JP2008024937A5 - - Google Patents

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JP2008024937A5
JP2008024937A5 JP2007187899A JP2007187899A JP2008024937A5 JP 2008024937 A5 JP2008024937 A5 JP 2008024937A5 JP 2007187899 A JP2007187899 A JP 2007187899A JP 2007187899 A JP2007187899 A JP 2007187899A JP 2008024937 A5 JP2008024937 A5 JP 2008024937A5
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Japan
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oil composition
lubricating oil
crankcase
composition
polyalkenyl
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JP2007187899A
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JP5374842B2 (ja
JP2008024937A (ja
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Claims (6)

  1. リンの原子として表わして0.09質量%以下のリン含量、硫黄の原子として表わして0.3質量%以下の硫黄含量、及び1質量%以下の硫酸灰分含量を有する内燃機関クランクケース潤滑油組成物であって、その組成物が、夫々少量の下記の添加剤成分:
    A.潤滑油組成物中の唯一の窒素含有無灰分散剤であり、潤滑油組成物に0.03〜0.07質量%の窒素を与える、ポリアルケニル置換モノ又はジカルボン酸、その酸無水物又はエステルの少なくとも一種の油溶性又は油分散性窒素含有誘導体であって、前記ポリアルケニル置換モノ又はジカルボン酸又はエステルは、専ら熱“エン”反応によりポリアルケンから生成される前記油溶性又は油分散性窒素含有誘導体、
    B.潤滑油組成物中で唯一の過塩基性金属清浄剤系である、少なくとも一種の油溶性又は油分散性過塩基性アルカリ土類金属スルホネート、及び
    C.少なくとも一種の粘度改質剤
    を含み、又はこれらを混合することにより生成される、前記組成物。
  2. 分散剤(A)中のポリアルケニル基がポリイソブテニル基である、請求項1記載の組成物。
  3. 清浄剤系中のアルカリ土類金属がカルシウムである、請求項1又は2記載の組成物。
  4. 粘度改質剤がオレフィンコポリマーである、請求項1〜3のいずれか1項に記載の組成物。
  5. 請求項1〜4のいずれか1項に記載の潤滑油組成物をクランクケースに供給することを含む、乗用車内燃機関のクランクケースの潤滑方法。
  6. ポリアルケニル置換モノ又はジカルボン酸、その酸無水物、又はエステルが、ポリアルケンから塩素化反応により生成される対応の分散剤組成物を含む対応の潤滑油組成物の使用と比較して、乗用車内燃機関のクランクケース潤滑においてカム及びリフター磨耗、ピストン付着物及び/又は潤滑剤粘度を請求項1〜4のいずれか1項に記載の潤滑油組成物により改良するための、請求項1又は2に規定する分散剤の使用。
JP2007187899A 2006-07-19 2007-07-19 潤滑油組成物 Active JP5374842B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06117521 2006-07-19
EP06117521.2 2006-07-19

Related Child Applications (1)

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JP2013132838A Division JP2013177642A (ja) 2006-07-19 2013-06-25 潤滑油組成物

Publications (3)

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JP2008024937A JP2008024937A (ja) 2008-02-07
JP2008024937A5 true JP2008024937A5 (ja) 2010-07-22
JP5374842B2 JP5374842B2 (ja) 2013-12-25

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US (1) US9012382B2 (ja)
JP (2) JP5374842B2 (ja)
CN (1) CN101108994B (ja)
CA (1) CA2594029C (ja)
SG (1) SG139671A1 (ja)

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