JP2012518704A - 添加剤としてイオン液体を使用することにより、配合潤滑油中のハイドロパーオキサイドによって誘起される酸化を制御する方法 - Google Patents
添加剤としてイオン液体を使用することにより、配合潤滑油中のハイドロパーオキサイドによって誘起される酸化を制御する方法 Download PDFInfo
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Abstract
Description
配合(又は処方)5W30エンジンオイルのハイドロパーオキサイド誘起酸化に対する抵抗性を評価した。試験したエンジンオイルは、約9重量%の摩擦調整剤、分散剤、洗剤、消泡剤、酸化防止剤を含有する添加剤処理アドパックを含有し、9重量%の処理レベルZDDP(0.1重量%)およびMolyDTC(0.1重量%)を含んでいた。この油の別の試料に、それぞれ0.1重量%の様々なイオン液体(IL)を添加し、各混合物の酸化性能を評価した。
他の一連の実験で、配合5W30潤滑油に、0.1重量%の様々なイオン液体を添加したが、イオン液体は、ZDDPかMoDTCのいずれかとの予備混合物として添加した。5W30潤滑油に添加されたアドパックにおいて、予備混合物が添加された実施例の場合、イオン液体予備混合物を介して油に添加されたZDDPまたはMoDTCの量が、予備混合物が存在しなかったときの、対照油に存在するZDDPまたはMoDTCの量と同じとなるように、アドパックに存在した0.1重量%のZDDPまたは0.1重量%のMoDTCは排除された。用いたZDDPは、第2級C3〜C6アルキルZDDPであり、MolyDTCは、C6アルキルMolyトリマーDTCであった。結果を表2に示す。
Claims (11)
- 基油と、添加量の抗酸化剤、耐摩耗剤、洗剤または分散剤から選択される少なくとも1種の添加剤とを含む潤滑油によって潤滑された内燃機関における酸化を減少させる方法であって、前記潤滑油に、添加量の1種以上のイオン液体を添加することによって減少させる方法。
- 前記添加量のイオン液体が、前記潤滑油の総量を基準として、約0.01〜5.0重量%の範囲内である、請求項1に記載の方法。
- 前記イオン液体が、イオン結合により結合したカチオンとアニオンで形成された塩である、請求項2に記載の方法。
- 前記カチオンが、
前記アニオンが、BX4 −、Al2X7 −、Ga2X7 −、PX6 −(式中、Xは、ハロゲンである)、R17OSO3 −、R17SO3 −、SO4 −2、PO4 −3、NO3 −、(CN)2N−、R17 2PO4 −、R18COO−、R17OCOO−、R18PO2 −、SCN−、HO(R18)COO−、HS(R18)COO−、R18S−、(CnF(2n+1ーx)Hx)SO3 −、(CnF(2n+1−x)Hx)COO−、F(HF)n −、((CnF(2n+1−x)Hx)Y’Oz)3C−、((CnF(2n+1−x)Hx)Y’Oz)2N−(式中、Y’ は、炭素原子または硫黄原子であり、2つ以上のY’が存在するとき、それらは、互いに同一でも異なっていてもよく、複数の((CnF(2n+1−x)Hx)Y’Oz基は、互いに同一でも異なっていてもよく、nは、整数であり、xは、0〜13の整数であり、zは、Y’が炭素原子のとき、1〜3の整数であり、Y’が硫黄原子のとき、0〜4である)、B(CmY’’(2m+1)4 −、P(CmY’’(2m+1))6 −(式中、Y’’は、水素原子またはフッ素原子であり、複数のY’’が存在するとき、それらは互いに同一でも異なっていてもよく、複数の(CmY’’(2m+1))基は、互いに同一でも異なっていてもよく、mは、0〜6の整数であり、R17は、水素、C1〜C10アルキル、C6〜C10アリールまたはアルキルまたはアルキルアリールであり、R18は、C1〜C10アルキル、C6〜C10アリール、C7〜C12アリールアルキルまたはC7〜C12アルキルアリールである)、
- 前記イオン液体が、亜鉛またはモリブデンジアルキルジチオホスフェートあるいは亜鉛またはモリブデンジアルキルジチオカルバメートと予備混合される、請求項1〜6のいずれかに記載の方法。
- 前記亜鉛またはモリブデンジアルキルジチオホスフェートあるいは亜鉛またはモリブデンジアルキルジチオカルバメートの前記アルキル基は、同一でも異なっていてもよく、C3〜C12第1級および第2級アルキル基から選択される、請求項7に記載の方法。
- 前記イオン液体と、前記亜鉛またはモリブデンジアルキルジチオホスフェートあるいは亜鉛またはモリブデンジアルキルジチオカルバメートは、1:10〜10:1の比率で組み合わされる、請求項7に記載の方法。
- 前記イオン液体と、前記亜鉛またはモリブデンジアルキルジチオカルバメートは、
(a)前記イオン液体のみを30〜100℃の温度に加熱すること、
(b)前記加熱したイオン液体に、前記亜鉛またはモリブデンジアルキルジチオホスフェート(DDP)あるいは亜鉛またはモリブデンジアルキルジチオカルバメート(DTC)を添加すること、
(c)(b)の前記混合物を、50〜120℃の温度に、前記イオン液体と、前記亜鉛またはモリブデンDDPあるいはDTCが相互作用するために十分な時間、加熱すること
によって予備混合される、請求項7に記載の方法。 - 前記潤滑油中の亜鉛またはモリブデンDDPあるいはDTCの唯一の供給源が、前記予備混合物からである、請求項7に記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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US20816409P | 2009-02-20 | 2009-02-20 | |
US61/208,164 | 2009-02-20 | ||
US12/658,564 US8278253B2 (en) | 2009-02-20 | 2010-02-05 | Method for the control of hydroperoxide-induced oxidation in formulated lubricating oils by use of ionic liquids as additives |
US12/658,564 | 2010-02-05 | ||
PCT/US2010/000459 WO2010096169A1 (en) | 2009-02-20 | 2010-02-17 | Method for the control of hydroperoxide-induced oxidation in formulated lubricating oils by use of ionic liquids as additives |
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2010
- 2010-02-05 US US12/658,564 patent/US8278253B2/en active Active
- 2010-02-17 JP JP2011551061A patent/JP2012518704A/ja active Pending
- 2010-02-17 WO PCT/US2010/000459 patent/WO2010096169A1/en active Application Filing
- 2010-02-17 SG SG2011055100A patent/SG173477A1/en unknown
- 2010-02-17 EP EP10705676.4A patent/EP2398880B1/en not_active Not-in-force
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WO2005035702A1 (ja) * | 2003-10-10 | 2005-04-21 | Idemitsu Kosan Co., Ltd. | 潤滑油 |
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JP2013216717A (ja) * | 2012-04-04 | 2013-10-24 | Toyota Motor Corp | 摺動構造 |
JP2019172729A (ja) * | 2018-03-27 | 2019-10-10 | Emgルブリカンツ合同会社 | 潤滑油組成物 |
Also Published As
Publication number | Publication date |
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SG173477A1 (en) | 2011-09-29 |
WO2010096169A1 (en) | 2010-08-26 |
EP2398880B1 (en) | 2015-03-25 |
US20100216675A1 (en) | 2010-08-26 |
EP2398880A1 (en) | 2011-12-28 |
US8278253B2 (en) | 2012-10-02 |
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