JPH07316577A - Lubricant oil composition - Google Patents

Lubricant oil composition

Info

Publication number
JPH07316577A
JPH07316577A JP6131165A JP13116594A JPH07316577A JP H07316577 A JPH07316577 A JP H07316577A JP 6131165 A JP6131165 A JP 6131165A JP 13116594 A JP13116594 A JP 13116594A JP H07316577 A JPH07316577 A JP H07316577A
Authority
JP
Japan
Prior art keywords
weight
lubricating oil
alkylsalicylate
composition
amount
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6131165A
Other languages
Japanese (ja)
Inventor
Michiya Yamada
美智也 山田
Satoshi Asano
聡 浅野
Hirotaka Tomizawa
広隆 富沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tonen General Sekiyu KK
Original Assignee
Tonen Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tonen Corp filed Critical Tonen Corp
Priority to JP6131165A priority Critical patent/JPH07316577A/en
Priority to PCT/US1995/006620 priority patent/WO1996037582A1/en
Priority to CA002218811A priority patent/CA2218811C/en
Publication of JPH07316577A publication Critical patent/JPH07316577A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/48—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring
    • C10M129/54—Carboxylic acids; Salts thereof having carboxyl groups bound to a carbon atom of a six-membered aromatic ring containing hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • C10M133/56—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
    • C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/144—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings containing hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/146—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings having carboxyl groups bound to carbon atoms of six-membeered aromatic rings having a hydrocarbon substituent of thirty or more carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/26—Overbased carboxylic acid salts
    • C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/086—Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/26—Amines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
    • C10M2219/089—Overbased salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/045—Metal containing thio derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/12—Groups 6 or 16
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/044—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for manual transmissions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/046—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for traction drives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/251—Alcohol fueled engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/28—Rotary engines

Abstract

PURPOSE:To obtain a lubricant composition having excellent low-wearing disposition, retaining the sustainability of such low-wearing disposition over a long period, excellent in frictional characteristics and heat resistance, thus suitably usable as a lubricating oil for internal combustion engines, automatic speed change gears, bumpers or power steering (esp. for internal combustion engines). CONSTITUTION:This composition is obtained by incorporating a lubricant base oil with a mixture of 100-50wt.% of oxymolybdenum sulfide dithiocarbamate, zinc dialkyldithiophosphate and calcium alkylsalicylate and 0-50wt.% of magnesium alkylsalicylate. Based on the whole weight of the composition, the molybdenum derived from the oxymolybdenum sulfide dithiocarbamate stands at 200-1000ppm, the phosphorus derived from the zinc dialkyldithiophosphate 0.04-0.15wt.%, and a total of the calcium alkylsalicylate and magnesium alkylsalicylate 1-10wt.%.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、新規な潤滑油組成物に
関する。さらに詳しくは、本発明は、優れた低摩耗性及
び低摩擦性を有し、かつ、長期にわたる低摩擦性の持続
性を有する内燃機関、自動変速機、緩衝器、パワーステ
アリングなどの潤滑油、特に内燃機関用潤滑油として好
適に用いることができる潤滑油組成物に関するものであ
る。FIELD OF THE INVENTION The present invention relates to a novel lubricating oil composition. More specifically, the present invention has a lubricating oil for an internal combustion engine, an automatic transmission, a shock absorber, a power steering, etc., which has excellent low wear properties and low friction properties, and has long-lasting low friction properties. In particular, the present invention relates to a lubricating oil composition that can be suitably used as a lubricating oil for internal combustion engines.

【０００２】[0002]

【従来の技術】内燃機関や、自動変速機、緩衝器、パワ
ーステアリングなどの駆動系機器、ギヤなどには、その
作動を円滑にするために潤滑油が用いられている。特に
内燃機関用潤滑油は、主としてピストンリングとシリン
ダライナ、クランク軸やコネクティングロッドの軸受、
カムとバルブリフタを含む動弁機構など、各種摺動部分
の潤滑のほか、エンジン内の冷却や燃焼生成物の清浄分
散、さらには錆や腐食を防止するなどの作用を果たす。
このように、内燃機関用潤滑油には多様な性能が要求さ
れ、しかも近年、内燃機関の高性能化、高出力化、運転
条件の過酷化などに伴い、高度な性能が要求されてきて
いる。したがって、内燃機関用潤滑油には、このような
要求性能を満たすために、例えば、摩耗防止剤、金属清
浄剤、無灰分散剤、酸化防止剤などの種々の添加剤が配
合されている。内燃機関用潤滑油の基本的機能として、
特に、あらゆる条件下で機関を円滑に作用させ、摩耗、
焼付き防止を行うことが重要である。エンジン潤滑部
は、大部分が流体潤滑状態にあるが、動弁系やピストン
の上下死点などでは境界潤滑状態となりやすく、このよ
うな境界潤滑状態における摩耗防止性は、一般にジチオ
りん酸亜鉛やジチオカルバミン酸亜鉛の添加によって付
与されている。ところで、内燃機関では、潤滑油が関与
する摩擦部分でのエネルギー損失が大きいために、摩擦
損失低減や燃費低減対策として、摩擦調整剤が潤滑油に
添加されている。この摩擦調整剤としては、例えば、モ
リブデン化合物、りん酸エステルなどの極圧剤や、脂肪
酸エステル、アルキルアミンなどの油性剤に属する化合
物が一般に用いられている。しかしながら、摩擦調整剤
は使用開始初期には添加効果が認められるが、酸化劣化
などを受けるとその効果を喪失してしまうという問題が
ある。すなわち、摩耗調整剤の摩擦低減効果は、摩擦調
整剤以外の添加剤の影響を大きく受けるために、エンジ
ンの運転初期における低摩擦性能を長期にわたって維持
することが困難であった。2. Description of the Related Art Lubricating oil is used in internal combustion engines, automatic transmissions, shock absorbers, drive system devices such as power steering, gears, etc. in order to ensure smooth operation. In particular, lubricating oil for internal combustion engines is mainly used for piston rings and cylinder liners, bearings for crankshafts and connecting rods,
In addition to lubrication of various sliding parts such as valve mechanism including cam and valve lifter, it also functions to cool the engine, cleanly disperse combustion products, and prevent rust and corrosion.
As described above, lubricating oils for internal combustion engines are required to have various performances, and in recent years, high performances have been required as the performances, output power, and operating conditions of internal combustion engines have become more severe. . Therefore, various additives such as an antiwear agent, a metal detergent, an ashless dispersant, and an antioxidant are blended with the lubricating oil for an internal combustion engine in order to satisfy such required performance. As the basic function of lubricating oil for internal combustion engines,
In particular, the engine works smoothly under all conditions, wear,
It is important to prevent seizure. The engine lubrication part is mostly in a fluid lubrication state, but boundary lubrication is likely to occur at the valve operating system and the top and bottom dead center of the piston, and the wear preventing property in such a boundary lubrication state is generally zinc dithiophosphate or It is provided by the addition of zinc dithiocarbamate. By the way, in an internal combustion engine, since a large amount of energy is lost in a friction portion where the lubricating oil is involved, a friction modifier is added to the lubricating oil as a measure for reducing the friction loss and reducing the fuel consumption. As the friction modifier, for example, compounds that belong to extreme pressure agents such as molybdenum compounds and phosphoric acid esters and oily agents such as fatty acid esters and alkylamines are generally used. However, although an effect of addition of the friction modifier is recognized at the beginning of use, there is a problem that the effect is lost when it is subjected to oxidative deterioration. That is, since the friction reducing effect of the wear modifier is greatly influenced by additives other than the friction modifier, it is difficult to maintain the low friction performance in the early stage of engine operation for a long period of time.

【０００３】[0003]

【発明が解決しようとする課題】本発明は、このような
事情のもとで、エンジンの摩擦低減効果を長期にわたっ
て維持することができる潤滑油（エンジン油）を開発す
ることを目的としてなされたものである。Under the circumstances described above, the present invention has been made for the purpose of developing a lubricating oil (engine oil) capable of maintaining the engine friction reducing effect for a long period of time. It is a thing.

【０００４】[0004]

【課題を解決するための手段】本発明者らは、前記の好
ましい性質を有する潤滑油組成物を開発すべく鋭意研究
を重ねた結果、潤滑油基油に対して、特定のアルキル基
を有する硫化オキシモリブデンジチオカルバメート、特
定のアルキル基を有するジアルキルジチオりん酸亜鉛、
特定のアルキルサリチル酸塩、及び、所望により、ホウ
素含有コハク酸イミドを、それぞれ特定の割合で配合し
た潤滑油組成物が、その目的に適合しうることを見いだ
し、この知見に基づいて本発明を完成するに至った。す
なわち、本発明は、 （１）潤滑油基油に対して、（Ａ）炭化水素基の炭素数
が８〜１８の硫化オキシモリブデンジチオカルバメー
ト、（Ｂ）炭素数１〜１８の第一級アルキル基を有する
ジアルキルジチオりん酸亜鉛、又は炭素数１〜１８の第
一級アルキル基を有するジアルキルジチオりん酸亜鉛及
び炭素数１〜１８の第二級アルキル基を有するジアルキ
ルジチオりん酸亜鉛の混合物、及び（Ｃ）アルキルサリ
チル酸カルシウム１００〜５０重量％及びアルキルサリ
チル酸マグネシウム０〜５０重量％の混合物を配合した
潤滑油組成物であって、組成物全重量に基づき、硫化オ
キシモリブデンジチオカルバメートに由来するモリブデ
ンの量が２００〜１０００ppm（重量比）であり、ジア
ルキルジチオりん酸亜鉛に由来するりんの量が０.０４
〜０.１５重量％であり、アルキルサリチル酸カルシウ
ム及びアルキルサリチル酸マグネシウムの合計量が１〜
１０重量％であることを特徴とする潤滑油組成物、及
び、 （２）潤滑油基油に対して、（Ａ）炭化水素基の炭素数
が８〜１８の硫化オキシモリブデンジチオカルバメー
ト、（Ｂ）炭素数１〜１８の第一級アルキル基を有する
ジアルキルジチオりん酸亜鉛、又は炭素数１〜１８の第
一級アルキル基を有するジアルキルジチオりん酸亜鉛及
び炭素数１〜１８の第二級アルキル基を有するジアルキ
ルジチオりん酸亜鉛の混合物、（Ｃ）アルキルサリチル
酸カルシウム１００〜５０重量％及びアルキルサリチル
酸マグネシウム０〜５０重量％の混合物、及び（Ｄ）ホ
ウ素含有コハク酸イミドを配合した潤滑油組成物であっ
て、組成物全重量に基づき、硫化オキシモリブデンジチ
オカルバメートに由来するモリブデンの量が２００〜１
０００ppm（重量比）であり、ジアルキルジチオりん酸
亜鉛に由来するりんの量が０.０４〜０.１５重量％であ
り、アルキルサリチル酸カルシウム及びアルキルサリチ
ル酸マグネシウムの合計量が１〜１０重量％であり、ホ
ウ素含有コハク酸イミドに由来するホウ素の量が０.０
０５〜０.０６重量％であることを特徴とする潤滑油組
成物を提供するものである。DISCLOSURE OF THE INVENTION As a result of intensive studies to develop a lubricating oil composition having the above-mentioned preferable properties, the present inventors have found that the lubricating base oil has a specific alkyl group. Sulfurized oxymolybdenum dithiocarbamate, zinc dialkyldithiophosphate having a specific alkyl group,
It was found that a lubricating oil composition containing a specific alkyl salicylate and, if desired, a boron-containing succinimide in a specific ratio can meet the purpose, and based on this finding, the present invention was completed. Came to do. That is, the present invention relates to (1) a lubricating base oil, (A) a sulfurized oxymolybdenum dithiocarbamate having a hydrocarbon group having 8 to 18 carbon atoms, and (B) a primary alkyl group having 1 to 18 carbon atoms. Zinc dialkyldithiophosphate having a group, or a mixture of zinc dialkyldithiophosphate having a primary alkyl group having 1 to 18 carbon atoms and zinc dialkyldithiophosphate having a secondary alkyl group having 1 to 18 carbon atoms, And (C) a lubricating oil composition containing a mixture of 100 to 50% by weight of calcium alkylsalicylate and 0 to 50% by weight of magnesium alkylsalicylate, the molybdenum being derived from sulfurized oxymolybdenum dithiocarbamate based on the total weight of the composition. Is 200 to 1000 ppm (weight ratio), and the amount of phosphorus derived from zinc dialkyldithiophosphate is 0.04.
0.15% by weight, and the total amount of calcium alkylsalicylate and magnesium alkylsalicylate is 1 to
10% by weight of the lubricating oil composition; and (2) the lubricating base oil, (A) a sulfurized oxymolybdenum dithiocarbamate having 8 to 18 carbon atoms in the hydrocarbon group, (B) ) Zinc dialkyldithiophosphate having a primary alkyl group having 1 to 18 carbon atoms, or zinc dialkyldithiophosphate having a primary alkyl group having 1 to 18 carbon atoms and secondary alkyl having 1 to 18 carbon atoms Lubricating oil composition containing a mixture of zinc dialkyldithiophosphates having a group, a mixture of (C) calcium alkylsalicylate 100 to 50% by weight and magnesium alkylsalicylate 0 to 50% by weight, and (D) boron-containing succinimide And the amount of molybdenum derived from sulfurized oxymolybdenum dithiocarbamate is 200 to 1 based on the total weight of the composition.
000 ppm (weight ratio), the amount of phosphorus derived from zinc dialkyldithiophosphate is 0.04 to 0.15% by weight, and the total amount of calcium alkylsalicylate and magnesium alkylsalicylate is 1 to 10% by weight. , The amount of boron derived from the boron-containing succinimide is 0.0
The present invention provides a lubricating oil composition, which is characterized by having an amount of 05 to 0.06% by weight.

【０００５】以下、本発明を詳細に説明する。本発明の
潤滑油組成物において用いられる潤滑油基油については
特に制限はなく、従来潤滑油の基油として慣用されてい
るもの、例えば、鉱油や合成油を使用することができ
る。鉱油としては、潤滑油原料をフェノール、フルフラ
ールなどの芳香族抽出溶剤を用いた溶剤精製して得られ
るラフィネート、シリカ−アルミナを担体とするコバル
ト、モリブデンなどの水素化処理触媒を用いた水素化処
理により得られる水素化処理油、又はワックスの異性化
により得られる潤滑油留分などの鉱油、例えば、６０ニ
ュートラル油、１００ニュートラル油、１５０ニュート
ラル油、３００ニュートラル油、５００ニュートラル
油、ブライトストックなどが挙げられる。一方、合成油
としては、例えばポリα−オレフィンオリゴマー、ポリ
ブテン、アルキルベンゼン、ポリオールエステル、ポリ
グリコールエステル、二塩基酸エステル、りん酸エステ
ル、シリコーン油などが挙げられる。これらの基油はそ
れぞれ単独で用いてもよいし、２種以上を組み合わせて
用いてもよく、また鉱油と合成油とを混合使用してもよ
い。本発明の潤滑油組成物において用いられる基油とし
ては、１００℃における粘度が３〜２０ｃＳｔの範囲に
あるものが好適であり、なかでも、芳香族成分３重量％
以下、硫黄分５０ppm以下及び窒素分５０ppm以下の水素
化分解油及びワックス異性化油が特に好適である。The present invention will be described in detail below. The lubricating base oil used in the lubricating oil composition of the present invention is not particularly limited, and those conventionally used as a base oil for lubricating oil, such as mineral oil and synthetic oil, can be used. As mineral oil, raffinate obtained by solvent refining a lubricating oil raw material using an aromatic extraction solvent such as phenol or furfural, hydrotreating using a hydrotreating catalyst such as cobalt-molybdenum using silica-alumina as a carrier Or a mineral oil such as a lubricating oil fraction obtained by isomerizing a wax, such as 60 neutral oil, 100 neutral oil, 150 neutral oil, 300 neutral oil, 500 neutral oil, bright stock, etc. Can be mentioned. On the other hand, examples of the synthetic oil include poly α-olefin oligomer, polybutene, alkylbenzene, polyol ester, polyglycol ester, dibasic acid ester, phosphoric acid ester and silicone oil. These base oils may be used alone, or may be used in combination of two or more kinds, and mineral oil and synthetic oil may be mixed and used. As the base oil used in the lubricating oil composition of the present invention, those having a viscosity at 100 ° C. in the range of 3 to 20 cSt are suitable, and among them, the aromatic component is 3% by weight.
Hereinafter, hydrocracked oil and wax isomerized oil having a sulfur content of 50 ppm or less and a nitrogen content of 50 ppm or less are particularly preferable.

【０００６】本発明の潤滑油組成物に配合する硫化オキ
シモリブデンジチオカルバメートとしては、一般式
［１］The sulfurized oxymolybdenum dithiocarbamate compounded in the lubricating oil composition of the present invention has the general formula [1]

【化１】 （ただし、式中、Ｒ1及びＲ2はそれぞれ炭素数８〜１８
の炭化水素基であり、それらはたがいに同一でも異なっ
ていてもよく、ｍ及びｎはそれぞれそれらの和が４とな
るような正の整数である。）で表される化合物を用いる
ことができる。一般式［１］におけるＲ1及びＲ2により
表される炭素数８〜１８の炭化水素基としては、例え
ば、炭素数８〜１８のアルキル基、炭素数８〜１８のア
ルケニル基、炭素数８〜１８のシクロアルキル基、炭素
数８〜１８のアリール基、アルキルアリール基、アリー
ルアルキル基などの炭化水素基を挙げることができる。
前記アルキル基やアルケニル基は直鎖状であってもよい
し、分枝鎖状であってもよい。本発明の潤滑油組成物に
おいては、Ｒ1及びＲ2により表される炭化水素基の炭素
数が８であることが特に好ましい。Ｒ1及びＲ2で表され
る炭化水素基の具体例としては、オクチル、ノニル、デ
シル、ウンデシル、ドデシル、トリデシル、オクテニ
ル、ノネニル、デセニル、ウンデセニル、ドデセニル、
トリデセニル、テトラデセニル、ヘキサデセニル、オク
タデセニル、ジメチルシクロヘキシル、エチルシクロヘ
キシル、メチルシクロヘキシルメチル、シクロヘキシル
エチル、プロピルシクロヘキシル、ブチルシクロヘキシ
ル、ヘプチルシクロヘキシル、ジメチルフェニル、メチ
ルベンジル、フェネチル、ナフチル、ジメチルナフチル
基などを挙げることができる。本発明の潤滑油組成物に
おいては、硫化オキシモリブデンジチオカルバメートは
１種用いてもよいし、２種以上を組み合わせて用いても
もよい。また硫化オキシモリブデンジチオカルバメート
は、組成物全重量に基づき硫化オキシモリブデンジチオ
カルバメートに由来するモリブテンの量が２００〜１０
００ppm（重量比）となるよう、好ましくは３００〜８
００ppm（重量比）となるよう配合する。硫化オキシモ
リブデンジチオカルバメートの配合量が、組成物全重量
に基づき硫化オキシモリブデンジチオカルバメートに由
来するモリブテンの量が２００ppm（重量比）未満とな
る量であると、摩擦特性の向上効果が十分に発揮されな
いし、硫化オキシモリブデンジチオカルバメートの配合
量が、組成物全重量に基づき硫化オキシモリブデンジチ
オカルバメートに由来するモリブテンの量が１０００pp
m（重量比）を超える量であると、その量の割には効果
の向上が認められず、またスラッジなどの原因となりや
すい。[Chemical 1] (However, in the formula, R 1 and R 2 each have 8 to 18 carbon atoms.
, Which may be the same or different, and m and n are positive integers such that their sum is 4. The compound represented by these can be used. Examples of the hydrocarbon group having 8 to 18 carbon atoms represented by R 1 and R 2 in the general formula [1] include, for example, an alkyl group having 8 to 18 carbon atoms, an alkenyl group having 8 to 18 carbon atoms, and 8 carbon atoms. Hydrocarbon groups such as a cycloalkyl group having 18 to 18 carbon atoms, an aryl group having 8 to 18 carbon atoms, an alkylaryl group, and an arylalkyl group can be exemplified.
The alkyl group or alkenyl group may be linear or branched. In the lubricating oil composition of the present invention, it is particularly preferable that the hydrocarbon group represented by R 1 and R 2 has 8 carbon atoms. Specific examples of the hydrocarbon group represented by R 1 and R 2 include octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl,
Examples thereof include tridecenyl, tetradecenyl, hexadecenyl, octadecenyl, dimethylcyclohexyl, ethylcyclohexyl, methylcyclohexylmethyl, cyclohexylethyl, propylcyclohexyl, butylcyclohexyl, heptylcyclohexyl, dimethylphenyl, methylbenzyl, phenethyl, naphthyl and dimethylnaphthyl groups. In the lubricating oil composition of the present invention, one type of sulfurized oxymolybdenum dithiocarbamate may be used, or two or more types may be used in combination. The sulfurized oxymolybdenum dithiocarbamate has an amount of molybdenum derived from the sulfurized oxymolybdenum dithiocarbamate of 200 to 10 based on the total weight of the composition.
It is preferably 300 to 8 so as to be 00 ppm (weight ratio)
Blend so that it will be 00 ppm (weight ratio). When the amount of molybdenum derived from sulfurized oxymolybdenum dithiocarbamate is less than 200 ppm (weight ratio) based on the total weight of the composition, the effect of improving frictional properties is sufficiently exhibited. The amount of molybdenum derived from sulfurized oxymolybdenum dithiocarbamate is 1000 pp based on the total weight of the composition.
If the amount is more than m (weight ratio), the effect is not improved for the amount, and sludge is likely to be the cause.

【０００７】本発明の潤滑油組成物に配合するジアルキ
ルジチオりん酸亜鉛としては、一般式［２］The zinc dialkyldithiophosphate compounded in the lubricating oil composition of the present invention has the general formula [2]

【化２】 （ただし、式中、Ｒ3及びＲ4は炭素数３〜１８の第一級
又は第二級アルキル基であり、それらはたがいに同一で
も異なっていてもよい。）で表される化合物を用いるこ
とができる。本発明の潤滑油組成物においては、一般式
［２］におけるアルキル基がすべて第一級であるジアル
キルジチオりん酸亜鉛を用いることができ、また、アル
キル基がすべて第一級であるジアルキルジチオりん酸亜
鉛とアルキル基がすべて第二級であるジアルキルジチオ
りん酸亜鉛の混合物を用いることができ、あるいは、ア
ルキル基の１個が第一級であり、他の１個が第二級であ
るジアルキルジチオりん酸亜鉛を用いることができ、さ
らに、これらのジアルキルジチオりん酸亜鉛の混合物を
用いることができる。一般式［２］におけるＲ3及びＲ4
で表される第一級及び第二級アルキル基は、プロピル、
ブチル、ペンチル、ヘキシル、ヘプチル、オクチル、ノ
ニル、デシル、ウンデシル及びドデシル基であるが、本
発明の潤滑油組成物には、炭素数３〜１２の第一級又は
第二級アルキル基を有するジアルキルジチオりん酸亜鉛
を用いることが好ましい。本発明の潤滑油組成物におい
て、ジアルキルジチオりん酸亜鉛は、組成物全重量に基
づきジアルキルジチオりん酸亜鉛に由来するりんの量が
０.０４〜０.１５重量％となるよう、好ましくは０.０
６〜０.１２重量％となるよう配合する。ジアルキルジ
チオりん酸亜鉛の配合量が、組成物全重量に基づきジア
ルキルジチオりん酸亜鉛に由来するりんの量が０.０４
重量％未満となる量であると、耐摩耗性が不十分となる
上、高油温かつ低速回転の運転条件下で満足しうる低摩
擦係数が得られないし、ジアルキルジチオりん酸亜鉛の
配合量が、組成物全重量に基づきジアルキルジチオりん
酸亜鉛に由来するりんの量が０.１５重量％を超える
と、その量の割には効果の向上が認められない。本発明
の潤滑油組成物において用いられるアルキルサリチル酸
カルシウム及びアルキルサリチル酸マグネシウムとして
は、一般式［３］[Chemical 2] (However, in the formula, R 3 and R 4 are primary or secondary alkyl groups having 3 to 18 carbon atoms, and they may be the same or different from each other.) be able to. In the lubricating oil composition of the present invention, zinc dialkyldithiophosphate having all primary alkyl groups in the general formula [2] can be used, and dialkyldithiophosphorus having all primary alkyl groups can be used. Mixtures of zinc acid and zinc dialkyldithiophosphates in which the alkyl groups are all secondary can be used, or dialkyls in which one of the alkyl groups is primary and the other is secondary. Zinc dithiophosphate can be used, and further mixtures of these zinc dialkyldithiophosphates can be used. R 3 and R 4 in the general formula [2]
The primary and secondary alkyl groups represented by are propyl,
A butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl and dodecyl group, but the lubricating oil composition of the present invention has a dialkyl having a primary or secondary alkyl group having 3 to 12 carbon atoms. Preference is given to using zinc dithiophosphate. In the lubricating oil composition of the present invention, the zinc dialkyldithiophosphate is preferably added so that the amount of phosphorus derived from zinc dialkyldithiophosphate is 0.04 to 0.15% by weight based on the total weight of the composition, preferably 0. .0
It is mixed so as to be 6 to 0.12% by weight. The amount of zinc dialkyldithiophosphate added is 0.04, based on the total weight of the composition, and the amount of phosphorus derived from zinc dialkyldithiophosphate is 0.04.
If the amount is less than wt%, the abrasion resistance will be insufficient, and a satisfactory low friction coefficient will not be obtained under the operating conditions of high oil temperature and low speed rotation, and the amount of zinc dialkyldithiophosphate compounded. However, if the amount of phosphorus derived from zinc dialkyldithiophosphate exceeds 0.15% by weight based on the total weight of the composition, no improvement in the effect is recognized for that amount. The calcium alkylsalicylate and magnesium alkylsalicylate used in the lubricating oil composition of the present invention have the general formula [3]

【化３】 （ただし、式中、Ｍはカルシウム又はマグネシウムであ
り、Ｒ5及びＲ6は炭素数８〜３０のアルキル基であり、
それらはたがいに同一でも異なっていてもよい。）で表
される化合物を用いることができる。一般式［３］にお
けるＲ5及びＲ6で表される炭素数８〜３０のアルキル基
は、直鎖状、分枝鎖状又は環状であってもよく、例え
ば、オクチル、ノニル、デシル、ドデシル、ペンタデシ
ル、オクタデシル、エイコシル、ドコシル、トリコシ
ル、ヘキサコシル、トリアコンチル、ジメチルシクロヘ
キシル、エチルシクロヘキシル、メチルシクロヘキシル
メチル、シクロヘキシルエチル基などを挙げることがで
きる。本発明の潤滑油組成物において、アルキルサリチ
ル酸塩は、アルキルサリチル酸カルシウム１００〜５０
重量％及びアルキルサリチル酸マグネシウム０〜５０重
量％の混合物として配合され、その配合量は、組成物全
重量に基づきアルキルサリチル酸カルシウム及びアルキ
ルサリチル酸マグネシウムの合計量が０.５〜１０重量
％、好ましくは１〜６重量％である。アルキルサリチル
酸カルシウム及びアルキルサリチル酸マグネシウムの合
計量が、組成物全重量に基づき０.５重量％未満である
と、清浄効果がが不十分であり、アルキルサリチル酸カ
ルシウム及びアルキルサリチル酸マグネシウムの合計量
が、組成物全重量に基づき１０重量％を超えると、その
量の割には効果の向上が認められず、むしろ灰分が増加
するので好ましくない。[Chemical 3] (In the formula, M is calcium or magnesium, R 5 and R 6 are alkyl groups having 8 to 30 carbon atoms,
They may be the same or different. The compound represented by these can be used. The alkyl group having 8 to 30 carbon atoms represented by R 5 and R 6 in the general formula [3] may be linear, branched or cyclic, and includes, for example, octyl, nonyl, decyl and dodecyl. , Pentadecyl, octadecyl, eicosyl, docosyl, tricosyl, hexacosyl, triacontyl, dimethylcyclohexyl, ethylcyclohexyl, methylcyclohexylmethyl, and cyclohexylethyl groups. In the lubricating oil composition of the present invention, the alkyl salicylate is calcium alkyl salicylate 100 to 50.
% And magnesium alkylsalicylate 0 to 50% by weight as a mixture, and the blending amount thereof is such that the total amount of calcium alkylsalicylate and magnesium alkylsalicylate is 0.5 to 10% by weight, preferably 1 based on the total weight of the composition. ~ 6% by weight. If the total amount of calcium alkylsalicylate and magnesium alkylsalicylate is less than 0.5% by weight based on the total weight of the composition, the cleaning effect is insufficient, and the total amount of calcium alkylsalicylate and magnesium alkylsalicylate is If it exceeds 10% by weight based on the total weight of the product, the effect is not improved for the amount, and the ash content is rather increased, which is not preferable.

【０００８】本発明の潤滑油組成物においては、組成物
の全塩基価を３〜１０とすることが好ましく、全塩基価
を４〜７とすることがより好ましい。塩基価はＪＩＳ
Ｋ ２５０１にしたがって測定することができる。全塩
基価の調整は、適当な塩基価をもつアルキルサリチル酸
カルシウム及びアルキルサリチル酸マグネシウムを選定
することにより好適に行うことができる。本発明の潤滑
油組成物においては、所望に応じてホウ素含有コハク酸
イミドを配合することができる。本発明の潤滑油組成物
において用いられるホウ素含有コハク酸イミド中の、ホ
ウ素／窒素の原子数の比は０.０５〜１.５、好ましくは
０.１〜０.８である。ホウ素／窒素の原子数の比が０.
０５未満であると、十分な摩擦特性の向上が得られない
し、ホウ素／窒素の原子数の比が１.５を超えると、摩
擦特性が悪くなる。本発明の潤滑油組成物において、ホ
ウ素含有コハク酸イミドは、組成物全重量に基づき、ホ
ウ素含有コハク酸イミドに由来するホウ素の量が０.０
０５〜０.０６重量％となるよう、好ましくは０.０１〜
０.０４重量％となるよう配合する。ホウ素含有コハク
酸イミドの配合量が、組成物全重量に基づきホウ素含有
コハク酸イミドに由来するホウ素の量が０.００５重量
％未満となる量であると、十分な摩擦特性の向上が得ら
れないし、ホウ素含有コハク酸イミドの配合量が、組成
物全重量に基づきホウ素含有コハク酸イミドに由来する
ホウ素の量が０.０６重量％を超える量であると、その
量の割には効果の向上が認められない。本発明の潤滑油
組成物には、本発明の目的が損なわれない範囲で、従来
潤滑油に慣用されている各種添加剤、例えば金属系清浄
剤、他の摩擦調整剤、酸化防止剤、粘度指数向上剤、流
動点降下剤、消泡剤、他の耐摩耗剤、防錆剤、無灰分散
剤、腐食防止剤などを適宜配合することができる。金属
系清浄剤としては、例えば、カルシウムスルホネート、
マグネシウムスルホネート、バリウムスルホネート、カ
ルシウムフェネート、バリウムフェネート、カルシウム
サリシレート、マグネシウムサリシレートなどが挙げら
れ、これらは通常０.１〜５重量％の割合で使用され
る。摩擦調整剤としては、例えば、多価アルコール部分
エステル、アミン、アミド、硫化エステルなどが挙げら
れる。酸化防止剤としては、例えば、アルキル化ジフェ
ニルアミン、フェニル−α−ナフチルアミン、アルキル
化−α−ナフチルアミンなどのアミン系酸化防止剤、
２,６−ジ−ｔ−ブチル−４−メチルフェノール、４,
４'−メチレンビス（２,６−ジ−ｔ−ブチルフェノー
ル）などのフェノール系酸化防止剤などが挙げられ、こ
れは、通常０.０５〜２重量％の割合で使用される。粘
度指数向上剤としては、例えば、ポリメタクリレート
系、ポリイソブチレン系、エチレン−プロピレン共重合
体系、スチレン−ブタジエン水添共重合体系などが挙げ
られ、これらは、通常０.５〜３５重量％の割合で使用
される。流動点降下剤としては、例えば、ポリアルキル
メタクリレート、塩素化パラフィン−ナフタレン縮合
物、アルキル化ポリスチレンなどが挙げられる。消泡剤
としては、例えば、ジメチルポリシロキサンやポリアク
リル酸などが挙げられる。耐摩耗剤としては、例えば、
チオりん酸金属塩、チオカルバミン酸金属塩、硫黄化合
物、りん酸エステル、亜りん酸エステルなどを挙げるこ
とができ、これらは通常０.０５〜５.０重量％の割合で
使用される。防錆剤としては、例えば、脂肪酸、アルケ
ニルコハク酸部分エステル、脂肪酸セッケン、アルキル
スルホン酸塩、脂肪酸多価アルコールエステル、脂肪酸
アミン、酸化パラフィン、アルキルポリオキシエチレン
エーテルなどが挙げられる。無灰分散剤としては、例え
ば、こはく酸イミド系、こはく酸アミド系、ベンジルア
ミン系、エステル系のものなどが挙げられ、これらは、
通常０.５〜７重量％の割合で使用される。腐食防止剤
としては、例えば、ベンゾトリアゾールやベンゾイミダ
ゾールなどが挙げられる。In the lubricating oil composition of the present invention, the total base number of the composition is preferably 3-10, more preferably 4-7. Base number is JIS
It can be measured according to K 2501. The adjustment of the total base number can be suitably performed by selecting calcium alkylsalicylate and magnesium alkylsalicylate having appropriate base numbers. In the lubricating oil composition of the present invention, a boron-containing succinimide can be blended if desired. The boron / nitrogen atom ratio in the boron-containing succinimide used in the lubricating oil composition of the present invention is 0.05 to 1.5, preferably 0.1 to 0.8. The ratio of the number of boron / nitrogen atoms is 0.
When it is less than 05, sufficient improvement in frictional properties cannot be obtained, and when the ratio of the number of atoms of boron / nitrogen exceeds 1.5, the frictional properties deteriorate. In the lubricating oil composition of the present invention, the boron-containing succinimide has an amount of boron derived from the boron-containing succinimide of 0.0 based on the total weight of the composition.
0 to 0.06% by weight, preferably 0.01 to
It is blended so as to be 0.04 wt%. When the amount of the boron-containing succinimide compounded is such that the amount of boron derived from the boron-containing succinimide is less than 0.005% by weight based on the total weight of the composition, sufficient improvement in friction characteristics can be obtained. Or, when the amount of the boron-containing succinimide compounded is such that the amount of boron derived from the boron-containing succinimide exceeds 0.06% by weight based on the total weight of the composition, it is effective for the amount. No improvement is recognized. The lubricating oil composition of the present invention contains various additives conventionally used for lubricating oils, such as metal-based detergents, other friction modifiers, antioxidants, and viscosity, as long as the object of the present invention is not impaired. An index improver, a pour point depressant, an antifoaming agent, another antiwear agent, a rust preventive, an ashless dispersant, a corrosion inhibitor and the like can be appropriately added. Examples of the metal-based detergent include calcium sulfonate,
Examples thereof include magnesium sulfonate, barium sulfonate, calcium phenate, barium phenate, calcium salicylate, magnesium salicylate and the like, and these are usually used in a proportion of 0.1 to 5% by weight. Examples of the friction modifier include polyhydric alcohol partial ester, amine, amide, sulfurized ester and the like. Examples of the antioxidant include amine-based antioxidants such as alkylated diphenylamine, phenyl-α-naphthylamine, and alkylated-α-naphthylamine,
2,6-di-t-butyl-4-methylphenol, 4,
Examples include phenolic antioxidants such as 4'-methylenebis (2,6-di-t-butylphenol), which are usually used in a proportion of 0.05 to 2% by weight. Examples of the viscosity index improver include polymethacrylate-based, polyisobutylene-based, ethylene-propylene copolymer system, styrene-butadiene hydrogenated copolymer system and the like, and these are usually in a proportion of 0.5 to 35% by weight. Used in. Examples of the pour point depressant include polyalkylmethacrylate, chlorinated paraffin-naphthalene condensate, alkylated polystyrene and the like. Examples of the defoaming agent include dimethyl polysiloxane and polyacrylic acid. As the antiwear agent, for example,
Examples thereof include thiophosphoric acid metal salts, thiocarbamic acid metal salts, sulfur compounds, phosphoric acid esters and phosphorous acid esters, and these are usually used in a proportion of 0.05 to 5.0% by weight. Examples of the rust preventive include fatty acid, alkenyl succinic acid partial ester, fatty acid soap, alkyl sulfonate, fatty acid polyhydric alcohol ester, fatty acid amine, oxidized paraffin, alkyl polyoxyethylene ether and the like. Examples of the ashless dispersant include succinimide-based, succinamide-based, benzylamine-based, and ester-based dispersants.
It is usually used in a proportion of 0.5 to 7% by weight. Examples of the corrosion inhibitor include benzotriazole and benzimidazole.

【０００９】[0009]

【実施例】以下に実施例により本発明をさらに詳細に説
明するが、本発明はこれらの例によってなんら限定され
るものではない。なお、潤滑油組成物の摩擦係数は、往
復動すべり摩擦試験機［ＳＲＶ摩擦試験機］を用い、振
動数５０Hz、振幅３mm、荷重２５Ｎ、温度８０℃、試験
時間２５分において測定した。 実施例１〜９及び比較例１〜２ 硫化オキシモリブデンジチオカルバメート、ジアルキル
ジチオりん酸亜鉛及びアルキルサリチル酸塩を配合した
潤滑油組成物である。基油（１００ニュートラル油、１
００℃における粘度４.４mm／ｓ2）に対し、第１表に示
す種類と量の各配合成分を含有する潤滑油組成物を調製
し、調整直後の摩擦係数、及び、１５０℃で７２時間保
持して酸化したのちの摩擦係数を測定した。結果を第１
表に示す。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. The friction coefficient of the lubricating oil composition was measured using a reciprocating sliding friction tester [SRV friction tester] at a frequency of 50 Hz, an amplitude of 3 mm, a load of 25 N, a temperature of 80 ° C., and a test time of 25 minutes. Examples 1 to 9 and Comparative Examples 1 and 2 are lubricating oil compositions containing sulfurized oxymolybdenum dithiocarbamate, zinc dialkyldithiophosphate and alkylsalicylate. Base oil (100 neutral oil, 1
For a viscosity of 4.4 mm / s 2 at 00 ° C, a lubricating oil composition containing each type and amount of each compounding component shown in Table 1 was prepared, and the friction coefficient immediately after adjustment and the temperature at 150 ° C for 72 hours were adjusted. The friction coefficient after holding and oxidizing was measured. First result
Shown in the table.

【００１０】[0010]

【表１】 [Table 1]

【００１１】実施例１〜９の本発明の潤滑油組成物を用
いた場合は、いずれも摩擦係数が低く良好な摩擦特性を
示し、かつ、１５０℃で７２時間加熱して酸化したのち
も、摩擦係数はほとんど変化なく、これらの潤滑油組成
物は良好な耐熱性を有していることが分かる。これに対
して、ジアルキルジチオりん酸亜鉛として、第二級アル
キル基を有するジアルキルジチオりん酸亜鉛のみを配合
した比較例１の潤滑油組成物を用いた場合は、調製直後
の摩擦係数がすでに高く、かつ１５０℃で７２時間加熱
して酸化したのちには摩擦係数は一層高くなり、摩擦特
性及び耐熱性ともに劣っていることが分かる。また、ア
ルキルサリチル酸塩のかわりにスルホン酸カルシウムを
配合した比較例２の潤滑油組成物を用いた場合は、１５
０℃で７２時間加熱酸化すると摩擦係数が上昇し、この
潤滑油組成物は耐熱性が劣ることが分かる。 実施例１０〜１８及び比較例３〜４ 硫化オキシモリブデンジチオカルバメート、ジアルキル
ジチオりん酸亜鉛、アルキルサリチル酸塩及びホウ素含
有コハク酸イミドを配合した潤滑油組成物である。基油
（１００ニュートラル油、１００℃における粘度４.４m
m／ｓ2）に対し、第２表に示す種類と量の各配合成分を
含有する潤滑油組成物を調製し、調整直後の摩擦係数、
及び、１５０℃で７２時間保持して酸化したのちの摩擦
係数を測定した。結果を第２表に示す。When the lubricating oil compositions of the present invention of Examples 1 to 9 were used, they all had a low friction coefficient and good friction characteristics, and after heating at 150 ° C. for 72 hours for oxidation, It can be seen that the friction coefficient hardly changes and these lubricating oil compositions have good heat resistance. On the other hand, when the lubricating oil composition of Comparative Example 1 in which only zinc dialkyldithiophosphate having a secondary alkyl group was blended as zinc dialkyldithiophosphate, the friction coefficient immediately after preparation was already high. Further, it was found that after being heated at 150 ° C. for 72 hours to be oxidized, the friction coefficient was further increased, and both the friction characteristics and the heat resistance were inferior. Further, when the lubricating oil composition of Comparative Example 2 containing calcium sulfonate instead of the alkyl salicylate was used,
It can be seen that when heat-oxidized at 0 ° C. for 72 hours, the friction coefficient increases, and this lubricating oil composition has poor heat resistance. Examples 10 to 18 and Comparative Examples 3 to 4 Lubricating oil compositions containing sulfurized oxymolybdenum dithiocarbamate, zinc dialkyldithiophosphate, alkylsalicylate and boron-containing succinimide. Base oil (100 neutral oil, viscosity at 100 ℃ 4.4m
m / s 2 ), a lubricating oil composition containing the respective types and amounts of compounding components shown in Table 2 was prepared, and the friction coefficient immediately after adjustment was
Also, the friction coefficient was measured after holding at 150 ° C. for 72 hours for oxidation. The results are shown in Table 2.

【００１２】[0012]

【表２】 [Table 2]

【００１３】実施例１０〜１８のホウ素含有コハク酸イ
ミドを配合した本発明の潤滑油組成物は、ホウ素含有コ
ハク酸イミドを配合しない実施例１〜９の潤滑油組成物
に比べ、さらに摩擦係数が低くなり、優れた摩擦特性を
示し、かつ、１５０℃で７２時間加熱して酸化したのち
も、摩擦係数はほとんど変化なく、これらの潤滑油組成
物は良好な耐熱性を有していることが分かる。これに対
して、ジアルキルジチオりん酸亜鉛として、第二級アル
キル基を有するジアルキルジチオりん酸亜鉛のみを配合
した比較例３の潤滑油組成物を用いた場合は、ホウ素含
有コハク酸イミドが配合されていても、調製直後の摩擦
係数がすでに高く、かつ１５０℃で７２時間加熱して酸
化したのちには摩擦係数は一層高くなり、摩擦特性及び
耐熱性ともに劣っていることが分かる。また、アルキル
サリチル酸塩のかわりにスルホン酸カルシウムを配合し
た比較例４の潤滑油組成物を用いた場合は、ホウ素含有
コハク酸イミドが配合されていても、１５０℃で７２時
間加熱酸化すると摩擦係数が上昇し、この潤滑油組成物
は耐熱性が劣ることが分かる。The lubricating oil compositions of the present invention containing the boron-containing succinimides of Examples 10 to 18 have a higher friction coefficient than the lubricating oil compositions of Examples 1 to 9 containing no boron-containing succinimide. The friction coefficient of the lubricating oil composition does not change even after being oxidized by heating at 150 ° C. for 72 hours, and these lubricating oil compositions have good heat resistance. I understand. On the other hand, when the lubricating oil composition of Comparative Example 3 in which only zinc dialkyldithiophosphate having a secondary alkyl group was blended as zinc dialkyldithiophosphate, boron-containing succinimide was blended. However, it can be seen that the friction coefficient immediately after preparation is already high, and the friction coefficient becomes higher after heating at 150 ° C. for 72 hours for oxidation, resulting in poor friction characteristics and heat resistance. Further, when the lubricating oil composition of Comparative Example 4 containing calcium sulfonate instead of the alkyl salicylate was used, even if the boron-containing succinimide was added, it was found that the friction coefficient when heated and oxidized at 150 ° C. for 72 hours. And the heat resistance of this lubricating oil composition is inferior.

【００１４】[0014]

【発明の効果】本発明の潤滑油組成物は、基油に対し
て、特定構造の硫化オキシモリブデンジチオカルバメー
ト、ジアルキルジチオりん酸亜鉛、アルキルサリチル酸
塩、及び所望によりホウ素含有コハク酸イミドを配合す
ることによって、優れた低摩耗性を有するとともに、長
期にわたり低摩擦性の持続性を保持し、摩擦特性及び耐
熱性に優れており、内燃機関、自動変速機、緩衝器、パ
ワーステアリングなどの潤滑油、特に、内燃機関用潤滑
油として好適に用いることができる。In the lubricating oil composition of the present invention, a base oil is blended with a sulfurized oxymolybdenum dithiocarbamate having a specific structure, a zinc dialkyldithiophosphate, an alkylsalicylate, and optionally a boron-containing succinimide. By virtue of this, it has excellent low wear properties, retains low friction properties for a long period of time, and has excellent friction characteristics and heat resistance, and it is a lubricating oil for internal combustion engines, automatic transmissions, shock absorbers, power steering systems, etc. In particular, it can be preferably used as a lubricating oil for an internal combustion engine.

フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ１０Ｍ 129:54） Ｃ１０Ｎ 10:04 10:12 20:00 Ｚ 30:06 40:00 Ｚ 40:02 40:04 40:25 Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display area C10M 129: 54) C10N 10:04 10:12 20:00 Z 30:06 40:00 Z 40:02 40: 04 40:25

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】潤滑油基油に対して、（Ａ）炭化水素基の
炭素数が８〜１８の硫化オキシモリブデンジチオカルバ
メート、（Ｂ）炭素数１〜１８の第一級アルキル基を有
するジアルキルジチオりん酸亜鉛、又は炭素数１〜１８
の第一級アルキル基を有するジアルキルジチオりん酸亜
鉛及び炭素数１〜１８の第二級アルキル基を有するジア
ルキルジチオりん酸亜鉛の混合物、及び（Ｃ）アルキル
サリチル酸カルシウム１００〜５０重量％及びアルキル
サリチル酸マグネシウム０〜５０重量％の混合物を配合
した潤滑油組成物であって、組成物全重量に基づき、硫
化オキシモリブデンジチオカルバメートに由来するモリ
ブデンの量が２００〜１０００ppm（重量比）であり、
ジアルキルジチオりん酸亜鉛に由来するりんの量が０.
０４〜０.１５重量％であり、アルキルサリチル酸カル
シウム及びアルキルサリチル酸マグネシウムの合計量が
１〜１０重量％であることを特徴とする潤滑油組成物。1. A lubricating base oil comprising: (A) a sulfurized oxymolybdenum dithiocarbamate having a hydrocarbon group having 8 to 18 carbon atoms, and (B) a dialkyl having a primary alkyl group having 1 to 18 carbon atoms. Zinc dithiophosphate, or C1-18
A mixture of zinc dialkyldithiophosphate having a primary alkyl group and zinc dialkyldithiophosphate having a secondary alkyl group having 1 to 18 carbon atoms, and (C) calcium alkylsalicylate 100 to 50% by weight and alkylsalicylic acid A lubricating oil composition containing a mixture of 0 to 50% by weight of magnesium, wherein the amount of molybdenum derived from sulfurized oxymolybdenum dithiocarbamate is 200 to 1000 ppm (weight ratio) based on the total weight of the composition,
The amount of phosphorus derived from zinc dialkyldithiophosphate is 0.
A lubricating oil composition, characterized in that it is from 04 to 0.15% by weight, and the total amount of calcium alkylsalicylate and magnesium alkylsalicylate is from 1 to 10% by weight. 【請求項２】潤滑油基油に対して、（Ａ）炭化水素基の
炭素数が８〜１８の硫化オキシモリブデンジチオカルバ
メート、（Ｂ）炭素数１〜１８の第一級アルキル基を有
するジアルキルジチオりん酸亜鉛、又は炭素数１〜１８
の第一級アルキル基を有するジアルキルジチオりん酸亜
鉛及び炭素数１〜１８の第二級アルキル基を有するジア
ルキルジチオりん酸亜鉛の混合物、（Ｃ）アルキルサリ
チル酸カルシウム１００〜５０重量％及びアルキルサリ
チル酸マグネシウム０〜５０重量％の混合物、及び
（Ｄ）ホウ素含有コハク酸イミドを配合した潤滑油組成
物であって、組成物全重量に基づき、硫化オキシモリブ
デンジチオカルバメートに由来するモリブデンの量が２
００〜１０００ppm（重量比）であり、ジアルキルジチ
オりん酸亜鉛に由来するりんの量が０.０４〜０.１５重
量％であり、アルキルサリチル酸カルシウム及びアルキ
ルサリチル酸マグネシウムの合計量が１〜１０重量％で
あり、ホウ素含有コハク酸イミドに由来するホウ素の量
が０.００５〜０.０６重量％であることを特徴とする潤
滑油組成物。2. A lubricating base oil comprising (A) a sulfurized oxymolybdenum dithiocarbamate having a hydrocarbon group having 8 to 18 carbon atoms and (B) a dialkyl having a primary alkyl group having 1 to 18 carbon atoms. Zinc dithiophosphate, or C1-18
A mixture of zinc dialkyldithiophosphate having a primary alkyl group and zinc dialkyldithiophosphate having a secondary alkyl group having 1 to 18 carbon atoms, (C) calcium alkylsalicylate 100 to 50% by weight and magnesium alkylsalicylate A lubricating oil composition comprising a mixture of 0 to 50% by weight and (D) a boron-containing succinimide, wherein the amount of molybdenum derived from sulfurized oxymolybdenum dithiocarbamate is 2 based on the total weight of the composition.
0 to 1000 ppm (weight ratio), the amount of phosphorus derived from zinc dialkyldithiophosphate is 0.04 to 0.15% by weight, and the total amount of calcium alkylsalicylate and magnesium alkylsalicylate is 1 to 10% by weight. And the amount of boron derived from the boron-containing succinimide is 0.005 to 0.06% by weight.
JP6131165A 1994-05-20 1994-05-20 Lubricant oil composition Pending JPH07316577A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6131165A JPH07316577A (en) 1994-05-20 1994-05-20 Lubricant oil composition
PCT/US1995/006620 WO1996037582A1 (en) 1994-05-20 1995-05-24 Lubricating oil composition
CA002218811A CA2218811C (en) 1994-05-20 1995-05-24 Lubricating oil composition

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6131165A JPH07316577A (en) 1994-05-20 1994-05-20 Lubricant oil composition
PCT/US1995/006620 WO1996037582A1 (en) 1994-05-20 1995-05-24 Lubricating oil composition
CA002218811A CA2218811C (en) 1994-05-20 1995-05-24 Lubricating oil composition

Publications (1)

Publication Number Publication Date
JPH07316577A true JPH07316577A (en) 1995-12-05

Family

ID=27170497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6131165A Pending JPH07316577A (en) 1994-05-20 1994-05-20 Lubricant oil composition

Country Status (3)

Country Link
JP (1) JPH07316577A (en)
CA (1) CA2218811C (en)
WO (1) WO1996037582A1 (en)

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Also Published As

Publication number Publication date
CA2218811A1 (en) 1996-11-28
WO1996037582A1 (en) 1996-11-28
CA2218811C (en) 2006-02-07

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