JPH0292995A - 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
JPH0292995A
JPH0292995A JP63244475A JP24447588A JPH0292995A JP H0292995 A JPH0292995 A JP H0292995A JP 63244475 A JP63244475 A JP 63244475A JP 24447588 A JP24447588 A JP 24447588A JP H0292995 A JPH0292995 A JP H0292995A
Authority
JP
Japan
Prior art keywords
olefin
lubricating oil
polybutene
weight
alpha
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.)
Granted
Application number
JP63244475A
Other languages
English (en)
Other versions
JP2804271B2 (ja
Inventor
Tomomi Miyaji
智巳 宮地
Masahiko Kido
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 ES198989116669T priority patent/ES2032345T3/es
Priority to DE8989116669T priority patent/DE68901235D1/de
Priority to EP89116669A priority patent/EP0361180B1/en
Priority to AT89116669T priority patent/ATE74952T1/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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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • 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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    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/02—Petroleum fractions
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    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
    • C10M107/04—Polyethene
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    • C10M127/00—Lubricating compositions characterised by the additive being a non- macromolecular hydrocarbon
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

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５７−３
４３１７号公報、特開昭５４−１６０４０１号公報など
）、シかしながら、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捉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−オレフィンの重合体から選ばれる少なくとも
１種の重合体４０〜９０重景％、（Ｂ）１００℃の動粘
度が２〜６００ｃＳｔのポリブテン０〜５０重量％、（
Ｃ）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（Ａ、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、６’
０ＯｃＳｔ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−オレフィンとの共重合体は、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、ｌ−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（Ａ、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３〜３０
０ｃＳｔ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・ノ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、ｌ−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、ｌ−デセン、１−ドデセンである。
なお、Ａ！酸成分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２〜６００ｃ
Ｓｔのものが用いられる。このポリブテンは必ずしも必
須成分ではなく５０ｆｆｉ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重景％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成分の炭化水素系溶剤としては、常圧における沸点が
３００℃以下である石油系又は合成系の炭化水素溶剤が
用いられる。石油系炭化水素溶剤としてはガソリン、灯
油、軽油等が挙げられ、合成系炭化水素溶剤としてはプ
ロピレン、ブテン等の２〜６量体等が挙げられる。これ
らの中では、ブテン低重合体からなる合成系炭化水素溶
剤が耐焼付性を向上させる効果が大きいことから特に好
適に用いられる。
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オスフォネート、
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となるように配向す
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〜Ｂ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”Ｃで２０
ｃＳｔ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。
実施例１〜９、比較例１〜４ 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　ｎ＋ｅｔｈｏｄ　７９１　
Ｂ　・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℃１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！
（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、上記各供試消削にピ
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。

Claims (1)

  1. 【特許請求の範囲】 １、（Ａ）エチレンとα−オレフィンとの共重合体及び
    炭素数６〜１８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）１００℃の動粘度が２〜６００ｃＳｔのポリブテ
    ン０〜５０重量％、 （Ｃ）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)

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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
DE8989116669T DE68901235D1 (de) 1988-09-30 1989-09-08 Zweitaktmaschinen-schmieroelzusammensetzung.
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.
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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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

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JP2804271B2 JP2804271B2 (ja) 1998-09-24

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JP (1) JP2804271B2 (ja)
AT (1) ATE74952T1 (ja)
CA (1) CA1329803C (ja)
DE (1) DE68901235D1 (ja)
ES (1) ES2032345T3 (ja)
PT (1) PT91859B (ja)

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JPWO2014057640A1 (ja) * 2012-10-10 2016-08-25 Ｊｘエネルギー株式会社 トランクピストン型ディーゼル機関用潤滑油組成物

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JPWO2014057640A1 (ja) * 2012-10-10 2016-08-25 Ｊｘエネルギー株式会社 トランクピストン型ディーゼル機関用潤滑油組成物

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ATE74952T1 (de) 1992-05-15
DE68901235D1 (de) 1992-05-21
EP0361180B1 (en) 1992-04-15
US5049291A (en) 1991-09-17
PT91859A (pt) 1990-03-30
JP2804271B2 (ja) 1998-09-24
EP0361180A1 (en) 1990-04-04
ES2032345T3 (es) 1993-02-01
CA1329803C (en) 1994-05-24
PT91859B (pt) 1995-12-29

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