JP2008222639A - New compound and lubricating oil composition containing the same - Google Patents

New compound and lubricating oil composition containing the same Download PDF

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JP2008222639A
JP2008222639A JP2007063706A JP2007063706A JP2008222639A JP 2008222639 A JP2008222639 A JP 2008222639A JP 2007063706 A JP2007063706 A JP 2007063706A JP 2007063706 A JP2007063706 A JP 2007063706A JP 2008222639 A JP2008222639 A JP 2008222639A
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lubricating oil
oil composition
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compound
formula
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JP5185549B2 (en
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Kiyoshi Haniyuda
清志 羽生田
Etsushi Nagatomi
悦史 長富
Noriaki Shinoda
憲明 篠田
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Showa Shell Sekiyu KK
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Priority to CL200800678A priority patent/CL2008000678A1/en
Priority to PCT/EP2008/053041 priority patent/WO2008110612A2/en
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    • C07DHETEROCYCLIC COMPOUNDS
    • C07D339/00Heterocyclic compounds containing rings having two sulfur atoms as the only ring hetero atoms
    • C07D339/02Five-membered rings
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    • C10M135/00Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
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    • C10M2205/02Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
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    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
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    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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    • C10N2040/25Internal-combustion engines

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new compound for lubricating oil compositions, free of zinc and any phosphorus component and alternative to ZnDTP. <P>SOLUTION: The new compound is represented by the general formula in the figure (wherein, R<SB>1</SB>and R<SB>2</SB>are each H or a hydrocarbon group optionally substituted with 1-30C heteroatom(s), wherein the sum of the carbon atoms in R<SB>1</SB>and R<SB>2</SB>is ≤40; X is O or S; the heteroatom(s) is O, S, N or a series thereof). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、新規な化合物及びこれを含む潤滑油組成物に関する。   The present invention relates to a novel compound and a lubricating oil composition containing the same.

潤滑油に耐摩耗性および極圧性を付与する為の有効な添加剤として、ジアルキルジチオリン酸亜鉛(ZnDTP)が、長期にわたり、広範な分野の潤滑油に対して用いられてきた。
一方、近年、内燃機関の排出ガスに対する規制は年々厳しさを増しており、排出ガスを浄化するための各種触媒やフィルターの装着が必須のものとなって来ている。例えば、ガソリンエンジンを搭載した車両には、炭化水素(HC)や窒素酸化物(NOx)の浄化を目的として三元触媒が装着されている。また、最近のディーゼルエンジンを搭載した車両には、粒子状物質(PM:Particle Material)の低減を目的として酸化触媒やDPF(Diesel Particulate Filter)が、NOxの浄化を目的としてNOx吸蔵触媒等の後処理装置が装着されるようになってきた。
As an effective additive for imparting wear resistance and extreme pressure properties to lubricating oils, zinc dialkyldithiophosphate (ZnDTP) has been used for a wide range of lubricating oils for a long time.
On the other hand, in recent years, regulations on exhaust gases from internal combustion engines have become more stringent year by year, and it has become essential to install various catalysts and filters for purifying exhaust gases. For example, a vehicle equipped with a gasoline engine is equipped with a three-way catalyst for the purpose of purifying hydrocarbons (HC) and nitrogen oxides (NOx). Also, in vehicles equipped with recent diesel engines, oxidation catalysts and DPFs (Diesel Particulate Filters) are used for the purpose of reducing particulate matter (PM), and NOx storage catalysts are used for the purpose of purifying NOx. Processing devices have come to be installed.

更に、内燃機関においては燃料を燃焼させるが、燃料だけでなく使用される潤滑油(エンジン油)の一部も燃焼室内において燃焼することが避けられないために、エンジン油中に配合されているZnDTPも燃焼し、排出ガス中に亜鉛由来の灰分や、また硫黄分やリン分が含まれることになる。
排出ガスの浄化を目的として装着されている各種の後処理装置においては、排出ガスによる被毒や目詰まりなどによって浄化するための性能が次第に低下していくことが報告されている。例えば、三元触媒は硫黄やリンによる被毒により、また、酸化触媒やNOx吸蔵触媒も硫黄による被毒により著しく性能が低下することが知られている。さらに、DPFは灰分により目詰まりを起こし、車両の運行に悪い影響を及ぼしている。
Furthermore, in an internal combustion engine, fuel is burned, but not only the fuel but also a part of the lubricating oil (engine oil) used is unavoidably burned in the combustion chamber, so it is blended in the engine oil. ZnDTP also burns, and the exhaust gas contains zinc-derived ash, sulfur, and phosphorus.
It has been reported that in various post-treatment devices installed for the purpose of purifying exhaust gas, the performance for purification is gradually lowered due to poisoning or clogging by exhaust gas. For example, it is known that the performance of a three-way catalyst is remarkably deteriorated due to poisoning by sulfur or phosphorus, and that of an oxidation catalyst or a NOx storage catalyst is also significantly deteriorated by poisoning by sulfur. In addition, the DPF is clogged with ash, which adversely affects the operation of the vehicle.

そこで、エンジン油中に使用されているZnDTPの量を減少させることは、これら後処理装置を効果的に作用させ、その使用寿命を延長させ、また環境の保全を図る上で非常に重要であるが、ZnDTPの使用量を減少させた場合にも潤滑油の耐摩耗性を低下させないように維持することが同時に重要である。
こうした背景からZnDTPをはじめとする既知の亜鉛及びリンを含有する添加剤の上記したような欠点を考慮して、亜鉛もリンも含まない、少なくともそれらの含有量を減少させた潤滑油用の添加剤を得るための努力が払われてきた。
このようなものの一環として、無亜鉛(無灰)、無リンの潤滑油添加剤としては、例えば、2,5−ジメルカプト−1,3,4−チアジアゾールと不飽和モノ−、ジ−およびトリ−グリセリドとの反応生成物(特許文献1)、ジアルキルジチオカルバメート誘導有機エーテル(特許文献2)、及び5−アルキル−2−チオン−1,3,4−チアジアゾリジン化合物などが挙げられる(特許文献3)。
Therefore, reducing the amount of ZnDTP used in engine oil is very important for effectively operating these aftertreatment devices, extending their service life, and protecting the environment. However, it is also important to maintain the wear resistance of the lubricating oil so as not to decrease even when the amount of ZnDTP used is reduced.
In view of the above-mentioned drawbacks of known additives containing zinc and phosphorus such as ZnDTP, zinc and phosphorus are added, and at least their contents are reduced for this reason. Efforts have been made to obtain drugs.
As part of such, zinc-free (ashless), phosphorus-free lubricating oil additives include, for example, 2,5-dimercapto-1,3,4-thiadiazole and unsaturated mono-, di- and tri- Reaction products with glycerides (Patent Document 1), dialkyldithiocarbamate-derived organic ethers (Patent Document 2), 5-alkyl-2-thione-1,3,4-thiadiazolidine compounds and the like (Patent Documents) 3).

また、上記した内燃機関用の潤滑油のみならず、機械油、油圧作動油、ギヤ油、グリース等においても、環境に対する負荷を低減するという観点から、亜鉛(Zn)やモリブデン(Mo)などの金属分、リン(P)を含有しないもの又はこれらを低減したものするという要請は一層強くなってきている。
米国特許第5,512,190号 米国特許第5,514,189号 特表2004−528475
In addition to the lubricating oil for the internal combustion engine described above, not only machine oil, hydraulic fluid, gear oil, grease, etc., but also zinc (Zn), molybdenum (Mo), etc. from the viewpoint of reducing environmental load. There has been an increasing demand for a metal component that does not contain phosphorus (P) or to reduce these components.
US Pat. No. 5,512,190 US Pat. No. 5,514,189 Special table 2004-528475

本発明は、亜鉛成分、リン成分を含まず、ZnDTPに替わる新規な化合物及びこれを使用した潤滑油組成物を提供しようとするものである。   The present invention is intended to provide a novel compound that does not contain a zinc component and a phosphorus component and replaces ZnDTP, and a lubricating oil composition using the same.

本発明は、下記の一般式(1)で示される化合物であって、

Figure 2008222639
上記一般式(1)中のR、Rは、水素及び/または炭素数1〜30の直鎖または分岐鎖の飽和または不飽和炭化水素又はこれらの一部をヘテロ原子で置換した置換を含む置換炭化水素である。また、このR、Rはそれぞれ同一でも異なっていてもよく、R及びRの炭素数の合計が40以下であり、Xは酸素または硫黄で形成されている。
そして、上記一般式(1)のR、Rの置換炭化水素中のヘテロ原子は、酸素、硫黄、窒素のいずれかまたはこれらの組み合わせであり、このヘテロ原子は、アルコール、ケトン、エステル、エーテル、ニトリル、アミン、スルフィドリル、チオケトン、チオエステル、チオエーテル、ポリエーテル又はアミドなどの形をとっているものがある。
この化合物は、添加剤として潤滑油組成物中に含有されて使用され、通常、0.1質量%以上の添加量で使用される。 The present invention is a compound represented by the following general formula (1),
Figure 2008222639
R 1 and R 2 in the general formula (1) are hydrogen and / or a linear or branched saturated or unsaturated hydrocarbon having 1 to 30 carbon atoms, or a substituent obtained by substituting a part thereof with a hetero atom. It is a substituted hydrocarbon containing. R 1 and R 2 may be the same or different, and the total number of carbon atoms of R 1 and R 2 is 40 or less, and X is formed of oxygen or sulfur.
And the hetero atom in the substituted hydrocarbon of R 1 and R 2 in the general formula (1) is any one of oxygen, sulfur, nitrogen, or a combination thereof, and this hetero atom is an alcohol, ketone, ester, Some take the form of ether, nitrile, amine, sulfhydryl, thioketone, thioester, thioether, polyether or amide.
This compound is used by being contained in a lubricating oil composition as an additive, and is usually used in an addition amount of 0.1% by mass or more.

本発明によれば、ZnDTPに替わる新規な化合物として潤滑油組成物、特にエンジン用の潤滑油組成物に対する添加剤として有用であり、耐摩耗性及び酸化防止性能に優れ、排出ガスの浄化に効果的である。また、機械油、油圧作動油、ギヤ油、グリース等においても有効に使用することができる。   INDUSTRIAL APPLICABILITY According to the present invention, it is useful as an additive to a lubricating oil composition, particularly an engine lubricating oil composition, as a novel compound replacing ZnDTP, and is excellent in wear resistance and antioxidant performance, and effective in purifying exhaust gas. Is. It can also be used effectively in machine oil, hydraulic fluid, gear oil, grease, and the like.

上記した一般式(1)で示される化合物において、

Figure 2008222639
式(1)中のR、Rは、水素及び/または炭素数1〜30の炭化水素である。この炭化水素は、直鎖であっても良いし、分岐鎖のものであってもよい。また、飽和炭化水素でも不飽和炭化水素でもよい。 In the compound represented by the general formula (1),
Figure 2008222639
R 1 and R 2 in the formula (1) are hydrogen and / or hydrocarbon having 1 to 30 carbon atoms. This hydrocarbon may be linear or branched. Further, it may be a saturated hydrocarbon or an unsaturated hydrocarbon.

炭化水素としては、例えば、一般式(2)で表される飽和炭化水素がある。
(化3)
−C2n+1 (2)

こうしたものとして、例えば、メチル、エチル、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、ドデシル、ウンデシル、トリデシル、テトラデシル、ペンタデシル、ヘキサデシル、ヘプタデシル、オクタデシル、ノナデシル、エイコシル、ヘンイコシル、ドコシル、トリコシル、テトラコシル、ペンタコシル、ヘキコシル、ヘプタコシル、オクタコシル、ノナコシル、トリアコンタシルなどを挙げることができる。
Examples of the hydrocarbon include a saturated hydrocarbon represented by the general formula (2).
(Chemical formula 3)
-C n H 2n + 1 (2)

As such, for example, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, dodecyl, undecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heicosyl, docosyl, Tricosyl, tetracosyl, pentacosyl, hexosyl, heptacosyl, octacosyl, nonacosyl, triacontacyl and the like can be mentioned.

また、上記炭化水素は、その一部をヘテロ原子で置換した置換基とすることによって得られる物質(本発明においてはこれを「置換炭化水素」と称する。)とすることができる。
こうしたヘテロ原子としては、酸素、硫黄、窒素のいずれか又はこれらが共存しているものがあり、このヘテロ原子は、通常、主としてアルコール、ケトン、エステル、エーテル、ニトリル、アミン、スルフィドリル、チオケトン、チオエステル、チオエーテル(スルフィド)、ポリエーテル又はアミドなどの形をとっているものである。
In addition, the hydrocarbon can be a substance obtained by making a part of the hydrocarbon group substituted with a hetero atom (in the present invention, this is referred to as “substituted hydrocarbon”).
Such heteroatoms include oxygen, sulfur, nitrogen, or those in which they coexist, and these heteroatoms are usually mainly alcohols, ketones, esters, ethers, nitriles, amines, sulfhydryls, thioketones, It takes the form of thioester, thioether (sulfide), polyether or amide.

酸素を含む置換炭化水素としては、例えば、一般式(3)で表されるアルコール体がある。
(化4)
−C2nOH (3)

こうしたものには、ヒドロキシメチル、ヒドロキシエチル、ヒドロキシプロピル、ヒドロキシブチル、ヒドロキシペンチル、ヒドロキシヘキシル、ヒドロキシヘプチル、ヒドロキシオクチル、ヒドロキシノニル、ヒドロキシデシル、ヒドロキシドデシル、ヒドロキシウンデシル、ヒドロキシトリデシル、ヒドロキシテトラデシル、ヒドロキシペンタデシル、ヒドロキシヘキサデシル、ヒドロキシヘプタデシル、ヒドロキシオクタデシル、ヒドロキシノナデシル、ヒドロキシエイコシル、ヒドロキシヘンイコシル、ヒドロキシドコシル、ヒドロキシトリコシル、ヒドロキシテトラコシル、ヒドロキシペンタコシル、ヒドロキシヘキコシル、ヒドロキシヘプタコシル、ヒドロキシオクタコシル、ヒドロキシノナコシル、ヒドロキシトリアコンタシルなどがある。
As the substituted hydrocarbon containing oxygen, for example, there is an alcohol form represented by the general formula (3).
(Chemical formula 4)
-C n H 2n OH (3)

These include hydroxymethyl, hydroxyethyl, hydroxypropyl, hydroxybutyl, hydroxypentyl, hydroxyhexyl, hydroxyheptyl, hydroxyoctyl, hydroxynonyl, hydroxydecyl, hydroxydodecyl, hydroxyundecyl, hydroxytridecyl, hydroxytetradecyl, Hydroxypentadecyl, hydroxyhexadecyl, hydroxyheptadecyl, hydroxyoctadecyl, hydroxynonadecyl, hydroxyeicosyl, hydroxyhenicosyl, hydroxydocosyl, hydroxytricosyl, hydroxytetracosyl, hydroxypentacosyl, hydroxyhexocosyl , Hydroxyheptacosyl, hydroxyoctacosyl, hydroxynonacosyl, hydroxytriacontacy And the like.

酸素を含む置換炭化水素としては、例えば、一般式(4)で表されるケトン体がある。
(化5)
−C2n−C(O)−C2m+1 (4)
(式4中、n+m≦29, n≧0である。)
こうしたものには、例えば、−CC(O)C(3−オキソペンチル)がある。また、nが0の場合は、例えば−C(O)C(プロパノイル)が挙げられる。
As the substituted hydrocarbon containing oxygen, for example, there is a ketone body represented by the general formula (4).
(Chemical formula 5)
-C n H 2n -C (O) -C m H 2m + 1 (4)
(In Formula 4, n + m ≦ 29 and n ≧ 0.)
Such ones include, for example, -C 2 H 4 C (O) C 2 H 5 (3- oxopentyl). When n is 0, include, for example, -C (O) C 2 H 5 ( propanoyl).

酸素を含む置換炭化水素としては、また、一般式(5)、(6)で表されるエステル体がある。
(化6)
−C2nCOOC2m+1 (5)
(式5中、n+m≦29 である。)
こうしたものには、例えば、 −CCOOCH(3−メトキシ3オキソプロピル)が挙げられる。
(化7)
−C2nOC(O)C2m+1 (6)
(式6中、n+m≦29 である。)
こうしたものには、例えば、−COC(O)CH(2−(1−オキソエトキシ)エチル)が挙げられる。
Examples of the substituted hydrocarbon containing oxygen include ester bodies represented by general formulas (5) and (6).
(Chemical formula 6)
-C n H 2n COOC m H 2m + 1 (5)
(In Formula 5, n + m ≦ 29)
Such things, for example, -C 2 H 4 COOCH 3 ( 3- methoxy 3-oxo-propyl) and the like.
(Chemical formula 7)
-C n H 2n OC (O) C m H 2m + 1 (6)
(In Formula 6, n + m ≦ 29)
Such includes, for example, —C 2 H 4 OC (O) CH 3 (2- (1-oxoethoxy) ethyl).

酸素を含む置換炭化水素としては、下記する一般式(7)で表されるエーテル体がある。
(化8)
−C2nOC2m+1 (7)
(式7中、n+m≦30, n≧1 である。)
こうしたものには、例えば、−C−O−CH (3−メトキシプロピル)が挙げられる。
As the substituted hydrocarbon containing oxygen, there is an ether body represented by the following general formula (7).
(Chemical Formula 8)
-C n H 2n OC m H 2m + 1 (7)
(In Formula 7, n + m ≦ 30 and n ≧ 1.)
Such things, for example, -C 3 H 6 -O-CH 3 (3- methoxypropyl) can be mentioned.

窒素を含む置換炭化水素としては、例えば、一般式(8)で表されるニトリル体がある。
(化9)
−C2nCN (8)

こうしたものには、例えば、シアノメチル、シアノエチル、シアノプロピル、シアノブチル、シアノペンチル、シアノヘキシル、シアノヘプチル、シアノオクチル、シアノノニル、シアノデシル、シアノドデシル、シアノウンデシル、シアノトリデシル、シアノテトラデシル、シアノペンタデシル、シアノヘキサデシル、シアノヘプタデシル、シアノオクタデシル、シアノノナデシル、シアノエイコシル、シアノヘンイコシル、シアノドコシル、シアノトリコシル、シアノテトラコシル、シアノペンタコシル、シアノヘキコシル、シアノヘプタコシル、シアノオクタコシル、シアノノナコシル、シアノトリアコンタシルなどが挙げられる。
As a substituted hydrocarbon containing nitrogen, there exists a nitrile body represented by General formula (8), for example.
(Chemical 9)
-C n H 2n CN (8)

These include, for example, cyanomethyl, cyanoethyl, cyanopropyl, cyanobutyl, cyanopentyl, cyanohexyl, cyanoheptyl, cyanooctyl, cyanononyl, cyanodecyl, cyanododecyl, cyanoundecyl, cyanotridecyl, cyanotetradecyl, cyanopentadecyl , Cyanohexadecyl, cyanoheptadecyl, cyanooctadecyl, cyanononadecyl, cyanoeicosyl, cyanohenicosyl, cyanodocosyl, cyanotricosyl, cyanotetracosyl, cyanopentacosyl, cyanohexosyl, cyanoheptacosyl, cyanooctacosyl , Cyanonacosyl, cyanotriacontacyl and the like.

窒素を含む置換炭化水素として、例えば、一般式(9)で表される1級アミン体がある。
(化10)
−C2nNH (9)

こうしたものには、例えば、アミノメチル、アミノエチル、アミノプロピル、アミノブチル、アミノペンチル、アミノヘキシル、アミノヘプチル、アミノオクチル、アミノノニル、アミノデシル、アミノドデシル、アミノウンデシル、アミノトリデシル、アミノテトラデシル、アミノペンタデシル、アミノヘキサデシル、アミノヘプタデシル、アミノオクタデシル、アミノノナデシル、アミノエイコシル、アミノヘンイコシル、アミノドコシル、アミノトリコシル、アミノテトラコシル、アミノペンタコシル、アミノヘキコシル、アミノヘプタコシル、アミノオクタコシル、アミノノナコシル、アミノトリアコンタシルなどがある。
As a substituted hydrocarbon containing nitrogen, there exists a primary amine body represented by General formula (9), for example.
(Chemical Formula 10)
-C n H 2n NH 2 (9 )

These include, for example, aminomethyl, aminoethyl, aminopropyl, aminobutyl, aminopentyl, aminohexyl, aminoheptyl, aminooctyl, aminononyl, aminodecyl, aminododecyl, aminoundecyl, aminotridecyl, aminotetradecyl, Aminopentadecyl, aminohexadecyl, aminoheptadecyl, aminooctadecyl, aminononadecyl, aminoeicosyl, aminohenicosyl, aminodocosyl, aminotricosyl, aminotetracosyl, aminopentacosyl, aminohexocosyl, aminoheptacosyl, amino There are octacosyl, aminononacosyl, aminotriacontacyl and the like.

窒素を含む置換炭化水素として、また、一般式(10)で表される2級アミン体がある。
(化11)
−C2nNHC2m+1 (10)
(式10中、n+m≦30 である。)
こうしたものには、例えば、−CNHCH (3−(N−メチルアミノ)プロピル)が挙げられる。
As a substituted hydrocarbon containing nitrogen, there is also a secondary amine compound represented by the general formula (10).
(Chemical Formula 11)
-C n H 2n NHC m H 2m + 1 (10)
(In formula 10, n + m ≦ 30.)
Such things, for example, -C 3 H 6 NHCH 3 ( 3- (N- methylamino) propyl) and the like.

窒素を含む置換炭化水素として、一般式(11)で表される3級アミン体がある。
(化12)
−C2nN(C2m+1)(C2q+1) (11)
(式11中、n+m+q≦30 である。)
こうしたものには、例えば、−CN(CH)(C) (3−(N,N−メチル エチルアミノ)プロピル)が挙げられる。
As a substituted hydrocarbon containing nitrogen, there is a tertiary amine compound represented by the general formula (11).
(Chemical Formula 12)
-C n H 2n N (C m H 2m + 1) (C q H 2q + 1) (11)
(In Formula 11, n + m + q ≦ 30.)
Such things, for example, -C 3 H 6 N (CH 3) (C 2 H 5) (3- (N, N- methylethylamino) propyl) and the like.

硫黄を含む置換炭化水素としては、例えば、一般式(12)で表されるスルフィドリル体がある。
(化13)
−C2nSH (12)
こうしたものには、例えば、スルフィドリルメチル、スルフィドリルエチル、スルフィドリルプロピル、スルフィドリルブチル、スルフィドリルペンチル、スルフィドリルヘキシル、スルフィドリルヘプチル、スルフィドリルオクチル、スルフィドリルノニル、スルフィドリルデシル、スルフィドリルドデシル、スルフィドリルウンデシル、スルフィドリルトリデシル、スルフィドリルテトラデシル、スルフィドリルペンタデシル、スルフィドリルヘキサデシル、スルフィドリルヘプタデシル、スルフィドリルオクタデシル、スルフィドリルノナデシル、スルフィドリルエイコシル、スルフィドリルヘンイコシル、スルフィドリルドコシル、スルフィドリルトリコシル、スルフィドリルテトラコシル、スルフィドリルペンタコシル、スルフィドリルヘキコシル、スルフィドリルヘプタコシル、スルフィドリルオクタコシル、スルフィドリルノナコシル、スルフィドリルトリアコンタシル等が挙げられる。
As a substituted hydrocarbon containing sulfur, there exists a sulfhydryl body represented by General formula (12), for example.
(Chemical Formula 13)
-C n H 2n SH (12)
These include, for example, sulfhydryl methyl, sulfhydryl ethyl, sulfhydryl propyl, sulfhydryl butyl, sulfhydryl pentyl, sulfhydryl hexyl, sulfhydryl heptyl, sulfhydryl octyl, sulfhydryl nonyl, sulfhydryl decyl, sulfhydryl decyl. , Sulfide yl undecyl, sulfhydryl tridecyl, sulfhydryl tetradecyl, sulfhydryl pentadecyl, sulfhydryl hexadecyl, sulfhydryl heptadecyl, sulfhydryl octadecyl, sulfhydryl nonadecyl, sulfhydryl eicosyl, sulfhydryl heicosyl , Sulfide Lildocosyl, Sulfide Lyl Tricosyl, Sulfide Lil Tetracosyl, Sulfide Lyl Pencosyl, Sulfi Riruhekikoshiru, sulfide drill hepta waist Lumpur, sulfide drill octa waist Lumpur, sulfide drill Roh Naco sill, sulfide drill triacontanyl sill, and the like.

硫黄を含む置換炭化水素として、一般式(13)で表されるチオケトン体がある。
(化14)
−C2nC(S)C2m+1 (13)
(式13中、n+m≦29, n≧0 である。)
こうしたものには、例えば、−CC(S)C (4−チオヘキシル)が挙げられる。
As a substituted hydrocarbon containing sulfur, there is a thioketone body represented by the general formula (13).
(Chemical formula 14)
-C n H 2n C (S) C m H 2m + 1 (13)
(In Formula 13, n + m ≦ 29 and n ≧ 0.)
Such things, for example, -C 3 H 6 C (S ) C 2 H 5 (4- thiohexyl) and the like.

硫黄を含む置換炭化水素として、一般式(14)、(15)で表されるチオエステル体がある。
(化15)
−C2nCSSC2m+1 (14)
(式14中、n+m≦30 である。)
こうしたものには、例えば、 −CCSSCH (3−メチルスルフィドチオプロピル)が挙げられる。
(化16)
−C2nSC(S)C2m+1 (15)
(式15中、n+m≦30 である。)
こうしたものには、例えば、 −CSC(S)CH (2−(1−チオエチルスルフィド)エチル)が挙げられる。
As substituted hydrocarbons containing sulfur, there are thioesters represented by general formulas (14) and (15).
(Chemical formula 15)
−C n H 2n CSSC m H 2m + 1 (14)
(In Formula 14, n + m ≦ 30.)
Such things, for example, -C 2 H 4 CSSCH 3 ( 3- methyl sulfide thio propyl) and the like.
(Chemical formula 16)
-C n H 2n SC (S) C m H 2m + 1 (15)
(In Formula 15, n + m ≦ 30.)
These include, for example, —C 2 H 4 SC (S) CH 3 (2- (1-thioethyl sulfide) ethyl).

硫黄を含む置換炭化水素として、また、一般式(16)で表されるチオエーテル体(スルフィド体)がある。
(化17)
−C2nSC2m+1 (16)
(式16中、n+m≦30, n≧1 である。)
こうしたものには、例えば、 −CSCH (2−(メチルスルフィド)エチル)が挙げられる。
As a substituted hydrocarbon containing sulfur, there is a thioether body (sulfide body) represented by the general formula (16).
(Chemical Formula 17)
-C n H 2n SC m H 2m + 1 (16)
(In Formula 16, n + m ≦ 30 and n ≧ 1)
Such includes, for example, —C 2 H 4 SCH 3 (2- (methyl sulfide) ethyl).

酸素と窒素を含む置換炭化水素として、一般式(17)で表されるアミド体がある。
(化18)
−C2nCONH2 (17)
こうしたものには、例えば、 −C10CONH (6−アミドヘキシル)が挙げられる。
As a substituted hydrocarbon containing oxygen and nitrogen, there is an amide compound represented by the general formula (17).
(Chemical formula 18)
—C n H 2n CONH 2 (17)
Such things, for example, -C 5 H 10 CONH 2 ( 6- amide hexyl) and the like.

複数のエーテル結合を有する置換炭化水素として、エーテル結合の数に応じて、一般式(18)、(19)、(20)で表されるポリエーテル体がある。
(化19)
−C2nOC2mOC2q+1 (18)
(式18中、n+m+q≦30である。)
こうしたエーテル結合が2個存在する置換炭化水素には、例えば、 −CHOC24OCH3 (2,5−ジオキサヘキシル)がある。
(化20)
−C2nOC2mOC2qOC2r+1 (19)
(式19中、n+m+q+r≦30である。)
このようなエーテル結合が3個存在する置換炭化水素には、例えば、 −CHOC4OC24OCH3 (2,5,8−トリオキサノニル)がある。
(化21)
−C2nOC2mOC2qOC2rOC2t+1 (20)
(式20中、n+m+q+r+t≦30である。)
こうしたエーテル結合が4個存在する置換炭化水素には、例えば、−CHOC24OC24OC24OCH3 (2,5,8,11−テトラオキサドデシル)等が挙げられる。
As substituted hydrocarbons having a plurality of ether bonds, there are polyether bodies represented by general formulas (18), (19), and (20) according to the number of ether bonds.
(Chemical formula 19)
-C n H 2n OC m H 2m OC q H 2q + 1 (18)
(In formula 18, n + m + q ≦ 30.)
An example of a substituted hydrocarbon having two such ether bonds is —CH 2 OC 2 H 4 OCH 3 (2,5-dioxahexyl).
(Chemical formula 20)
-C n H 2n OC m H 2m OC q H 2q OC r H 2r + 1 (19)
(In Formula 19, n + m + q + r ≦ 30.)
An example of a substituted hydrocarbon having three such ether bonds is —CH 2 OC 2 H 4 OC 2 H 4 OCH 3 (2,5,8-trioxanonyl).
(Chemical formula 21)
-C n H 2n OC m H 2m OC q H 2q OC r H 2r OC t H 2t + 1 (20)
(In Formula 20, n + m + q + r + t ≦ 30.)
Examples of such a substituted hydrocarbon having four ether bonds include —CH 2 OC 2 H 4 OC 2 H 4 OC 2 H 4 OCH 3 (2,5,8,11-tetraoxadodecyl). .

上記のR、Rは、それぞれ同一のものであってもよいし、異なっていてもよく、通常そのR及びRの炭素数の合計が40以下になるようにするとよい。
また、上記の式1中のXは、酸素または硫黄によって構成されている。
R 1, R 2 described above may be those same respectively, may be different, usually may the total number of carbon atoms of R 1 and R 2 is set to be 40 or less.
Moreover, X in said Formula 1 is comprised by oxygen or sulfur.

この化合物は、潤滑油組成物の構成成分として添加されて使用することができる。その添加量は特に限定されるものではないが、通常、潤滑油組成物中の含有量として0.1質量%以上となる量で使用すると好ましい。
特に、エンジン用の潤滑油組成物に使用すると、高性能を得ることができるが、通常、下記する金属清浄剤、無灰分散剤、酸化防止剤などと併用することによって、一層効果的に使用することができる。
また、この潤滑油組成物をギヤ油、機械油、油圧作動油またはグリースにする場合には、用途に応じた適宜の添加剤と併せて用いることができる。
This compound can be added and used as a component of the lubricating oil composition. The addition amount is not particularly limited, but it is usually preferable to use it in an amount of 0.1% by mass or more as the content in the lubricating oil composition.
In particular, when used in a lubricating oil composition for an engine, high performance can be obtained, but it is usually used more effectively by using in combination with the following metal detergent, ashless dispersant, antioxidant, and the like. be able to.
In addition, when this lubricating oil composition is used as gear oil, machine oil, hydraulic fluid or grease, it can be used in combination with appropriate additives according to the application.

上記金属清浄剤としては、例えば、アルカリ土類金属塩型清浄剤があり、こうしたものとしてCaサリシレート、Caスルフォネート、Caフィネート、Mgサリシレート、Mgスルフォネート、Mgフィネートなどを用いることができる。   Examples of the metal detergent include alkaline earth metal salt-type detergents, and examples thereof include Ca salicylate, Ca sulfonate, Ca finate, Mg salicylate, Mg sulfonate, and Mg finate.

無灰分散剤としては、例えば、モノイミド型あるいはビスイミド型のアルケニルコハク酸イミド若しくはアルキルコハク酸イミド、またはそれらのホウ素誘導体を使用することができる。また、必要に応じてさらに異なる種類の無灰分散剤を使用してもよく、こうしたものとして、例えば、ポリアルキレンアミド系、ベンジルアミン系、コハク酸エステル系のものがある。これらの分散剤は、ホウ素化されていてもよい。
これらの無灰分散剤は1種類を単独で用いたり、2種以上を併用してもかまわない。
上記した無灰分散剤として、分散性を有する添加剤、例えば、粘度指数向上剤等の分散性を付与することができる重合性化合物を併用したり、単独で用いることもできる。
As the ashless dispersant, for example, monoimide type or bisimide type alkenyl succinimide or alkyl succinimide, or boron derivatives thereof can be used. Further, different types of ashless dispersants may be used as necessary, and examples thereof include polyalkylene amide type, benzylamine type, and succinic acid ester type. These dispersants may be borated.
These ashless dispersants may be used alone or in combination of two or more.
As the above ashless dispersant, an additive having dispersibility, for example, a polymerizable compound capable of imparting dispersibility such as a viscosity index improver may be used in combination or used alone.

上記酸化防止剤としては、アミン系酸化防止剤やフェノール系酸化防止剤を使用することができる。
アミン系酸化防止剤としては、芳香族アミン系酸化防止剤があり、例えば、p,p’−ジオクチル−ジフェニルアミンなどのジアルキル−ジフェニルアミン類、モノ−t−ブチルジフェニルアミンなどのモノアルキルジフェニルアミン類、ジ(2,4−ジエチルフェニル)アミン、ジ(2−エチル−4−ノニルフェニル)アミンなどのビス(ジアルキルフェニル)アミン類、オクチルフェニル−1−ナフチルアミンなどのアルキルフェニル−1−ナフチルアミン類、フェニル−1−ナフチルアミンなどのアリール−ナフチルアミン類、N,N’−ジイソプロピル−p−フェニレンジアミンなどのフェニレンジアミン類、3,7−ジオクチルフェノチアジンなどのフェノチアジン類などが挙げられる。
As said antioxidant, an amine antioxidant and a phenolic antioxidant can be used.
Examples of amine-based antioxidants include aromatic amine-based antioxidants such as dialkyl-diphenylamines such as p, p′-dioctyl-diphenylamine, monoalkyldiphenylamines such as mono-t-butyldiphenylamine, di ( 2,4-diethylphenyl) amine, bis (dialkylphenyl) amines such as di (2-ethyl-4-nonylphenyl) amine, alkylphenyl-1-naphthylamines such as octylphenyl-1-naphthylamine, phenyl-1 -Aryl-naphthylamines such as naphthylamine, phenylenediamines such as N, N'-diisopropyl-p-phenylenediamine, and phenothiazines such as 3,7-dioctylphenothiazine.

また、フェノール系酸化防止剤としては、例えば、2−t−ブチルフェノールなどのアルキルフェノール類、2,6−ジ−t−ブチル−4−メトキシフェノールなどのアルコキシフェノール類、3,5−ジ−t−ブチル−4−ヒドロキシベンジルメルカプト−オクチルアセテートなど、ベンゼンプロパン酸3,5−ビス(1,1−ジメチル−エチル)−4−ヒドロキシ−C7〜C9側鎖アルキルエステル(チバ・スペシャルティ・ケミカルズ社製:IrganoxL135)などのアルキル−3−(3,5−ジ−t−ブチル−4−ヒドロキシフェニル)プロピオネート類、4,4’−チオビス(3−メチル−6−t−ブチルフェノール)(川口化学社製:アンテージRC)、2,2’−チオビス(4,6−ジ−t−ブチル−レゾルシン)などのビスフェノール類、2,6−ビス(2’−ヒドロキシ−3’−t−ブチル−5’−メチル−ベンジル)−4−メチルフェノールなどのポリフェノール類がある。   Examples of the phenolic antioxidant include alkylphenols such as 2-t-butylphenol, alkoxyphenols such as 2,6-di-t-butyl-4-methoxyphenol, 3,5-di-t- Butyl-4-hydroxybenzyl mercapto-octyl acetate, etc., benzenepropanoic acid 3,5-bis (1,1-dimethyl-ethyl) -4-hydroxy-C7-C9 side chain alkyl ester (Ciba Specialty Chemicals): Alkyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionates such as Irganox L135), 4,4′-thiobis (3-methyl-6-tert-butylphenol) (manufactured by Kawaguchi Chemical Co., Ltd .: Antage RC), 2,2′-thiobis (4,6-di-t-butyl-resorcin), etc. Bisphenols, 2,6-bis (2'-hydroxy-3'-t-butyl-5'-methyl-benzyl) - 4 there are polyphenols, such as methyl phenol.

(実施例1)
上記化学式(1)で示される化合物の一つとして、下記の化学式(21)で表される4,5−Bis(dodecathio)−1,3−dithiole−2−thione(DTTC12)がある。

Figure 2008222639
(Example 1)
As one of the compounds represented by the chemical formula (1), there is 4,5-Bis (dodecathio) -1,3-dithiole-2-thione (DTTC12) represented by the following chemical formula (21).
Figure 2008222639

この化学式(21)の化合物は次のようにして製造することができる。

Figure 2008222639
The compound of the chemical formula (21) can be produced as follows.
Figure 2008222639

合成に当りナスフラスコ、スターラーを準備し、ドラフト内に反応装置を用意する。
ナスフラスコに、ビス(テトラ−n−ブチルアンモニウム)ビス(1,3−ジチオール−2−チオン−4,5−ジチオレート)亜鉛錯体20.045g(21.256mmol)、1−ヨードドデカン25.180g(85.004mmol)、アセトニトリルを加え、スターラーチップを投入し、室温、窒素雰囲気下で8時間攪拌し反応を行った。
反応終了後、エバポレーターにて溶媒(アセトニトリル)を留去し、次に、カラムクロマトグラフィー(展開溶媒は、ジクロロメタン:n−ヘキサン=2:3の混合溶液)により不純物を分離し、展開溶媒を留去した後、減圧乾燥し16.830g(収率74%)の黄色板状結晶の化学式(21)の化合物を得た。
この化合物について、質量分析を行い(EI+,70eV)、相対強度m/z=534〔M,100%〕と、m/z=536〔(M+2),約26%)を確認し、同定した。
For synthesis, a eggplant flask and a stirrer are prepared, and a reactor is prepared in the draft.
In an eggplant flask, 20.45 g (21.256 mmol) of bis (tetra-n-butylammonium) bis (1,3-dithiol-2-thione-4,5-dithiolate) zinc complex, 25.180 g of 1-iodododecane ( 85.004 mmol), acetonitrile was added, a stirrer chip was added, and the reaction was performed by stirring for 8 hours at room temperature in a nitrogen atmosphere.
After completion of the reaction, the solvent (acetonitrile) is distilled off with an evaporator, then impurities are separated by column chromatography (developing solvent is a mixed solution of dichloromethane: n-hexane = 2: 3), and the developing solvent is distilled off. After leaving, it was dried under reduced pressure to obtain 16.830 g (yield 74%) of the compound of the chemical formula (21) as yellow plate crystals.
The compound was subjected to mass spectrometry (EI +, 70 eV), and the relative intensity m / z = 534 [M + , 100%] and m / z = 536 [(M + 2) + , about 26%) were confirmed and identified. did.

(実施例2)
上記した一般式(1)で示される化合物の一つとして、下記の化学式(22)で表される4,5−Bis(octadecathio)−1,3−dithiole−2−thione(DTTC18)がある。

Figure 2008222639
(Example 2)
As one of the compounds represented by the above general formula (1), there is 4,5-Bis (octadecatio) -1,3-dithiole-2-thione (DTTC18) represented by the following chemical formula (22).
Figure 2008222639

この化学式(22)の化合物は次のようにして製造することができる。

Figure 2008222639
The compound of the chemical formula (22) can be produced as follows.
Figure 2008222639

合成に当りナスフラスコ、スターラーを準備し、ドラフト内に反応装置を用意する。
ナスフラスコに、ビス(テトラ−n−ブチルアンモニウム)ビス(1,3−ジチオール−2−チオン−4,5−ジチオレート)亜鉛錯体12.003g(12.728mmol)、1−ヨードオクタデカン19.375g(50.935mmol)、アセトニトリルを加え、スターラーチップを投入し、室温窒素雰囲気下で8時間攪拌し反応を行った。
反応終了後、エバポレーターにて溶媒(アセトニトリル)を留去し、次に、カラムクロマトグラフィー(展開溶媒は、ジクロロメタン:n−ヘキサン=2:3の混合溶液)により不純物を分離し、展開溶媒を留去した後、減圧乾燥し11.1g(収率62%)の黄色板状結晶の化学式(22)の化合物を得た。
この化合物について、質量分析を行い(EI+,70eV)、相対強度m/z=702〔M,100%〕と、m/z=702〔(M+2),約30%)を確認し、同定した。
For synthesis, a eggplant flask and a stirrer are prepared, and a reactor is prepared in the draft.
In an eggplant flask, 12.03 g (12.728 mmol) of bis (tetra-n-butylammonium) bis (1,3-dithiol-2-thione-4,5-dithiolate) zinc complex, 19.375 g of 1-iodooctadecane ( 50.935 mmol), acetonitrile was added, a stirrer chip was added, and the reaction was carried out by stirring for 8 hours in a nitrogen atmosphere at room temperature.
After completion of the reaction, the solvent (acetonitrile) is distilled off with an evaporator, then impurities are separated by column chromatography (developing solvent is a mixed solution of dichloromethane: n-hexane = 2: 3), and the developing solvent is distilled off. After leaving, it was dried under reduced pressure to obtain 11.1 g (yield 62%) of the compound of the chemical formula (22) as yellow plate crystals.
The compound was subjected to mass spectrometry (EI +, 70 eV), and the relative intensity m / z = 702 [M + , 100%] and m / z = 702 [(M + 2) + , about 30%) were confirmed and identified. did.

(実施例3)
上記した一般式(1)で示される化合物の一つとして、下記の化学式(23)で表される4,5−Bis(dodecathio)−1,3−dithiole−2−one(DTTOC12)がある。

Figure 2008222639
(Example 3)
One of the compounds represented by the above general formula (1) is 4,5-Bis (dodecathio) -1,3-dithiole-2-one (DTTOC12) represented by the following chemical formula (23).
Figure 2008222639

この化学式(23)の化合物は次のようにして製造することができる。

Figure 2008222639
The compound of the chemical formula (23) can be produced as follows.
Figure 2008222639

ナスフラスコ、スターラーを準備し、ドラフト内に反応装置を用意する。
ナスフラスコに、実施例1で合成した4,5−Bis(dodecathio)−1,3−dithiole−2−thione(DTTC12)11.0g(20.56mmol)、酢酸水銀(II)1.638g(5.1400mmol)、クロロホルム50ml、酢酸65mlを加え、スターラーチップを投入し、室温、窒素雰囲気下で30分間攪拌し反応を行った。
反応終了後、溶液をセライトを用いて吸引ろ過し、ろ液を水、炭酸水素ナトリウム、水の順序で洗浄した。洗浄した有機層を硫酸マグネシウムで脱水乾燥させ、硫酸マグネシウムをろ過し、エバポレーターにて溶媒を留去した後、減圧乾燥し9.180g(収率86%)の桃色結晶の化学式(23)の化合物を得た。
この化合物について、質量分析を行い(EI+,70eV)、相対強度m/z=518〔M,100%〕と、m/z=520〔(M+2),約30%)を確認し、同定した。
An eggplant flask and a stirrer are prepared, and a reactor is prepared in the draft.
In a recovery flask, 11.0 g (20.56 mmol) of 4,5-Bis (dodecathio) -1,3-dithiole-2-thione (DTTC12) synthesized in Example 1 and 1.638 g of mercury acetate (II) (5 1400 mmol), chloroform (50 ml) and acetic acid (65 ml) were added, a stirrer chip was added, and the mixture was stirred for 30 minutes at room temperature in a nitrogen atmosphere to carry out the reaction.
After completion of the reaction, the solution was suction filtered using celite, and the filtrate was washed with water, sodium bicarbonate and water in this order. The washed organic layer was dehydrated and dried with magnesium sulfate, the magnesium sulfate was filtered off, the solvent was distilled off with an evaporator, and then dried under reduced pressure. 9.180 g (yield 86%) of the compound of chemical formula (23) of pink crystals Got.
The compound was subjected to mass spectrometry (EI +, 70 eV), and the relative intensity m / z = 518 [M + , 100%] and m / z = 520 [(M + 2) + , about 30%) were confirmed and identified. did.

(実施例4、5:潤滑油組成物)
上記実施例1、3に記載の化合物を用いて実施例4、5、及び比較例1、2の潤滑油組成物を調製するために、下記の組成材料を用意した。
1 基油:GIII基油;API(American Petroleum Institute,米国石油協会)基油カテゴリーでGIII(グループ3)の基油(特性:100℃における動粘度 8.152mm/s、 40℃における動粘度 47.92mm/s、 粘度指数 144である。)
2 添加剤
2−1 Ca系金属清浄剤:Infineum M7101(インフィニアム社製); 代表値として塩基価168mgKOH/g、硫酸灰分20%であるCaサリシレート
2−2 無灰系分散剤:OLOA5093(オロナイト社製); 代表値として塩基価24mgKOH/g、ビスタイプ、窒素量:1.2%であるもの。
2−3 フェノール系酸化防止剤:IrganoxL135(チバ・スペシャルティ・ケミカルズ社製);ベンゼンプロパン酸3,5−ビス(1,1−ジメチル−エチル)−4−ヒドロキシ−C7〜C9側鎖アルキルエステル
2−4 ZnDTP(セカンダリータイプ):Lubrizol Lz 1371(ルーブリゾール社製)
(Examples 4 and 5: lubricating oil composition)
In order to prepare the lubricating oil compositions of Examples 4 and 5 and Comparative Examples 1 and 2 using the compounds described in Examples 1 and 3, the following composition materials were prepared.
1 Base oil: GIII base oil; API (American Petroleum Institute, American Petroleum Institute) base oil category, GIII (Group 3) base oil (characteristic: kinematic viscosity at 100 ° C., 8.152 mm 2 / s, kinematic viscosity at 40 ° C. 47.92 mm 2 / s, viscosity index 144.)
2 Additives 2-1 Ca-based metal detergent: Infineum M7101 (manufactured by Infinium); Ca salicylate having a base number of 168 mg KOH / g and sulfated ash content of 20% as representative values 2-2 Ashless dispersant: OLOA 5093 (Olonite) (Manufactured by Kogyo Co., Ltd.); As a representative value, a base number of 24 mg KOH / g, a bis type, a nitrogen amount: 1.2%
2-3 Phenol-based antioxidant: Irganox L135 (manufactured by Ciba Specialty Chemicals); benzenepropanoic acid 3,5-bis (1,1-dimethyl-ethyl) -4-hydroxy-C7-C9 side chain alkyl ester 2 -4 ZnDTP (secondary type): Lubrizol Lz 1371 (manufactured by Lubrizol)

実施例4、5及び比較例1、2のエンジン用潤滑油組成物の配合組成は、表1に示すとおりである。
また、各実施例4、5及び比較例1、2について、下記の性状値を同じく表1に表示した。
3−1 窒素分量(計算値)
3−2 リン分量(計算値)
3−3 硫酸灰分(計算値)
3−4 動粘度(40℃)
3−5 動粘度(100℃)
3−6 粘度指数(VI)
The blending compositions of the engine lubricating oil compositions of Examples 4 and 5 and Comparative Examples 1 and 2 are as shown in Table 1.
The following property values are also shown in Table 1 for Examples 4 and 5 and Comparative Examples 1 and 2.
3-1 Nitrogen content (calculated value)
3-2 Phosphorus content (calculated value)
3-3 Sulfated ash (calculated value)
3-4 Kinematic viscosity (40 ° C)
3-5 Kinematic viscosity (100 ° C)
3-6 Viscosity index (VI)

(試験1)
エンジン用潤滑油組成物の性能を評価するために、シェル4球試験をASTM D4172に準拠して下記の条件で行った。
(4−1)荷 重:392N(40kgf)
(4−2)温 度:75℃
(4−3)回転数 :1800rpm
(4−4)試験時間:30分
(Test 1)
In order to evaluate the performance of the lubricating oil composition for engines, a shell 4-ball test was conducted under the following conditions in accordance with ASTM D4172.
(4-1) Load: 392N (40kgf)
(4-2) Temperature: 75 ° C
(4-3) Rotation speed: 1800rpm
(4-4) Test time: 30 minutes

(試験2)
また、ホットチューブ試験(HTT)をJPI 5S−55−99(石油学会法)に準拠して下記の条件で行った。
(5−1)温 度 :280℃
(5−2)試験時間 :16時間
(5−3)空気送り量:10ml/min
(5−3)油送り量 :0.3ml/hr
(Test 2)
Further, a hot tube test (HTT) was performed under the following conditions in accordance with JPI 5S-55-99 (The Petroleum Institute Act).
(5-1) Temperature: 280 ° C
(5-2) Test time: 16 hours
(5-3) Air feed rate: 10 ml / min
(5-3) Oil feed rate: 0.3 ml / hr

(結果)
上記試験1、2の結果を表1に示す。
(評価)
実施例4は、比較例1に比べてシェル4球試験から判るように耐摩耗性の改善が図られており、HTTにおいては比較例の評点5.0から8.0まで向上(JASO M355:2005規格では、合格点は7.0以上とされている)しており、清浄性が向上し、酸化劣化物の生成が抑制されたことが判る。
また、実施例5は、比較例1に比べてシェル4球試験から判るように耐摩耗性の改善が図られており、HTTにおいても評点8.5と実施例4と同等以上の良好な結果を示し、清浄性に優れていることが判る。
また、比較例2として示す市販ZnDTP(ジンクジチオフォスフェート)を使用したものでは、亜鉛金属分があるため硫酸灰分が増加しており、またリン(P)分も混入している。
実施例4、5は比較例2に比べてHTTの結果が優れていることから、酸化劣化物の生成が抑制されたことにより清浄性が向上したといえる。また、耐摩耗性は、シェル4球試験から判るように、実施例4は比較例2と同等の性能を有しており、実施例5は比較例2には劣るものの、比較例1より優れており、ZnDTPの一部に代替使用することにより、組成中のリン分低減に寄与することが可能である。
従って、両実施例のものはZnDTPを使用した比較例2に替えて用いることができるもので、しかも清浄性が良好で、金属分、リン分を含有しない、環境面にも配慮したものであることが示されている。
(result)
The results of tests 1 and 2 are shown in Table 1.
(Evaluation)
In Example 4, the wear resistance is improved as can be seen from the shell 4-ball test as compared with Comparative Example 1, and the HTT is improved from 5.0 to 8.0 in Comparative Example (JASO M355: According to the 2005 standard, the passing score is 7.0 or higher), which indicates that the cleanliness is improved and the generation of oxidative degradation products is suppressed.
In addition, as compared with Comparative Example 1, Example 5 is improved in wear resistance as can be seen from the shell four-ball test, and HTT has a score of 8.5, which is equal to or better than Example 4. It can be seen that it is excellent in cleanliness.
Moreover, in the thing using the commercially available ZnDTP (zinc dithiophosphate) shown as the comparative example 2, since there is a zinc metal content, the sulfated ash content is increased, and the phosphorus (P) content is also mixed.
In Examples 4 and 5, the results of HTT are superior to those of Comparative Example 2. Therefore, it can be said that the cleanliness is improved by suppressing the generation of oxidative degradation products. Further, as can be seen from the shell 4-ball test, the wear resistance of Example 4 is equivalent to that of Comparative Example 2, and Example 5 is inferior to Comparative Example 2 but superior to Comparative Example 1. Therefore, it is possible to contribute to the reduction of the phosphorus content in the composition by substituting it for a part of ZnDTP.
Accordingly, both examples can be used in place of Comparative Example 2 using ZnDTP, have good cleanliness, do not contain metal and phosphorus, and are environmentally friendly. It has been shown.

Figure 2008222639
Figure 2008222639

Claims (7)

下記の一般式(1)で示される化合物。
Figure 2008222639
(式1中、R、Rは、水素及び/または炭素数1〜30の直鎖または分岐鎖の飽和または不飽和炭化水素又はこれらの一部をヘテロ原子で置換した置換を含む置換炭化水素である。R、Rはそれぞれ同一でも異なっていてもよく、R及びRの炭素数の合計が40以下であり、Xは酸素または硫黄である。)
A compound represented by the following general formula (1).
Figure 2008222639
(In Formula 1, R 1 and R 2 are substituted carbons including hydrogen and / or a linear or branched saturated or unsaturated hydrocarbon having 1 to 30 carbon atoms or a substitution in which a part thereof is substituted with a heteroatom. R 1 and R 2 may be the same or different, and the total number of carbon atoms of R 1 and R 2 is 40 or less, and X is oxygen or sulfur.)
上記一般式(1)のR、Rの置換炭化水素中のヘテロ原子が酸素、硫黄、窒素のいずれかまたはこれらの組み合わせである請求項1に記載の化合物。 The compound according to claim 1, wherein the hetero atom in the substituted hydrocarbon of R 1 and R 2 in the general formula (1) is any one of oxygen, sulfur, nitrogen, or a combination thereof. 上記一般式(1)のR、Rの置換炭化水素中のヘテロ原子がアルコール、ケトン、エステル、エーテル、ニトリル、アミン、スルフィドリル、チオケトン、チオエステル、チオエーテル、ポリエーテル又はアミドの形をとっている請求項2に記載の化合物。 Heteroatoms in the substituted hydrocarbons of R 1 and R 2 in the general formula (1) are in the form of alcohol, ketone, ester, ether, nitrile, amine, sulfhydryl, thioketone, thioester, thioether, polyether or amide. The compound according to claim 2. 請求項1〜3のいずれかに記載の化合物を含有する潤滑油組成物。   The lubricating oil composition containing the compound in any one of Claims 1-3. 請求項1に記載の化合物の含有量が0.1質量%以上である請求項4に記載の潤滑油組成物。   The lubricating oil composition according to claim 4, wherein the content of the compound according to claim 1 is 0.1% by mass or more. 請求項1に記載の化合物が含まれる潤滑油組成物の基油が、鉱油、ポリアルファオレフィン、エステル、エーテル、フィッシャートロプッシュ合成油も含める合成油の単独物または混合物である請求項4または5に記載の潤滑油組成物。   The base oil of the lubricating oil composition containing the compound according to claim 1 is a synthetic oil alone or a mixture including mineral oil, polyalphaolefin, ester, ether, and Fischer-Tropsch synthetic oil. The lubricating oil composition described in 1. 潤滑油組成物が内燃機関油、ギヤ油、機械油、油圧作動油またはグリースの形態である請求項4〜6のいずれかに記載の潤滑油組成物。   The lubricating oil composition according to any one of claims 4 to 6, wherein the lubricating oil composition is in the form of internal combustion engine oil, gear oil, machine oil, hydraulic fluid or grease.
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