある。VI向上剤の例としては、オレフィンコポリマー及び分散剤オレフィンコポリマー等がある。流動点降下剤の例としては、ポリメタクリル酸等がある。
[式中、R2及びR3が同じか、又は異なっていて、アルキル、シクロアルキル、アラルキル、アルカリル又は上の基のいずれかの置換された実質的に炭化水素ラジカル誘導体であり、酸におけるR2及びR3基がそれぞれ平均で少なくとも3個の炭素原子を有する。]「実質的に炭化水素」は、ラジカルの炭化水素特性に実質的に影響を及ぼさないエーテル、エステル、ニトロ又はハロゲンのような置換基(たとえば、ラジカル当たり1〜4個の置換基)を含むラジカルを意味する。
組成物は、これらの添加剤を含んでいるとき、組成物中の添加剤がそれらの正常な付随機能を示すのに有効な量で一般的に基油に混入させる。そのような添加剤の代表的な有効量を表1に示す。
完全に調合されたSAE5W−20GF−3自動車ガソリン調合物中の本発明のオキサジアゾールの抗摩耗特性を4ボール摩耗試験においてASTM D4172試験条件下で検討した。試験した完全に調合された潤滑油には、運転中の機関内の環境をシミュレートする助けとするために1重量%のクメンヒドロペルオキシドも含めた。添加剤を自動車ガソリン調合物(表2における説明を参照)中での有効性について試験し、ジアルキルジチオリン酸亜鉛含有及び非含有の同じ調合物と比較した。表3において、試験結果の数値(平均摩耗きず直径、mm)は有効性の増加とともに低下した。
Claims (17)
- 潤滑剤が潤滑油である請求項1に記載の組成物。
- 炭化水素が直鎖アルキル、枝分れ鎖アルキル、飽和又は不飽和環構造を含むアルキル、完全に飽和した炭化水素(アルキル)鎖又は部分的に不飽和の炭化水素(アルキル)鎖である請求項1に記載の組成物。
- 炭化水素が直鎖アルキル、枝分れ鎖アルキル、飽和又は不飽和環構造を含むアルキル、完全に飽和した炭化水素(アルキル)鎖又は部分的に不飽和の炭化水素(アルキル)鎖である請求項2に記載の組成物。
- R1が1〜22個の炭素原子のアルキル鎖である請求項1に記載の組成物。
- R1が1〜22個の炭素原子のアルキル鎖である請求項2に記載の組成物。
- R1が脂肪酸又は脂肪酸の混合物に基づいている請求項5に記載の組成物。
- R1が脂肪酸又は脂肪酸の混合物に基づいている請求項6に記載の組成物。
- R1が、鎖内にエーテル酸素、スルフィド硫黄、エステル、アミド及びアミン窒素からなる群から選択される少なくとも1つのメンバーを含む1〜30個の直鎖炭素の官能基化炭化水素鎖である請求項1に記載の組成物。
- R1が、鎖内にエーテル酸素、スルフィド硫黄、エステル、アミド及びアミン窒素からなる群から選択される少なくとも1つのメンバーを含む1〜30個の直鎖炭素の官能基化炭化水素鎖である請求項2に記載の組成物。
- 5−アルキル−2−メルカプト−1,3,4−オキサジアゾールが0.01〜10重量%の範囲の濃度で存在する請求項1に記載の組成物。
- 分散剤、界面活性剤、腐食/さび止め剤、ジアルキルジチオリン酸亜鉛、VI向上剤、流動点降下剤、酸化防止剤及び摩擦緩和剤からなる群から選択される少なくとも1種の添加剤をさらに含む請求項1に記載の組成物。
- 分散剤、界面活性剤、腐食/さび止め剤、ジアルキルジチオリン酸亜鉛、VI向上剤、流動点降下剤、酸化防止剤及び摩擦緩和剤からなる群から選択される少なくとも1種の添加剤をさらに含む請求項2に記載の組成物。
- ジチオリン酸ジアルキル亜鉛、ジチオリン酸ジアリール亜鉛及びその混合物からなる群から選択される少なくとも1つのメンバーをさらに含む請求項1に記載の組成物。
- ジチオリン酸ジアルキル亜鉛、ジチオリン酸ジアリール亜鉛及びその混合物からなる群から選択される少なくとも1つのメンバーをさらに含む請求項2に記載の組成物。
- アルキル化ジフェニルアミン、立体的に込み合ったアルキル化フェノール、立体的に込み合ったアルキル化フェノールエステル及びジチオカルバミン酸モリブデンからなる群から選択される少なくとも1種の添加物をさらに含む請求項1に記載の組成物。
- アルキル化ジフェニルアミン、立体的に込み合ったアルキル化フェノール、立体的に込み合ったアルキル化フェノールエステル及びジチオカルバミン酸モリブデンからなる群から選択される少なくとも1種の添加物をさらに含む請求項2に記載の組成物。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US09/872,722 US6551966B2 (en) | 2001-06-01 | 2001-06-01 | Oxadiazole additives for lubricants |
PCT/US2002/016264 WO2002099020A1 (en) | 2001-06-01 | 2002-05-24 | Oxadiazole additives for lubricants |
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Publication Number | Publication Date |
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JP2004528476A JP2004528476A (ja) | 2004-09-16 |
JP4070715B2 true JP4070715B2 (ja) | 2008-04-02 |
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Application Number | Title | Priority Date | Filing Date |
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JP2003502130A Expired - Fee Related JP4070715B2 (ja) | 2001-06-01 | 2002-05-24 | 潤滑剤のオキサジアゾール添加剤 |
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Country | Link |
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US (2) | US6551966B2 (ja) |
EP (1) | EP1392805B1 (ja) |
JP (1) | JP4070715B2 (ja) |
CN (1) | CN1258584C (ja) |
AT (1) | ATE335066T1 (ja) |
BR (1) | BR0210120A (ja) |
CA (1) | CA2448754A1 (ja) |
DE (1) | DE60213590T2 (ja) |
MX (1) | MXPA03011028A (ja) |
WO (1) | WO2002099020A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US6887835B1 (en) | 2002-07-09 | 2005-05-03 | Crompton Corporation | Silane additives for lubricants and fuels |
US7399734B2 (en) * | 2003-07-22 | 2008-07-15 | Crompton Corporation | Polysiloxane additives for lubricants and fuels |
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2001
- 2001-06-01 US US09/872,722 patent/US6551966B2/en not_active Expired - Lifetime
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2002
- 2002-05-24 DE DE60213590T patent/DE60213590T2/de not_active Expired - Lifetime
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DE60213590D1 (de) | 2006-09-14 |
US20030008784A1 (en) | 2003-01-09 |
US6551966B2 (en) | 2003-04-22 |
CA2448754A1 (en) | 2002-12-12 |
EP1392805A1 (en) | 2004-03-03 |
WO2002099020A1 (en) | 2002-12-12 |
DE60213590T2 (de) | 2007-10-25 |
US20030130141A1 (en) | 2003-07-10 |
CN1599787A (zh) | 2005-03-23 |
ATE335066T1 (de) | 2006-08-15 |
US6846781B2 (en) | 2005-01-25 |
EP1392805B1 (en) | 2006-08-02 |
MXPA03011028A (es) | 2004-03-19 |
BR0210120A (pt) | 2004-06-08 |
JP2004528476A (ja) | 2004-09-16 |
CN1258584C (zh) | 2006-06-07 |
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