JPWO2018012265A1 - 潤滑剤組成物及び潤滑油組成物 - Google Patents
潤滑剤組成物及び潤滑油組成物 Download PDFInfo
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Abstract
Description
zは、0〜4の数を表し、中でも本発明の効果が得られやすい一般式(1)で表される化合物であるためには、1〜3が好ましく、2が最も好ましい。なお、yとzの関係は、y+z=4である。
また、本発明で使用する一般式(2)で表されるモリブデンジチオカルバメートは公知の製造方法で製造することができる。
mは、1〜4の数を表し、中でも本発明の効果が得られやすい一般式(3)で表される化合物であるためには、3又は4が好ましく、4が最も好ましい。なお、mが2以上である場合、一般式(3)中のそれぞれのQは同じ有機酸基であってもよく、違う有機酸基であってもよい。また、本発明の効果がより顕著に得られることから、Qは、組み合わせる一般式(1)で表される2核のモリブデン化合物中のLと同一の有機酸で構成されたものである方が好ましい。
nは、1〜4の数を表し、中でも本発明の効果が得られやすい一般式(4)で表される化合物であるためには、3又は4が好ましく、4が最も好ましい。
また、本発明で使用する一般式(4)で表される化合物は、公知の製造方法で製造することが可能である。
一般式(2)において、R1=R2=R3=R4=C8H17、X1及びX2=S、X3及びX4=Oである2核のモリブデン化合物(A)−1と、一般式(2)において、R1=R2=R3=R4=C13H27、X1及びX2=S、X3及びX4=Oである2核のモリブデン化合物(A)−2と、一般式(2)において、R1=R2=C8H17、R3=R4=C13H27、X1及びX2=S、X3及びX4=Oである2核のモリブデン化合物(A)−3の混合物
(なお、前記C8H17は2−エチルヘキシル基であり、前記C13H27は分岐鎖トリデシル基であり、(A)−1の化合物のMoの含量:(A)−2の化合物のMoの含量:(A)−3の化合物のMoの含量が質量比で25:25:50である。)
一般式(5)において、R51=R61=R52=R62=R53=R63 =R54=R64 =C8H17である3核のモリブデン化合物(B)−1と、一般式(5)において、R51=R61=R52=R62=R53=R63 =R54=R64 =C13H27である3核のモリブデン化合物(B)−2と、一般式(5)において、R51=R61 =C8H17、R52=R62=R53=R63 =R54=R64=C13H27である3核のモリブデン化合物(B)−3と、一般式(5)において、R51=R61 =C13H27、R52=R62=R53=R63 =R54=R64=C8H17である3核のモリブデン化合物(B)−4と、一般式(5)において、R51=R61=R52=R62 =C8H17、R53=R63 =R54=R64 =C13H27である3核のモリブデン化合物(B)−5の混合物
(なお、前記C8H17は2−エチルヘキシル基であり、前記C13H27は分岐鎖トリデシル基であり、(B)−1の化合物のMoの含量:(B)−2の化合物のMoの含量:(B)−3の化合物のMoの含量:(B)−4の化合物のMoの含量:(B)−5の化合物のMoの含量が質量比で6.25:6.25:25:25:37.5である。)
上記の2核のモリブデン化合物(A)と、3核のモリブデン化合物(B)を使用し、2核のモリブデン化合物(A)のモリブデンと、3核のモリブデン化合物(B)のモリブデンの質量比を表1となるように配合した潤滑剤組成物1〜13(実施例品1〜8及び比較例品1〜5)を得た。
上記の潤滑剤組成物を用いて溶解性試験を行った。40℃動粘度22.7mm2/s、100℃動粘度4.39mm2/s、粘度指数VI=102のグループIの鉱物油に潤滑剤組成物1、2、3、5、及び7〜13を全モリブデン含量が200ppmになるよう配合し、潤滑油組成物1〜11を得た。60℃で撹拌しながら溶解させた後、室温(25℃)に戻し、一日放置した。結果を表2に示す。
続いて酸化安定性試験を行った。今回、酸化安定性を直接的に評価する方法として、圧力DSC(PDSC)の測定を採用した。PDSCとは、High−Pressure Differential Scanning Calorimetryの略であり、高圧示差走査熱量測定を指す。この測定により酸化誘導期間がわかり、油の劣化度合いを測定することができる。
測定機器: 圧力DSC DSC 2920(TA Instruments社製)
温度 : 180℃
圧力 : 690kPa
雰囲気 : 空気
評価油量: 3mg
続いて、潤滑特性試験を行った。40℃動粘度22.7mm2/s、100℃動粘度4.39mm2/s、粘度指数VI=102のグループIの鉱物油に潤滑剤組成物1〜13を全モリブデン含量が200ppmになるよう配合した潤滑油組成物1〜11、23、24を試験サンプルとした。試験は、SRV試験機( メーカー名 Optimol、型式 type3 )を用い、以下の条件で、線接触法(Cylinder on Disk)にて試験を行い、摩擦係数について評価した。なお、2核のモリブデン化合物(A)のモリブデンと3核のモリブデン化合物(B)のモリブデンの質量比が、92:8、90:10、85:15の潤滑剤組成物9〜11を用いた潤滑油組成物7〜9の評価は、基油への溶解性が悪く、沈殿が生じたことから評価することが出来なかった。
荷重 200 N
振幅 1.0 mm
周波数 50 Hz
温度 80 ℃
時間 15 min
以下表4に、摩擦係数の測定値を示し、3核のモリブデン化合物(B)のモリブデンの質量比と摩擦係数の関係をグラフ化したものを図1に示す。
Claims (7)
- 2核のモリブデン化合物(A)と、3核のモリブデン化合物(B)を含有し、これらの化合物を質量比が、2核のモリブデン化合物(A)のモリブデン:3核のモリブデン化合物(B)のモリブデン=99.98:0.02〜95:5で表される範囲で含有する、潤滑剤組成物。
- 基油に、請求項1〜5のいずれか一項に記載の潤滑剤組成物をモリブデン含量で50〜5,000質量ppm含有する、潤滑油組成物。
- 潤滑油組成物に使用される基油に、2核のモリブデン化合物(A)及び3核のモリブデン化合物(B)を添加することを含む、潤滑油組成物の摩擦低減作用を向上させる方法であって、2核のモリブデン化合物(A)のモリブデンと3核のモリブデン化合物(B)のモリブデンが質量比で、99.98:0.02〜95:5で表される範囲で添加される、前記方法。
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WO2017002969A1 (ja) * | 2015-07-01 | 2017-01-05 | 出光興産株式会社 | 潤滑油組成物、内燃機関の摩擦低減方法及び潤滑油組成物の製造方法 |
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JP4386630B2 (ja) | 2002-10-23 | 2009-12-16 | コスモ石油ルブリカンツ株式会社 | エンジン油組成物 |
US20050043191A1 (en) | 2003-08-22 | 2005-02-24 | Farng L. Oscar | High performance non-zinc, zero phosphorus engine oils for internal combustion engines |
JP4886304B2 (ja) | 2006-01-27 | 2012-02-29 | 昭和シェル石油株式会社 | グリース組成物 |
JP5203590B2 (ja) | 2006-10-27 | 2013-06-05 | 出光興産株式会社 | 潤滑油組成物 |
WO2011119918A1 (en) * | 2010-03-25 | 2011-09-29 | R.T. Vanderbilt Company, Inc. | Ultra low phosphorus lubricant compositions |
JP5731170B2 (ja) | 2010-11-19 | 2015-06-10 | Jx日鉱日石エネルギー株式会社 | アルミニウム系材料を備えた摺動部用潤滑油組成物及び潤滑方法 |
JP6097296B2 (ja) * | 2012-07-31 | 2017-03-15 | 出光興産株式会社 | 内燃機関用潤滑油組成物 |
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JP2001207185A (ja) * | 1997-09-17 | 2001-07-31 | Infineum Internatl Ltd | 潤滑油組成物 |
JP2008150579A (ja) * | 2006-10-07 | 2008-07-03 | Gkn Driveline Internatl Gmbh | 少なくとも1種類の3核モリブデン化合物およびウレア誘導体増ちょう剤を備える等速継手で使用するためのグリース組成物 |
WO2017002969A1 (ja) * | 2015-07-01 | 2017-01-05 | 出光興産株式会社 | 潤滑油組成物、内燃機関の摩擦低減方法及び潤滑油組成物の製造方法 |
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ES2942414T3 (es) | 2023-06-01 |
CN109477023A (zh) | 2019-03-15 |
EP3483235A1 (en) | 2019-05-15 |
MY197147A (en) | 2023-05-26 |
BR112018077080B1 (pt) | 2020-10-27 |
EP3483235B1 (en) | 2023-01-25 |
JP6433109B2 (ja) | 2018-12-05 |
KR102025518B1 (ko) | 2019-09-25 |
BR112018077080A2 (pt) | 2019-04-02 |
CN109477023B (zh) | 2020-01-24 |
KR20190025630A (ko) | 2019-03-11 |
CA3030539C (en) | 2020-02-25 |
US20190169527A1 (en) | 2019-06-06 |
CA3030539A1 (en) | 2018-01-18 |
WO2018012265A1 (ja) | 2018-01-18 |
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US10920167B2 (en) | 2021-02-16 |
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