JP5455170B2 - ヒドロキシカルボン酸から誘導される化合物を含む潤滑組成物 - Google Patents
ヒドロキシカルボン酸から誘導される化合物を含む潤滑組成物 Download PDFInfo
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- JP5455170B2 JP5455170B2 JP2011539789A JP2011539789A JP5455170B2 JP 5455170 B2 JP5455170 B2 JP 5455170B2 JP 2011539789 A JP2011539789 A JP 2011539789A JP 2011539789 A JP2011539789 A JP 2011539789A JP 5455170 B2 JP5455170 B2 JP 5455170B2
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Description
例えば、本発明は以下の項目を提供する。
(項目1)
(a)ヒドロキシカルボン酸の誘導体と(b)潤滑粘度の油とを含む潤滑組成物をリミテッドスリップディファレンシャルに供給することを含む、該リミテッドスリップディファレンシャルを潤滑する方法。
(項目2)
前記ヒドロキシカルボン酸の誘導体がヒドロキシポリカルボン酸の誘導体である、項目1に記載の方法。
(項目3)
前記ヒドロキシポリカルボン酸の誘導体が、ヒドロキシカルボン酸ジエステル、ヒドロキシカルボン酸ジアミド、ヒドロキシカルボン酸イミド、ヒドロキシカルボン酸ジイミド、ヒドロキシカルボン酸エステルアミド、ヒドロキシカルボン酸エステルイミド及びヒドロキシカルボン酸イミドアミドからなる群から選択される、項目2に記載の方法。
(項目4)
前記ヒドロキシポリカルボン酸の誘導体が、ヒドロキシカルボン酸イミド、ヒドロキシカルボン酸ジイミド、ヒドロキシカルボン酸エステルイミド及びヒドロキシカルボン酸イミドアミドからなる群から選択される、先行する項目2から3のいずれかに記載の方法。
(項目5)
前記ヒドロキシポリカルボン酸の誘導体が、ヒドロキシカルボン酸イミド及びヒドロキシカルボン酸ジイミドからなる群から選択される、先行する項目2から4のいずれかに記載の方法。
(項目6)
前記ヒドロキシポリカルボン酸の誘導体が、酒石酸の誘導体、クエン酸のイミド誘導体、又はその混合物である、先行する項目2から5のいずれかに記載の方法。
(項目7)
前記ヒドロキシポリカルボン酸の誘導体が、酒石酸のイミド誘導体、クエン酸のイミド誘導体、又はその混合物である、先行する項目2から6のいずれかに記載の方法。
(項目8)
前記ヒドロキシポリカルボン酸の誘導体が、酒石酸のイミド誘導体又はその混合物である、先行する項目2から7のいずれかに記載の方法。
(項目9)
前記ヒドロキシカルボン酸の誘導体が、前記潤滑組成物の0.1重量%から5重量%、又は0.2重量%から3重量%、又は0.2重量%超から3重量%の範囲の量で存在する、先行する項目1から8のいずれかに記載の方法。
(項目10)
硫黄含有化合物を更に含む、先行する項目1から9のいずれかに記載の方法。
(項目11)
前記硫黄含有化合物が、ジメルカプトチアジアゾール若しくは誘導体又はその混合物である、項目10に記載の方法。
(項目12)
前記硫黄含有化合物が、ポリスルフィド又は硫化オレフィンである、項目10に記載の方法。
(項目13)
前記潤滑組成物がリン含有化合物を更に含む、先行する項目1から12のいずれかに記載の方法。
(項目14)
前記リン含有化合物がリン酸エステルのアミン塩である、項目13に記載の方法。
(項目15)
前記リン酸エステルのアミン塩が、(i)リン酸のヒドロキシ置換ジエステル又は(ii)リン酸化されたリン酸のヒドロキシ置換ジエステル若しくはリン酸化されたリン酸のヒドロキシ置換トリエステル、のどちらかのアミン塩である、項目14に記載の方法。
(項目16)
前記潤滑組成物がホウ素含有化合物を更に含む、先行する項目1から15のいずれかに記載の方法。
(項目17)
前記ホウ素含有化合物が、ホウ酸化分散剤、ホウ酸エステル又はホウ酸化リン脂質である、項目16に記載の方法。
(項目18)
前記潤滑組成物が、0.3重量%から5重量%、又は0.8重量%から2.5重量%の範囲の硫黄含有量を有する、先行する項目1から17のいずれかに記載の方法。
(項目19)
前記潤滑組成物がトップ処理濃縮物である、先行する項目1から18のいずれかに記載の方法。
(項目20)
前記潤滑組成物が完全調合済み流体である、先行する項目1から19のいずれかに記載の方法。
(項目21)
許容レベルの(i)潤滑剤熱安定性、(ii)潤滑剤酸化安定性、(iii)摩擦係数、(iv)燃費、(v)付着抑制、(vi)シール適合性、(vii)清浄度、及び(viii)チャタリング(異音)の少なくとも1つを提供するための、リミテッドスリップディファレンシャルにおける先行する項目1から19のいずれかに記載のヒドロキシカルボン酸の誘導体の使用。
(項目22)
許容レベルの摩擦を提供するための、リミテッドスリップディファレンシャルにおける任意の先行する項目1から19に記載のヒドロキシカルボン酸の誘導体の使用。
本発明の潤滑組成物は、ヒドロキシカルボン酸の誘導体(又はヒドロキシカルボン酸から誘導される化合物)又はその混合物を含む。本明細書では「の誘導体」という表現は、指定の酸を出発材料として使用して実際に調製されたか否かにかかわらず、文字どおりに指定ヒドロキシカルボン酸「から誘導される」材料、及び潜在的にヒドロキシカルボン酸「から誘導可能な」材料を包含することを意味する。ヒドロキシカルボン酸の誘導体は、エステル、アミド、イミド、複数のかかる官能基の混合物など、酸基及び/又はアルコール基の反応によって調製される、又は調製することができる、材料を含む。
n’は、式(1b)では0から10、式(1a)では1から10であり、
pは1から5であり、
Y及びY’は独立に、−O−、>NH、>NR3、又は(1b)中のYとY’基の両方若しくは(1a)中の2個のY基が一緒になって2個の>C=O基の間にR1−N<基を形成することによって形成されるイミド基であり、
R1及びR2は独立に、典型的には1から150、又は4から30、又は8から15個の炭素原子を含む、ヒドロカルビル基であり、
R3はヒドロカルビル基であり、
R4及びR5は独立に、(アシル基などの)ケト含有基、エステル基又はヒドロカルビル基、又は−OR6、又は−CO2R6、又は−OH(典型的には、Xが>CR4R5であるときには1個以下の−OH)であり、
R6は独立に、典型的には1から150、又は4から30、又は8から15個の炭素原子を含む、水素又はヒドロカルビル基である。
一実施形態においては、潤滑組成物は、さらに、リン酸エステルのアミン塩を含む。リン酸エステルアミン塩の調製に利用されるリン酸は、リン酸又はチオリン酸のいずれかであり得る。
潤滑組成物は、潤滑粘度の油を含む。かかる油としては、天然及び合成油、水素化分解、水素化及び水素化仕上げ(hydrofinishing)から誘導される油、未精製、精製及び再精製油、並びにその混合物が挙げられる。
本発明の組成物は、場合によっては、少なくとも1種類の他の性能添加剤を更に含む。他の性能添加剤としては、分散剤、金属不活性化剤、洗浄剤、粘度調整剤、(典型的には、ホウ素含有及び/又は硫黄含有及び/又はリン含有)極圧剤、耐摩耗剤、(ヒンダードフェノール、アミン系酸化防止剤、又はモリブデン化合物などの)酸化防止剤、腐食防止剤、抑泡剤、解乳化剤、流動点降下剤、シール膨潤剤、摩擦調整剤及びその混合物が挙げられる。
一実施形態においては、潤滑組成物は、さらに、1種類以上の粘度調整剤を含む。
極圧剤としては、ホウ素及び/又は硫黄及び/又はリンを含む化合物が挙げられる。
リミテッドスリップディファレンシャルは、典型的には、差動ハウジング又はキャリア中に配置された潤滑剤から分離された内蔵(self−contained)潤滑剤供給物を取り込む。リミテッドスリップディファレンシャルの内蔵潤滑剤は、一般に、手動変速装置流体又は自動変速装置流体に供給される潤滑剤とは異なる。リミテッドスリップディファレンシャルを含まない手動変速システムと自動変速システムの両方では、典型的には、1種類の潤滑剤で変速装置構成部品のすべてを潤滑するのに十分である。
トルク信号変化 NVH評点
0から0.02の摩擦係数単位 0
0.02から0.04の摩擦係数単位 1
0.04から0.06の摩擦係数単位 2
0.06から0.08の摩擦係数単位 3
0.08から0.10の摩擦係数単位 4
0.10から0.12の摩擦係数単位 5
0.12から0.14の摩擦係数単位 6
0.14から0.16の摩擦係数単位 7
これらの評点は、1つの加圧及び速度設定で終了したすべてのサイクルに対して、次いで試験全体に対して、合計される。最大NVH評点は、9600ポイントである(6圧力×4速度×25繰り返し×8NVH評点=4800、耐久性評価前後で×2=9600)。これは、極めて低い摩擦性能と考えられる。最小NVH評点は0ポイントである。これは、優れた摩擦性能と考えられる。EX1の耐久後NVH評点は152であり、CE1は565である。EX1及びCE1の合計NVH評点はそれぞれ471及び728である。
(ii)置換炭化水素置換基、すなわち、本発明の文脈において、置換基の主として炭化水素的な性質を変えない非炭化水素基を含む置換基(例えば、ハロ(特にクロロ及びフルオロ)、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、ニトロソ及びスルホキシ)、
(iii)ヘテロ置換基、すなわち、主として炭化水素的な性質を有するが、本発明の文脈において、環又は鎖中の炭素以外を含み、この環又は鎖中はそれ以外は炭素原子で構成される、置換基、並びに
(iv)ヘテロ原子は、硫黄、酸素、窒素を含み、ピリジル、フリル、チエニル及びイミダゾリルとして置換基を包含する。一般に、2個以下、好ましくは1個以下の非炭化水素置換基が、ヒドロカルビル基中の10個の炭素原子ごとに存在し、典型的には、ヒドロカルビル基中に非炭化水素置換基は存在しない。
Claims (19)
- (a)ヒドロキシカルボン酸の誘導体と(b)潤滑粘度の油とを含む潤滑組成物をリミテッドスリップディファレンシャルに供給することを含む、該リミテッドスリップディファレンシャルを潤滑する方法であって、
前記ヒドロキシカルボン酸の誘導体は、式(1a):
n’は、式(1a)において1から10であり、
pは1から5であり、
Yは、(1a)中の2個のY基が一緒になって2個の>C=O基の間にR1−N<基を形成することによってイミド基を形成し、
Xは独立に、−CH2−、>CHR4、>CR4R5、>CHOR6、>C(OH)CO2R6、>C(CO2R6)2、−CH3、−CH2R4若しくは−CHR4R5、−CH2OR6、−CH(CO2R6)2、≡C−R6(式中、≡は3原子価に等しい)、又はその混合物であり、式(1a)の原子価を満たし(典型的には、式(1a)の化合物は、ヒドロキシルを含有する少なくとも1個のXを有する(すなわち、>CHOR6、式中、R6は水素である。)。)、
R 1 は独立に、典型的には1から150、又は4から30、又は8から15個の炭素原子を含む、ヒドロカルビル基であり、
R 4及びR5は独立に、ケト含有基、エステル基又はヒドロカルビル基、又は−OR6、又は−CO2R6、又は−OHであり、
R6は独立に、典型的には1から150、又は4から30、又は8から15個の炭素原子を含む、水素又はヒドロカルビル基である。)
で表わされる、方法。 - 前記ヒドロキシカルボン酸の誘導体がヒドロキシポリカルボン酸の誘導体である、請求項1に記載の方法。
- 前記ヒドロキシポリカルボン酸の誘導体が、ヒドロキシカルボン酸イミド、ヒドロキシカルボン酸ジイミド、ヒドロキシカルボン酸エステルイミド及びヒドロキシカルボン酸イミドアミドからなる群から選択される、請求項2に記載の方法。
- 前記ヒドロキシポリカルボン酸の誘導体が、ヒドロキシカルボン酸イミド及びヒドロキシカルボン酸ジイミドからなる群から選択される、先行する請求項2から3のいずれかに記載の方法。
- 前記ヒドロキシポリカルボン酸の誘導体が、酒石酸の誘導体、クエン酸のイミド誘導体、又はその混合物である、先行する請求項2から4のいずれかに記載の方法。
- 前記ヒドロキシポリカルボン酸の誘導体が、酒石酸のイミド誘導体、クエン酸のイミド誘導体、又はその混合物である、先行する請求項2から5のいずれかに記載の方法。
- 前記ヒドロキシポリカルボン酸の誘導体が、酒石酸のイミド誘導体又はその混合物である、先行する請求項2から6のいずれかに記載の方法。
- 前記ヒドロキシカルボン酸の誘導体が、前記潤滑組成物の0.1重量%から5重量%の範囲の量で存在する、先行する請求項1から7のいずれかに記載の方法。
- 前記ヒドロキシカルボン酸の誘導体が、前記潤滑組成物の0.2重量%から3重量%の範囲の量で存在する、請求項8のいずれかに記載の方法。
- 前記ヒドロキシカルボン酸の誘導体が、前記潤滑組成物の0.2重量%超から3重量%の範囲の量で存在する、請求項8に記載の方法。
- 硫黄含有化合物を更に含む、先行する請求項1から10のいずれかに記載の方法。
- 前記硫黄含有化合物が、ジメルカプトチアジアゾール若しくは誘導体又はその混合物である、請求項11に記載の方法。
- 前記硫黄含有化合物が、ポリスルフィド又は硫化オレフィンである、請求項11に記載の方法。
- 前記潤滑組成物がリン含有化合物を更に含み、前記リン含有化合物がリン酸エステルのアミン塩である、先行する請求項1から13のいずれかに記載の方法。
- 前記リン酸エステルのアミン塩が、(i)リン酸のヒドロキシ置換ジエステル又は(ii)リン酸化されたリン酸のヒドロキシ置換ジエステル若しくはリン酸化されたリン酸のヒドロキシ置換トリエステル、のどちらかのアミン塩である、請求項14に記載の方法。
- 前記潤滑組成物がホウ素含有化合物を更に含み、前記ホウ素含有化合物が、ホウ酸化分散剤、ホウ酸エステル又はホウ酸化リン脂質である、先行する請求項1から15のいずれかに記載の方法。
- 前記ヒドロキシカルボン酸は、モノヒドロキシモノカルボン酸を含む、請求項1に記載の方法。
- 前記モノヒドロキシモノカルボン酸は、グリコール酸を含む、請求項15に記載の方法。
- 前記ヒドロキシカルボン酸の誘導体は、アミドである、請求項1に記載の方法。
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KR101496484B1 (ko) | 2007-05-24 | 2015-03-09 | 더루우브리졸코오포레이션 | 하이드록시폴리카르복시산 유도체 및 몰리브덴 화합물을 기반으로 하는 무회분 내마모제를 함유하는 윤활 조성물 |
-
2009
- 2009-12-08 CN CN201610028609.9A patent/CN105602652A/zh active Pending
- 2009-12-08 AU AU2009333576A patent/AU2009333576B2/en not_active Ceased
- 2009-12-08 CN CN200980156261XA patent/CN102307976A/zh active Pending
- 2009-12-08 CA CA2746319A patent/CA2746319C/en active Active
- 2009-12-08 EP EP09764995A patent/EP2367917A1/en not_active Withdrawn
- 2009-12-08 JP JP2011539789A patent/JP5455170B2/ja active Active
- 2009-12-08 WO PCT/US2009/067091 patent/WO2010077630A1/en active Application Filing
- 2009-12-08 KR KR1020117015289A patent/KR101679093B1/ko active IP Right Grant
- 2009-12-08 US US13/133,183 patent/US20120172265A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU2009333576A1 (en) | 2011-06-23 |
KR101679093B1 (ko) | 2016-11-23 |
CN105602652A (zh) | 2016-05-25 |
AU2009333576A2 (en) | 2011-06-30 |
CA2746319C (en) | 2017-09-19 |
JP2012511593A (ja) | 2012-05-24 |
EP2367917A1 (en) | 2011-09-28 |
CN102307976A (zh) | 2012-01-04 |
US20120172265A1 (en) | 2012-07-05 |
CA2746319A1 (en) | 2010-07-08 |
WO2010077630A1 (en) | 2010-07-08 |
AU2009333576B2 (en) | 2016-05-26 |
KR20110106865A (ko) | 2011-09-29 |
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