JP2804271B2 - ２サイクルエンジン用潤滑油組成物 - Google Patents

２サイクルエンジン用潤滑油組成物

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Publication number
JP2804271B2
JP2804271B2 JP63244475A JP24447588A JP2804271B2 JP 2804271 B2 JP2804271 B2 JP 2804271B2 JP 63244475 A JP63244475 A JP 63244475A JP 24447588 A JP24447588 A JP 24447588A JP 2804271 B2 JP2804271 B2 JP 2804271B2
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JP
Japan
Prior art keywords
weight
lubricating oil
oil composition
olefin
cst
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.)
Expired - Fee Related
Application number
JP63244475A
Other languages
English (en)
Other versions
JPH0292995A (ja
Inventor
智巳 宮地
正彦 木戸
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
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 Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Priority to JP63244475A priority Critical patent/JP2804271B2/ja
Priority to US07/400,985 priority patent/US5049291A/en
Priority to AT89116669T priority patent/ATE74952T1/de
Priority to EP89116669A priority patent/EP0361180B1/en
Priority to ES198989116669T priority patent/ES2032345T3/es
Priority to DE8989116669T priority patent/DE68901235D1/de
Priority to CA000611078A priority patent/CA1329803C/en
Priority to PT91859A priority patent/PT91859B/pt
Publication of JPH0292995A publication Critical patent/JPH0292995A/ja
Application granted granted Critical
Publication of JP2804271B2 publication Critical patent/JP2804271B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/064—Di- and triaryl amines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • C10M2215/068—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings having amino groups bound to polycyclic aromatic ring systems, i.e. systems with three or more condensed rings
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/086—Imides [having hydrocarbon substituents containing less than thirty carbon atoms]
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/26—Amines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/28—Amides; Imides
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    • 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
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    • 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
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • C—CHEMISTRY; METALLURGY
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    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbased sulfonic acid salts
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    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
    • C10M2223/065—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds containing sulfur
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    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/26—Two-strokes or two-cycle engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Lubricants (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は清浄性、耐焼付性がともに優れた２サイクル
エンジン用潤滑油組成物に関する。
〔従来の技術〕
２サイクルエンジンの潤滑方式には、潤滑油を混合し
た燃料をエンジン内に供給する混合供給方式と、燃料と
は別のタンクに入れた潤滑油をオイルポンプにより供給
する分離供給方式とがあり、いずれの場合も潤滑油はエ
ンジン内に供給され潤滑を行った後燃焼する。したがっ
て、２サイクルエンジン用潤滑油には耐焼付性、清浄性
に優れていること、及び燃焼して排気煙を出さないこと
が要求される。
従来、２サイクルエンジン用潤滑油組成物としては、
鉱油やポリブテンと灯油等の軟質分を配合したものを主
成分とするものが知られている（例えば、特公昭57−34
317号公報、特開昭54−160401号公報など）。しかしな
がら、鉱油を主とするものは清浄性が悪く、ポリブテン
を主とするものは耐焼付性が低いという問題があった。
また、鉱油とポリブテンの混合物を使用したものについ
ては何れの性能も不十分であった。
〔発明が解決しようとする課題〕
本発明は、前記の従来技術の問題点を解消した清浄性
及び耐焼付性が共に優れた、排気煙の少ない２サイクル
エンジン用潤滑油組成物を提供することを目的とする。
〔課題を解決するための手段〕
本発明の２サイクルエンジン用潤滑油組成物は、
（Ａ）エチレンとα−オレフィンとの共重合体及び炭素
数６〜18のα−オレフィン重合体から選ばれる少なくと
も１種の重合体40〜90重量％、（Ｂ）100℃の動粘度が
２〜600cStのポリブテン０〜50重量％、（Ｃ）ブテンの
２〜６量体からなる沸点300℃以下の炭化水素形溶剤５
〜50重量％及び（Ｄ）２サイクルエンジン用添加剤２〜
20重量％からなる混合物を主成分とするものである。
本発明の（Ａ）の重合体のうちのエチレンとα−オレ
フィンとの共重合体（A1成分）としては100℃の動粘度
が好ましくは２〜600cSt、さらに好ましくは３〜300cSt
のものが用いられる。100℃の動粘度が2cSt未満のもの
では耐焼付性が十分でなく、600cStを超えるものでは清
浄性が低下することがある。このエチレンとα−オレフ
ィンの共重合体は、エチレンと炭素数３〜20のα−オレ
フィン、例えばプロピレン、１−ブテン、１−デセンな
どとの共重合体であって、極性基を含まない炭化水素系
合成油が好ましく用いられる。
（Ａ）の重合体のうちの炭素数６〜18のα−オレフィ
ンの重合体（A2成分）としては、100℃の動粘度が好ま
しくは２〜600cSt、さらに好ましくは３〜300cStのもの
が用いられる。このような重合体としては各種のものが
用いられるが、例えばα−オレフィンを原料として、チ
ーグラー触媒を用いる方法、、ラジカル重合による方
法、塩化アルミニウム触媒を用いる方法、フッ化ホウ素
とアルコールからなる触媒を用いる方法など様々な方法
によって重合（特に低重合）あるいは共重合して得られ
る二量体以上のオリゴマーを主成分とするポリ−α−オ
レフィンが好適に使用される。この原料のα−オレフィ
ン（即ちポリ−α−オレフィンの構成単位）としては、
炭素数６〜18、好ましくは８〜12の範囲のα−オレフィ
ンが用いられる。具体的には、１−オクテン、１−ノネ
ン、１−デセン、１−ウンデセン、１−ドデセンなどか
ら選ばれる一種又は二種以上を使用する。特に好ましく
は１−オクテン、１−ノネン、１−デセン、１−ドデセ
ンである。
なお、A2成分の100℃の動粘度が2cSt未満のもので
は、耐焼付性が十分でなく、また600cStを超えるもので
は清浄性が低下することがある。
本発明の混合物において、Ａ成分の含量が40重量％未
満であると耐焼付性が悪くなり、一方90重量％を超える
と他の成分の配合量が著しく少なくなり、好ましくな
い。Ａ成分の好ましい含有量は50〜85重量％である。
Ｂ成分のポリブテンは100℃の動粘度が２〜600cStの
ものが用いられる。のポリブテンは必ずしも必須成分で
はなく50重量％以下用いられ、清浄性をさらに向上させ
る効果を有している。50重量％を超えて使用すると耐焼
付性が低下する。したがって、Ｂ成分の特に好ましい配
合量は５〜40重量％である。
Ｃ成分の炭化水素性溶剤としては、ブテンの２〜６量
体からなる常圧における沸点が300℃以下の炭化水素性
溶剤が用いられ、耐焼付性に優れている。
この炭化水素系溶剤の含有量が５重量％未満であると
清浄性が悪くなり、50重量％を超えると耐焼付性が低下
する。
Ｄ成分の２サイクルエンジン用添加剤としては一般に
２サイクルエンジン用潤滑油組成物に添加されている無
灰分散剤、界面活性剤、金属洗浄剤、流動点降下剤、さ
び止め剤、あわ止め剤等を挙げることができ、本発明の
目的を妨げない範囲内で潤滑油組成物の特性を向上させ
るために添加される。
例えば、アルカリ土類金属スルホネート、アルカリ土
類金属フェネート、アルカリ土類金属フォスフォネー
ト、アルケニルコハク酸イミド、ベンジルアミン、テト
ラエチレンペンタミンと長鎖脂肪酸のアミド等を挙げる
ことができる。
これらＡ〜Ｄの成分を配合する際には、得られる潤滑
油組成物の100℃の動粘度が好ましくは５〜15cSt、さら
に好ましくは６〜12cStとなるように配合することが望
ましい。5cSt未満では耐焼付性が低下することがあり、
15cStを超えると分離給油システムで使用する場合のミ
スト化が困難になることがある。
尚、本発明の潤滑油組成物には前記混合物のＡ〜Ｄ成
分の他に、本発明の目的に反しない限り、他の基油、例
えば、エステル系合成油や鉱油を少量配合することがで
きる。この場合は比較的低粘度（例えば100℃で20cSt以
下）のものを少量配合するにとどめることが好ましい。
〔実施例〕
以下、本発明を実施例に基づいて詳細に説明するが、
本発明はこれに限定されるものではない。
実式例１〜８、比較例１〜５ 表１及び表２に示す配合組成の２サイクルエンジン用
潤滑油を製造し、下記に示す評価方法により潤滑油の特
性を測定した。結果を表１及び表２に示す。
評価方法 1.清浄性 Federal test method791B・3462に準拠したパネルコ
ーキング法で評価した。その試験法は、パネル温度300
℃、油温120℃の条件下で、15秒スプラッシュ−45秒停
止というサイクルを３時間運転し、パネル表面へのカー
ボン付着量（mg）の多寡で評価するという方法である。
2.耐焼付性 ASTM Ｄ 2625、2670のファレックス装置を用いて焼
付に至る時間を測定した。
試験条件は、回転数290rpm、荷重700Lbs、ピン材質が
アルミ合金、ブロック材質が標準試片（鋼）である。ピ
ン表面への被膜形成は、上記各供試油剤にピンを浸漬し
て塗布し、それを60秒間油切りすることにより行った。
〔発明の効果〕 本発明の２サイクルエンジン用潤滑油組成物は清浄性
及び耐焼付性ともに優れるとともにエンジン内できれい
に燃焼して排気煙を出さない極めて優れた特性を有して
いる。
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ１０Ｍ 143:06 127:02） Ｃ１０Ｎ 20:00 20:02 30:04 30:06 40:26 (58)調査した分野(Int.Cl.6，ＤＢ名) C10M 169/04,107/02,127/02 C10M 143/06 C10N 40:26

Claims (1)

    (57)【特許請求の範囲】
  1. 【請求項１】（Ａ）エチレンとα−オレフィンとの共重
    合体及び炭素数６〜16のα−オレフィンの重合体から選
    ばれる少なくとも１種の重合体40〜90重量％、（Ｂ）10
    0℃の動粘度が２〜600cStのポリブテン０〜50重量％、
    （Ｃ）ブテンの２〜６量体からなる沸点300℃以下の炭
    化水素系溶剤５〜50重量％及び（Ｄ）２サイクルエンジ
    ン用添加剤２〜20重量％からなる混合物を主成分とする
    ２サイクルエンジン用潤滑油組成物。
JP63244475A 1988-09-30 1988-09-30 ２サイクルエンジン用潤滑油組成物 Expired - Fee Related JP2804271B2 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP63244475A JP2804271B2 (ja) 1988-09-30 1988-09-30 ２サイクルエンジン用潤滑油組成物
US07/400,985 US5049291A (en) 1988-09-30 1989-08-31 Lubricating oil composition for two-cycle engines
EP89116669A EP0361180B1 (en) 1988-09-30 1989-09-08 Lubricating oil composition for two-cycle engines
ES198989116669T ES2032345T3 (es) 1988-09-30 1989-09-08 Composicion de aceite lubricante para motores de dos tiempos.
AT89116669T ATE74952T1 (de) 1988-09-30 1989-09-08 Zweitaktmaschinen-schmieroelzusammensetzung.
DE8989116669T DE68901235D1 (de) 1988-09-30 1989-09-08 Zweitaktmaschinen-schmieroelzusammensetzung.
CA000611078A CA1329803C (en) 1988-09-30 1989-09-12 Lubricating oil composition for two-cycle engines
PT91859A PT91859B (pt) 1988-09-30 1989-09-29 Processo para a preparacao de oleos lubrificantes contendo um ou mais polimeros para motores a dois tempos

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EP0361180B1 (en) 1992-04-15
US5049291A (en) 1991-09-17
CA1329803C (en) 1994-05-24
PT91859B (pt) 1995-12-29
JPH0292995A (ja) 1990-04-03
ES2032345T3 (es) 1993-02-01
DE68901235D1 (de) 1992-05-21
PT91859A (pt) 1990-03-30
ATE74952T1 (de) 1992-05-15
EP0361180A1 (en) 1990-04-04

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