JP2000204386A - Base oil composition for lubricating oil and its production - Google Patents
Base oil composition for lubricating oil and its productionInfo
- Publication number
- JP2000204386A JP2000204386A JP11316355A JP31635599A JP2000204386A JP 2000204386 A JP2000204386 A JP 2000204386A JP 11316355 A JP11316355 A JP 11316355A JP 31635599 A JP31635599 A JP 31635599A JP 2000204386 A JP2000204386 A JP 2000204386A
- Authority
- JP
- Japan
- Prior art keywords
- base oil
- lubricating base
- ring
- flash point
- bicyclo
- 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
Links
Landscapes
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、潤滑油基油組成物
及び引火点と低温流動性が改良された潤滑油基油組成物
の製造方法に関し、より詳しくは、トラクションドライ
ブ用流体として有用な、引火点と低温流動性が改良され
た潤滑油基油組成物及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating base oil composition and a method for producing a lubricating base oil composition having improved flash point and low-temperature fluidity, and more particularly, useful as a traction drive fluid. The present invention relates to a lubricating base oil composition having improved flash point and low-temperature fluidity, and a method for producing the same.
【０００２】[0002]
【従来の技術】自動車用トラクション式ＣＶＴ（無段変
速機）に使用するトラクションオイルの基油は、高温で
もトラクション係数が高いこと及び低温でも粘度が低い
ことの相反する性能を満足していることが必要であると
同時に、実用上の安全のために引火点も１５０℃以上で
あることが好ましい。しかし、高温でのトラクション係
数が高い合成ナフテン系化合物は低温流動性が悪く、そ
こで高温トラクション係数を多少犠牲にして低温流動性
を優先させると分子量を小さくせねばならず、その結果
引火点が低くなって実用性に欠けるという問題があっ
た。つまり、一般に高温でのトラクショクション係数が
高い合成ナフテン系化合物は、同じ分子量で比較する
と、パラフィン系化合物より粘度が高いため、低温流動
性をも満足させるためには分子量を低めにせざるを得な
い。しかし、分子量が低くなると基油の揮発性が高くな
って、引火点が低くなる。一般に、自動車用潤滑油の引
火点は、実用上１５０℃以上を保持することが望まし
い。したがって、自動車用トラクションオイルとして用
いられるナフテン系合成潤滑油の引火点を、高温トラク
ション係数を損なうことなく改良し、高温トラクショ
ン係数低温流動性引火点の全て満足させることが望
まれていた。2. Description of the Related Art A base oil of traction oil used in a traction type CVT (Continuously Variable Transmission) for automobiles satisfies the contradictory performances of high traction coefficient even at high temperature and low viscosity at low temperature. Is necessary, and the flash point is preferably 150 ° C. or higher for practical safety. However, synthetic naphthenic compounds with a high traction coefficient at high temperatures have poor low-temperature fluidity.Therefore, if the high-temperature traction coefficient is somewhat sacrificed and low-temperature fluidity is prioritized, the molecular weight must be reduced, resulting in a low flash point. There was a problem that it lacked practicality. In other words, in general, a synthetic naphthene-based compound having a high traction coefficient at a high temperature has a higher viscosity than a paraffin-based compound when compared at the same molecular weight. Therefore, in order to satisfy the low-temperature fluidity, the molecular weight must be lowered. Absent. However, the lower the molecular weight, the higher the volatility of the base oil and the lower the flash point. Generally, it is desirable that the flash point of automotive lubricating oil be maintained at 150 ° C. or higher for practical use. Accordingly, it has been desired to improve the flash point of a naphthenic synthetic lubricating oil used as a traction oil for automobiles without impairing the high-temperature traction coefficient and satisfy all of the high-temperature traction coefficient and the low-temperature fluidity flash point.
【０００３】従来より、ナフテン系合成潤滑油を改良す
るために、ポリα−オレフィンを配合する試みがなされ
ている（特開平１−１４９８９８号公報，特開平３−１
０３４９５号公報）。しかしながら、ポリα−オレフィ
ンの粘度が高すぎるため、低温流動性を良くするために
は配合量が多くなり、結果として高温トラクション係数
が大きく低下し、また、ナフテン系合成潤滑油と揮発性
（沸点）が大きく異なるため、使用中の軽質成分（合成
ナフテン系化合物）の揮発によりポリα−オレフィンが
リッチな組成に変化して高温トラクション係数の大幅な
低下によるＣＶＴスリップを起こすなどの欠点を有す
る。Heretofore, attempts have been made to blend a poly-α-olefin in order to improve a naphthenic synthetic lubricating oil (JP-A-1-1499898, JP-A-3-3-198).
03495). However, since the viscosity of the poly-α-olefin is too high, the blending amount is increased in order to improve the low-temperature fluidity. As a result, the high-temperature traction coefficient is significantly reduced, and the naphthenic synthetic lubricating oil and the volatile (boiling point) ), The light components (synthetic naphthenic compounds) during use have the drawback that the poly-α-olefin changes to a rich composition due to volatilization and causes a CVT slip due to a significant decrease in the high temperature traction coefficient.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記観点か
らなされたもので、高温トラクション係数を損なうこと
なく、引火点と低温流動性が改良された潤滑油基油組成
物及びその製造方法を提供することを目的とするもので
ある。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above, and provides a lubricating base oil composition having an improved flash point and low-temperature fluidity without impairing the high-temperature traction coefficient and a method for producing the same. It is intended to provide.
【０００５】[0005]
【課題を解決するための手段】本発明者らは鋭意研究を
重ねた結果、ナフテン系合成潤滑油基油に、特定のパラ
フィン系合成潤滑油基油を少量配合することにより、上
記発明の目的を効果的に達成しうることを見出し本発明
を完成したものである。Means for Solving the Problems As a result of intensive studies, the present inventors have found that the object of the present invention can be attained by blending a small amount of a specific paraffinic synthetic lubricating base oil with a naphthenic synthetic lubricating base oil. It has been found that the present invention can be effectively achieved, and the present invention has been completed.
【０００６】すなわち、本発明の要旨は下記の通りであ
る。 １．（ａ）１８０℃以下の引火点を有するナフテン系合
成潤滑油基油８０〜９８重量％及び（ｂ）該ナフテン系
合成潤滑油基油より高い引火点を有するパラフィン系合
成潤滑油基油２〜２０重量％からなる潤滑油基油組成
物。 ２．（ａ）成分のナフテン系合成潤滑油基油が、シクロ
ヘキサン環、ビシクロヘプタン環及びビシクロオクタン
環より選ばれる環を有する化合物である上記１記載の潤
滑油基油組成物。 ３．（ａ）成分のナフテン系合成潤滑油基油が、シクロ
ヘキサン環、ビシクロ〔２．２．１〕ヘプタン環、ビシ
クロ〔３．２．１〕オクタン環、ビシクロ〔２．２．
２〕オクタン環及びビシクロ〔３．３．０〕オクタン環
から選ばれる環を少なくとも２個有する化合物である上
記１又は２に記載の潤滑油基油組成物。 ４．（ｂ）成分のパラフィン系合成潤滑油基油が、ポリ
α−オレフィン、α−オレフィンコポリマーである上記
１〜３のいずれかに記載の潤滑油基油組成物。 ５．（ｂ）成分のパラフィン系合成潤滑油基油が、全炭
素数１６〜４０を有するものである上記１〜４のいずれ
かに記載の潤滑油基油組成物。 ６．（ｂ）成分のパラフィン系合成潤滑油基油が、全炭
素数１６〜２６を有するものである上記１〜５のいずれ
かに記載の潤滑油基油組成物。 ７．ポリα−オレフィンが、デセン−１の二量体の水素
化物である上記４〜６のいずれかに記載の潤滑油基油組
成物。 ８．潤滑油基油組成物が、トラクションドライブ用流体
の基油組成物である上記１〜７のいずれかに記載の潤滑
油基油組成物。 ９．（ａ）１８０℃以下の引火点を有するナフテン系合
成潤滑油基油８０〜９８重量％に、（ｂ）該ナフテン系
合成潤滑油基油より高い引火点を有するパラフィン系合
成潤滑油基油２〜２０重量％を配合することを特徴とす
る引火点と低温流動性が改良された潤滑油基油組成物の
製造方法。That is, the gist of the present invention is as follows. 1. (A) 80 to 98% by weight of a naphthenic synthetic lubricating base oil having a flash point of 180 ° C. or less and (b) paraffinic synthetic lubricating base oil having a flash point higher than that of the naphthenic synthetic lubricating base oil. A lubricating base oil composition comprising 20% by weight. 2. 2. The lubricating base oil composition according to the above 1, wherein the naphthenic synthetic lubricating base oil of the component (a) is a compound having a ring selected from a cyclohexane ring, a bicycloheptane ring and a bicyclooctane ring. 3. Component (a) is a naphthenic synthetic lubricating base oil comprising a cyclohexane ring, a bicyclo [2.2.1] heptane ring, a bicyclo [3.2.1] octane ring, and a bicyclo [2.2.
2] The lubricating base oil composition according to the above 1 or 2, which is a compound having at least two rings selected from an octane ring and a bicyclo [3.3.0] octane ring. 4. The lubricating base oil composition according to any one of the above items 1 to 3, wherein the paraffin-based synthetic lubricating base oil of the component (b) is a poly-α-olefin or α-olefin copolymer. 5. The lubricating base oil composition according to any one of the above items 1 to 4, wherein the paraffinic synthetic lubricating base oil as the component (b) has a total carbon number of 16 to 40. 6. (B) The lubricating base oil composition according to any one of (1) to (5) above, wherein the paraffinic synthetic lubricating base oil of component has 16 to 26 carbon atoms in total. 7. 7. The lubricating base oil composition according to any one of the above items 4 to 6, wherein the poly-α-olefin is a hydrogenated dimer of decene-1. 8. 8. The lubricating base oil composition according to any one of the above 1 to 7, wherein the lubricating base oil composition is a traction drive fluid base oil composition. 9. (A) 80 to 98% by weight of a naphthenic synthetic lubricating base oil having a flash point of 180 ° C. or less; (b) paraffinic synthetic lubricating base oil 2 having a higher flash point than the naphthenic synthetic lubricating base oil 2 A method for producing a lubricating base oil composition having an improved flash point and low-temperature fluidity, characterized in that the composition comprises from 20 to 20% by weight.
【０００７】[0007]
【発明の実施の形態】以下に、本発明を詳細に説明す
る。先ず、本願の第一発明の（ａ）成分の１８０℃以下
の引火点を有するナフテン系合成潤滑油基油としては、
ナフテン系合成潤滑油基油の中で引火点が１８０℃以下
のものであれば特に限定されないが、ナフテン系合成潤
滑油基油としてシクロヘキサン環、ビシクロヘプタン環
及びビシクロオクタン環から選ばれる環を有する化合物
が好ましい。なかでも、シクロヘキサン環、ビシクロ
〔２．２．１〕ヘプタン環、ビシクロ〔３．２．１〕オ
クタン環、ビシクロ〔２．２．２〕オクタン環及びビシ
クロ〔３．３．０〕オクタン環から選ばれる環を少なく
とも２個有する化合物が好ましい。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. First, as the naphthenic synthetic lubricating base oil having a flash point of 180 ° C. or lower of the component (a) of the first invention of the present application,
The naphthenic synthetic lubricating base oil is not particularly limited as long as it has a flash point of 180 ° C. or lower, but has a ring selected from a cyclohexane ring, a bicycloheptane ring and a bicyclooctane ring as the naphthenic synthetic lubricating base oil. Compounds are preferred. Among them, a cyclohexane ring, a bicyclo [2.2.1] heptane ring, a bicyclo [3.2.1] octane ring, a bicyclo [2.2.2] octane ring and a bicyclo [3.3.0] octane ring Compounds having at least two selected rings are preferred.
【０００８】具体的には、ビシクロ〔２．２．１〕ヘプ
タン環化合物、ビシクロ〔３．２．１〕オクタン環化合
物、ビシクロ〔３．３．０〕オクタン環化合物、ビシク
ロ〔２．２．２〕オクタン環化合物から選ばれる少なく
とも一種の脂環化合物の二量体の水素化物、及び２，４
−ジシクロヘキシル−２−メチルペンタン、２，４−ジ
シクロヘキシルペンタン、２，４−ジシクロヘキシル−
２−メチルブタン、１−デカヒドロナフチル−１−シク
ロヘキシルエタンなどのシクロヘキサン環化合物から好
ましく選択することができる。More specifically, bicyclo [2.2.1] heptane ring compound, bicyclo [3.2.1] octane ring compound, bicyclo [3.3.0] octane ring compound, bicyclo [2.2. 2] dimer hydride of at least one alicyclic compound selected from octane ring compounds, and 2,4
-Dicyclohexyl-2-methylpentane, 2,4-dicyclohexylpentane, 2,4-dicyclohexyl-
It can be preferably selected from cyclohexane ring compounds such as 2-methylbutane and 1-decahydronaphthyl-1-cyclohexylethane.
【０００９】上記脂環化合物の二量体の水素化物の好ま
しい製造方法としては、例えば、アルキル基が置換して
もよい下記オレフィンを二量化、水素化、蒸留の順に処
理を行えばよい。As a preferred method for producing the dimer hydride of the alicyclic compound, for example, the following olefin which may be substituted by an alkyl group may be treated in the order of dimerization, hydrogenation and distillation.
【００１０】上記の原料のメチル基，エチル基あるいは
プロピル基等のアルキル基が置換してもよいオレフィン
としては、例えば、ビシクロ〔２．２．１〕ヘプト−２
−エン；ビニル置換あるいはイソプロペニル置換ビシク
ロ〔２．２．１〕ヘプト−２−エン等のアルケニル置換
ビシクロ〔２．２．１〕ヘプト−２−エン；メチレン置
換，エチリデン置換あるいはイソプロピリデン置換ビシ
クロ〔２．２．１〕ヘプト−２−エン等のアルキリデン
置換ビシクロ〔２．２．１〕ヘプト−２−エン；ビニル
置換あるいはイソプロペニル置換ビシクロ〔２．２．
１〕ヘプタン等のアルケニル置換ビシクロ〔２．２．
１〕ヘプタン；メチレン置換，エチリデン置換あるいは
イソプロピリデン置換ビシクロ〔２．２．１〕ヘプタン
等のアルキリデン置換ビシクロ〔２．２．１〕ヘプタ
ン；ビシクロ〔３．２．１〕オクテン；ビニル置換ある
いはイソプロペニル置換ビシクロ〔３．２．１〕オクテ
ン等のアルケニル置換ビシクロ〔３．２．１〕オクテ
ン；メチレン置換，エチリデン置換あるいはイソプロピ
リデン置換ビシクロ〔３．２．１〕オクテン等のアルキ
リデン置換ビシクロ〔３．２．１〕オクテン；ビニル置
換あるいはイソプロペニル置換ビシクロ〔３．２．１〕
オクタン等のアルケニル置換ビシクロ〔３．２．１〕オ
クタン；メチレン置換，エチリデン置換あるいはイソプ
ロピリデン置換ビシクロ〔３．２．１〕オクタン等のア
ルキリデン置換ビシクロ〔３．２．１〕オクタン；ビシ
クロ〔３．３．０〕オクテン；ビニル置換あるいはイソ
プロペニル置換ビシクロ〔３．３．０〕オクテン等のア
ルケニル置換ビシクロ〔３．３．０〕オクテン；メチレ
ン置換，エチリデン置換あるいはイソプロピリデン置換
ビシクロ〔３．３．０〕オクテン等のアルキリデン置換
ビシクロ〔３．３．０〕オクテン；ビニル置換あるいは
イソプロペニル置換ビシクロ〔３．３．０〕オクタン等
のアルケニル置換ビシクロ〔３．３．０〕オクタン；メ
チレン置換，エチリデン置換あるいはイソプロピリデン
置換ビシクロ〔３．３．０〕オクタン等のアルキリデン
置換ビシクロ〔３．３．０〕オクタン；ビシクロ〔２．
２．２〕オクテン；ビニル置換あるいはイソプロペニル
置換ビシクロ〔２．２．２〕オクテン等のアルケニル置
換ビシクロ〔２．２．２〕オクテン；メチレン置換，エ
チリデン置換あるいはイソプロピリデン置換ビシクロ
〔２．２．２〕オクテン等のアルキリデン置換ビシクロ
〔２．２．２〕オクテン；ビニル置換あるいはイソプロ
ペニル置換ビシクロ〔２．２．２〕オクタン等のアルケ
ニル置換ビシクロ〔２．２．２〕オクタン；メチレン置
換，エチリデン置換あるいはイソプロピリデン置換ビシ
クロ〔２．２．２〕オクタン等のアルキリデン置換ビシ
クロ〔２．２．２〕オクタンなどを挙げることができ
る。Examples of the olefin which may be substituted with an alkyl group such as a methyl group, an ethyl group or a propyl group in the above-mentioned raw materials include, for example, bicyclo [2.2.1] hept-2
-Ene; alkenyl-substituted bicyclo [2.2.1] hept-2-ene such as vinyl-substituted or isopropenyl-substituted bicyclo [2.2.1] hept-2-ene; methylene-substituted, ethylidene-substituted or isopropylidene-substituted bicyclo [2.2.1] alkylidene-substituted bicyclo such as hept-2-ene [2.2.1] hept-2-ene; vinyl-substituted or isopropenyl-substituted bicyclo [2.2.
1] Alkenyl-substituted bicyclo such as heptane [2.2.
1] heptane; alkylidene-substituted bicyclo [2.2.1] heptane such as methylene-substituted, ethylidene-substituted or isopropylidene-substituted bicyclo [2.2.1] heptane; bicyclo [3.2.1] octene; vinyl-substituted or iso- Alkenyl-substituted bicyclo [3.2.1] octene such as propenyl-substituted bicyclo [3.2.1] octene; alkylidene-substituted bicyclo [3] such as methylene-substituted, ethylidene-substituted or isopropylidene-substituted bicyclo [3.2.1] octene; 2.2.1] octene; vinyl-substituted or isopropenyl-substituted bicyclo [3.2.1]
Alkenyl-substituted bicyclo [3.2.1] octane such as octane; alkylidene-substituted bicyclo [3.2.1] octane such as methylene-substituted, ethylidene-substituted or isopropylidene-substituted bicyclo [3.2.1] octane; bicyclo [3 3.3.0] octene; alkenyl-substituted bicyclo [3.3.0] octene such as vinyl-substituted or isopropenyl-substituted bicyclo [3.3.0] octene; methylene-substituted, ethylidene-substituted or isopropylidene-substituted bicyclo [3.3] 0.0] octene and the like; alkylidene-substituted bicyclo [3.3.0] octene; vinyl-substituted or isopropenyl-substituted bicyclo [3.3.0] octane and the like alkenyl-substituted bicyclo [3.3.0] octane; methylene-substituted Ethylidene-substituted or isopropylidene-substituted bicyclo [3 3.0] alkylidene-substituted bicyclo [3.3.0] octane octane; bicyclo [2.
2.2] octene; alkenyl-substituted bicyclo [2.2.2] octene such as vinyl-substituted or isopropenyl-substituted bicyclo [2.2.2] octene; methylene-substituted, ethylidene-substituted or isopropylidene-substituted bicyclo [2.2. 2] alkylidene-substituted bicyclo [2.2.2] octene such as octene; alkenyl-substituted bicyclo [2.2.2] octane such as vinyl-substituted or isopropenyl-substituted bicyclo [2.2.2] octane; methylene-substituted, ethylidene Alkylidene-substituted bicyclo [2.2.2] octane such as substituted or isopropylidene-substituted bicyclo [2.2.2] octane and the like can be mentioned.
【００１１】なかでも、ビシクロ〔２．２．１〕ヘプタ
ン環化合物の二量体の水素化物が特に好ましく、対応す
る原料オレフィンとして、具体的には、例えば、ビシク
ロ〔２．２．１〕ヘプト−２−エン；２−メチレンビシ
クロ〔２．２．１〕ヘプタン；２−メチルビシクロ
〔２．２．１〕ヘプト−２−エン；２−メチレン−３−
メチルビシクロ〔２．２．１〕ヘプタン；３−メチレン
−２−メチルビシクロ〔２．２．１〕ヘプタン；２，３
−ジメチルビシクロ〔２．２．１〕ヘプト−２−エン；
２−メチレン−７−メチルビシクロ〔２．２．１〕ヘプ
タン；３−メチレン−７−メチルビシクロ〔２．２．
１〕ヘプタン；２，７−ジメチルビシクロ〔２．２．
１〕ヘプト−２−エン；２−メチレン−５−メチルビシ
クロ〔２．２．１〕ヘプタン；３−メチレン−５−メチ
ルビシクロ〔２．２．１〕ヘプタン；２，５−ジメチル
ビシクロ〔２．２．１〕ヘプト−２−エン；２−メチレ
ン−６−メチルビシクロ〔２．２．１〕ヘプタン；３−
メチレン−６−メチルビシクロ〔２．２．１〕ヘプタ
ン；２，６−ジメチルビシクロ〔２．２．１〕ヘプト−
２−エン；２−メチレン−１−メチルビシクロ〔２．
２．１〕ヘプタン；３−メチレン−１−メチルビシクロ
〔２．２．１〕ヘプタン；１，２−ジメチルビシクロ
〔２．２．１〕ヘプト−２−エン；２−メチレン−４−
メチルビシクロ〔２．２．１〕ヘプタン；３−メチレン
−４−メチルビシクロ〔２．２．１〕ヘプタン；２，４
−ジメチルビシクロ〔２．２．１〕ヘプト−２−エン；
２−メチレン−３，７−ジメチルビシクロ〔２．２．
１〕ヘプタン；３−メチレン−２，７−ジメチルビシク
ロ〔２．２．１〕ヘプタン；２，３，７−トリメチルビ
シクロ〔２．２．１〕ヘプト−２−エン；２−メチレン
−３，６−ジメチルビシクロ〔２．２．１〕ヘプタン；
３−メチレン−２，６−ジメチルビシクロ〔２．２．
１〕ヘプタン；２−メチレン−３，３−ジメチルビシク
ロ〔２．２．１〕ヘプタン；３−メチレン−２，２−ジ
メチルビシクロ〔２．２．１〕ヘプタン；２，３，６−
トリメチルビシクロ〔２．２．１〕ヘプト−２−エン；
２−メチレン−３−エチルビシクロ〔２．２．１〕ヘプ
タン；３−メチレン−２−エチルビシクロ〔２．２．
１〕ヘプタン；２−メチル−３−エチルビシクロ〔２．
２．１〕ヘプト−２−エンなどを挙げることができる。Among them, a dimer hydride of a bicyclo [2.2.1] heptane ring compound is particularly preferred. As the corresponding starting olefin, specifically, for example, bicyclo [2.2.1] heptane -2-ene; 2-methylenebicyclo [2.2.1] heptane; 2-methylbicyclo [2.2.1] hept-2-ene; 2-methylene-3-
Methylbicyclo [2.2.1] heptane; 3-methylene-2-methylbicyclo [2.2.1] heptane; 2,3
-Dimethylbicyclo [2.2.1] hept-2-ene;
2-methylene-7-methylbicyclo [2.2.1] heptane; 3-methylene-7-methylbicyclo [2.2.
1] heptane; 2,7-dimethylbicyclo [2.2.
1] Hept-2-ene; 2-methylene-5-methylbicyclo [2.2.1] heptane; 3-methylene-5-methylbicyclo [2.2.1] heptane; 2,5-dimethylbicyclo [2 2.2.1] hept-2-ene; 2-methylene-6-methylbicyclo [2.2.1] heptane; 3-
Methylene-6-methylbicyclo [2.2.1] heptane; 2,6-dimethylbicyclo [2.2.1] hept-
2-ene; 2-methylene-1-methylbicyclo [2.
2.1] heptane; 3-methylene-1-methylbicyclo [2.2.1] heptane; 1,2-dimethylbicyclo [2.2.1] hept-2-ene; 2-methylene-4-
Methylbicyclo [2.2.1] heptane; 3-methylene-4-methylbicyclo [2.2.1] heptane; 2,4
-Dimethylbicyclo [2.2.1] hept-2-ene;
2-methylene-3,7-dimethylbicyclo [2.2.
1] heptane; 3-methylene-2,7-dimethylbicyclo [2.2.1] heptane; 2,3,7-trimethylbicyclo [2.2.1] hept-2-ene; 2-methylene-3, 6-dimethylbicyclo [2.2.1] heptane;
3-methylene-2,6-dimethylbicyclo [2.2.
1] heptane; 2-methylene-3,3-dimethylbicyclo [2.2.1] heptane; 3-methylene-2,2-dimethylbicyclo [2.2.1] heptane; 2,3,6-
Trimethylbicyclo [2.2.1] hept-2-ene;
2-methylene-3-ethylbicyclo [2.2.1] heptane; 3-methylene-2-ethylbicyclo [2.2.
1] heptane; 2-methyl-3-ethylbicyclo [2.
2.1] Hept-2-ene and the like.
【００１２】なお、前記の二量化とは、同種のオレフィ
ンの二量化のみならず、異種の複数のオレフィンの共二
量化をも意味する。上述のオレフィンの二量化は、通常
触媒の存在下で必要に応じて溶媒を添加して行う。この
二量化に用いる触媒としては、通常、酸性触媒が使用さ
れる。具体的には、活性白土，ゼオライト，モンモリナ
イト，イオン交換樹脂等の固体酸、フッ化水素酸、ポリ
リン酸等の鉱酸類、トリフリック酸等の有機酸、塩化ア
ルミニウム，塩化第二鉄，塩化第二スズ，三フッ化ホウ
素，三フッ化ホウ素錯体，三臭化ホウ素，臭化アルミニ
ウム，塩化ガリウム，臭化ガリウム等のルイス酸、トリ
エチルアルミニウム，塩化ジエチルアルミニウム，二塩
化エチルアルミニウム等の有機アルミニウム化合物など
を挙げることができる。これらの触媒の使用量は、特に
制限されないが、通常は原料オレフィンに対して０．１
〜１００重量％の範囲である。The above-mentioned dimerization means not only dimerization of the same kind of olefin but also co-dimerization of a plurality of different kinds of olefins. The above-mentioned olefin dimerization is usually carried out in the presence of a catalyst, if necessary, by adding a solvent. As a catalyst used for this dimerization, an acidic catalyst is usually used. Specifically, solid acids such as activated clay, zeolite, montmorillonite and ion exchange resin, mineral acids such as hydrofluoric acid and polyphosphoric acid, organic acids such as triflic acid, aluminum chloride, ferric chloride, and ferric chloride Lewis acids such as tin, boron trifluoride, boron trifluoride complex, boron tribromide, aluminum bromide, gallium chloride and gallium bromide, and organic aluminum compounds such as triethylaluminum, diethylaluminum chloride and ethylaluminum dichloride Can be mentioned. Although the amount of these catalysts is not particularly limited, it is usually 0.1
-100% by weight.
【００１３】この二量化にあたっては、溶媒は必ずしも
必要としないが、反応時の原料オレフィンや触媒の取り
扱い上あるいは反応の進行を調節する上で用いることも
できる。このような溶媒としては、各種ペンタン，各種
ヘキサン，各種オクタン，各種ノナン，各種デカン等の
飽和炭化水素、シクロペンタン，シクロヘキサン，メチ
ルシクロサン，デカリン等の脂環式炭化水素、ジエチル
エーテル，テトラヒドロフラン等のエーテル化合物、塩
化メチレン，ジクロルエタン等のハロゲン含有化合物、
ニトロメタン，ニトロベンゼン等のニトロ化合物などを
挙げることができる。For the dimerization, a solvent is not necessarily required, but it can be used for handling the raw material olefin or catalyst during the reaction or for controlling the progress of the reaction. Examples of such a solvent include saturated hydrocarbons such as various pentanes, various hexanes, various octanes, various nonanes, and various decane; alicyclic hydrocarbons such as cyclopentane, cyclohexane, methylcyclosan, and decalin; diethyl ether; tetrahydrofuran; Ether-containing compounds, halogen-containing compounds such as methylene chloride and dichloroethane,
Examples include nitro compounds such as nitromethane and nitrobenzene.
【００１４】これら触媒等の存在下で二量化反応を行う
が、その反応温度としては、一般に−７０〜２００℃の
範囲である。その温度範囲で触媒の種類や添加剤等によ
り適当な条件が設定されるが、反応圧力は通常常圧であ
り、反応時間については、通常０．５〜１０時間であ
る。The dimerization reaction is carried out in the presence of these catalysts and the like, and the reaction temperature is generally in the range of -70 to 200 ° C. Appropriate conditions are set within the temperature range depending on the type of catalyst, additives, and the like. The reaction pressure is usually normal pressure, and the reaction time is usually 0.5 to 10 hours.
【００１５】次に、このようにして得られた原料オレフ
ィンの二量体を水素化し、目的とする二量体の水素化物
とする。なお、水素化は別々に別の原料オレフィンを使
用して二量化した二量体を適度に混合したものについて
行ってもよい。この水素化反応も、通常は触媒の存在下
行うが、その触媒としては、ニッケル，ルテニウム，パ
ラジウム，白金，ロジウム，イリジウム等の水添用触媒
を挙げることができる。この触媒の使用量は、通常上記
二量化生成物に対して０．１〜１００重量％の範囲であ
る。Next, the dimer of the raw material olefin thus obtained is hydrogenated to obtain a desired dimer hydride. In addition, hydrogenation may be performed on a mixture obtained by appropriately mixing dimers dimerized separately using different raw material olefins. This hydrogenation reaction is also usually performed in the presence of a catalyst, and examples of the catalyst include hydrogenation catalysts such as nickel, ruthenium, palladium, platinum, rhodium, and iridium. The amount of the catalyst used is usually in the range of 0.1 to 100% by weight based on the dimerization product.
【００１６】また、この水素化反応は、前記二量化反応
と同様に、無溶媒下でも進行するが、溶媒を用いること
もでき、その場合、溶媒としては、各種ペンタン，各種
ヘキサン，各種オクタン，各種ノナン，各種デカン等の
飽和炭化水素やシクロペンタン，シクロヘキサン，メチ
ルシクロサン，デカリン等の脂環式炭化水素などを挙げ
ることができる。The hydrogenation reaction proceeds in the absence of a solvent as in the case of the dimerization reaction, but a solvent can be used. In this case, various solvents such as various pentanes, various hexanes, various octanes, Examples include saturated hydrocarbons such as various nonanes and various decane, and alicyclic hydrocarbons such as cyclopentane, cyclohexane, methylcyclosan, and decalin.
【００１７】反応温度としては、通常２０〜３００℃、
反応圧力については、常圧から２００ｋｇ／ｃｍ2 Ｇの
範囲で行うことができる。反応時間は、通常１〜１０時
間である。なお、生成した水素化物は、別の工程で別の
原料オレフィンから生成した水素化物と混合して、トラ
クションドライブ用流体の基油に供してもよい。The reaction temperature is usually from 20 to 300 ° C.
Regarding the reaction pressure, the reaction can be carried out within a range from normal pressure to 200 kg / cm 2 G. The reaction time is usually 1 to 10 hours. The generated hydride may be mixed with a hydride generated from another raw material olefin in another step and supplied to a traction drive fluid base oil.
【００１８】次に、（ｂ）成分としての（ａ）成分のナ
フテン系合成潤滑油基油より高い引火点を有するパラフ
ィン系合成潤滑油基油として、ポリα−オレフィン、α
−オレフィンコポリマーなどを挙げることができる。ポ
リα−オレフィンは、炭素数２〜２０のα−オレフィン
のオリゴマーの水素化物をいい、全炭素数１６〜４０の
ものが好ましく、全炭素数１６〜２６のものがより好ま
しい。特に、１−デセンの二量体の水素化物が好まし
い。Next, as a component (b), as a paraffinic synthetic lubricating base oil having a higher flash point than the naphthenic synthetic lubricating base oil of the component (a), poly-α-olefin, α-olefin,
-Olefin copolymers and the like. The poly-α-olefin refers to a hydride of an oligomer of an α-olefin having 2 to 20 carbon atoms, preferably having 16 to 40 carbon atoms, and more preferably having 16 to 26 carbon atoms. Particularly, a dimer hydride of 1-decene is preferable.
【００１９】α−オレフィンコポリマーはエチレンと炭
素数３〜２０のα−オレフィンとのコポリマーの水素化
物をいい、全炭素数１６〜４０のものが好ましく、全炭
素数１６〜２６のものがより好ましい。なお、ポリα−
オレフィン，α−オレフィンコポリマー以外のパラフィ
ン系合成潤滑油基油も全炭素数１６〜４０のものが好ま
しく、全炭素数１６〜２６のものがより好ましい。The α-olefin copolymer is a hydride of a copolymer of ethylene and an α-olefin having 3 to 20 carbon atoms, preferably having a total carbon number of 16 to 40, more preferably having a total carbon number of 16 to 26. . In addition, poly α-
The paraffinic synthetic lubricating base oil other than the olefin and α-olefin copolymer also preferably has a total carbon number of 16 to 40, and more preferably has a total carbon number of 16 to 26.
【００２０】上記の潤滑油基油組成物は、（ａ）成分と
（ｂ）成分を配合することによって得られるが、（ａ）
成分と（ｂ）成分の割合については、（ａ）成分と
（ｂ）成分の和を基準として、（ａ）成分８０〜９８重
量％に対して、（ｂ）成分２〜２０重量％である。
（ｂ）成分の割合で説明すると、２重量％未満であると
引火点及び低温流動性の改良の効果は小さく、２０重量
％を超えると組成物の高温トラクション係数が低下す
る。好ましくは３〜１８重量％の範囲である。したがっ
て、（ａ）成分の好ましい範囲は、８２〜９７重量％と
なる。また、本発明においては、（ａ）成分と（ｂ）成
分の他に、基油として、本発明の目的を阻害しない範囲
で、適宜配合することができる。The above lubricating base oil composition can be obtained by blending the components (a) and (b).
The ratio of the component to the component (b) is, based on the sum of the components (a) and (b), 80 to 98% by weight of the component (a) and 2 to 20% by weight of the component (b). .
Explaining in terms of the proportion of the component (b), if it is less than 2% by weight, the effect of improving the flash point and low-temperature fluidity is small, and if it exceeds 20% by weight, the high-temperature traction coefficient of the composition decreases. Preferably it is in the range of 3 to 18% by weight. Therefore, a preferable range of the component (a) is 82 to 97% by weight. In the present invention, in addition to the component (a) and the component (b), a base oil can be appropriately blended as long as the object of the present invention is not impaired.
【００２１】上記の潤滑油基油組成物には、必要により
酸化防止剤，防錆剤，清浄分散剤，流動点降下剤，粘度
指数向上剤，極圧剤，耐摩耗剤，油性剤，消泡剤，腐食
防止剤などの各種添加剤を適量配合することができる。If necessary, the lubricating base oil composition may contain an antioxidant, a rust inhibitor, a detergent / dispersant, a pour point depressant, a viscosity index improver, an extreme pressure agent, an antiwear agent, an oil agent, Various additives such as a foaming agent and a corrosion inhibitor can be mixed in appropriate amounts.
【００２２】なお、本発明の潤滑油基油組成物の潤滑油
基油は、トラクションドライブ流体，変速機油，油圧作
動油，コンプレッサー油，電気絶縁油などの基油に使用
できるが、中でもトラクションドライブ流体の基油に好
適に使用できる。The lubricating base oil of the lubricating base oil composition of the present invention can be used as a base oil such as a traction drive fluid, a transmission oil, a hydraulic oil, a compressor oil, and an electric insulating oil. It can be suitably used for a fluid base oil.
【００２３】本願の第二の発明は、（ａ）１８０℃以下
の引火点を有するナフテン系合成潤滑油基油８０〜９８
重量％に、（ｂ）該ナフテン系合成潤滑油基油より高い
引火点を有するパラフィン系合成潤滑油基油２〜２０重
量％を配合することを特徴とする引火点と低温流動性が
改良された潤滑油基油組成物の製造方法であり、上記に
説明した通りである。The second invention of the present application relates to (a) a naphthenic synthetic lubricating base oil 80 to 98 having a flash point of 180 ° C. or lower.
2% to 20% by weight of (b) a paraffinic synthetic lubricating base oil having a higher flash point than that of the naphthenic synthetic lubricating base oil. And a method for producing a lubricating base oil composition as described above.
【００２４】本発明においては、引火点が予想を超えて
加成性以上に向上する理由については定かではないが、
同じ炭化水素でもそれぞれが典型的なナフテン系化合物
とパラフィン系化合物であり分子構造が大きく異なるの
で、相互に溶解しているものの、ミクロ的には完全に混
合しておらず、引火点が高いパラフィン系化合物が液表
面に局在化しているために、パラフィン系化合物の引火
点に全体の引火点が引っ張られているものと推測され
る。In the present invention, the reason why the flash point is improved more than expected than the additive property is not clear,
Even the same hydrocarbons are typical naphthenic compounds and paraffinic compounds, each with a very different molecular structure.Thus, although they are mutually soluble, they are not completely mixed microscopically and have a high flash point. It is presumed that the entire flash point is pulled to the flash point of the paraffinic compound because the system compound is localized on the liquid surface.
【００２５】[0025]
【実施例】次に、本発明を実施例により具体的に説明す
るが、これらの実施例になんら制限されるものではな
い。 〔比較例１〕１リットルのステンレス製オートクレーブ
に、クロトンアルデヒド３５０．５ｇ（５モル）及びジ
シクロペンタジエン１９８．３ｇ（１．５モル）を仕込
み、１７０℃で２時間攪拌して反応させた。反応溶液を
室温まで冷却した後、５％ルテニウム−カーボン触媒
〔ＮＥケムキャット（株）製〕２２ｇを加え、水素圧７
０ｋｇ／ｃｍ2 Ｇ、反応温度１８０℃で４時間水素化を
行った。冷却後、触媒を濾別した後、濾液を減圧蒸留
し、７０℃／０．９Ｔｏｒｒ留分２４２ｇを得た。この
留分をマススペクトル，核磁気共鳴スペクトルで分析し
た結果、この留分は２−ヒドロキシメチル−３−メチル
ビシクロ〔２．２．１〕ヘプタンと３−ヒドロキシメチ
ル−２−メチルビシクロ〔２．２．１〕ヘプタンである
ことが確認された。Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples. Comparative Example 1 350.5 g (5 mol) of crotonaldehyde and 198.3 g (1.5 mol) of dicyclopentadiene were charged into a 1-liter stainless steel autoclave, and reacted by stirring at 170 ° C. for 2 hours. After cooling the reaction solution to room temperature, 22 g of a 5% ruthenium-carbon catalyst [manufactured by NE Chemcat Co., Ltd.] was added, and hydrogen pressure was increased to 7%.
Hydrogenation was performed at 0 kg / cm 2 G and a reaction temperature of 180 ° C. for 4 hours. After cooling, the catalyst was filtered off, and the filtrate was distilled under reduced pressure to obtain 242 g of a 70 ° C./0.9 Torr fraction. The fraction was analyzed by mass spectrum and nuclear magnetic resonance spectrum. As a result, the fraction was found to be 2-hydroxymethyl-3-methylbicyclo [2.2.1] heptane and 3-hydroxymethyl-2-methylbicyclo [2. 2.1] Heptane was confirmed.
【００２６】次いで、外径２０ｍｍ，長さ５００ｍｍの
石英ガラス製流通式常圧反応管に、γ−アルミナ〔日化
精工（株）製，ノートンアルミナＳＡ−６２７３〕１５
ｇを入れ、反応温度２７０℃，重量空間速度（ＷＨＳ
Ｖ）１．０７ｈｒ-1で脱水反応を行い、２−メチレン−
３−メチルビシクロ〔２．２．１〕ヘプタンと３−メチ
レン−２−メチルビシクロ〔２．２．１〕ヘプタン６５
重量％及び２，３−ジメチルビシクロ〔２．２．１〕ヘ
プト−２−エン２８重量％を含有する２−ヒドロキシメ
チル−３−メチルビシクロ〔２．２．１〕ヘプタンと３
−ヒドロキシメチル−２−メチルビシクロ〔２．２．
１〕ヘプタンの脱水反応生成物１９６ｇを得た。Next, γ-alumina (Norton Alumina SA-6273, manufactured by Nikka Seiko Co., Ltd.) was placed in a flowable atmospheric pressure reaction tube made of quartz glass having an outer diameter of 20 mm and a length of 500 mm.
g, the reaction temperature is 270 ° C., and the weight hourly space velocity (WHS
V) A dehydration reaction was performed at 1.07 hr -1 to give 2-methylene-
3-Methylbicyclo [2.2.1] heptane and 3-methylene-2-methylbicyclo [2.2.1] heptane 65
2-hydroxymethyl-3-methylbicyclo [2.2.1] heptane containing 2% by weight and 28% by weight of 2,3-dimethylbicyclo [2.2.1] hept-2-ene;
-Hydroxymethyl-2-methylbicyclo [2.2.
1] 196 g of a dehydration reaction product of heptane was obtained.
【００２７】（二量体水素化物の調製）５００ミリリッ
トルの四つ口フラスコに活性白土〔水澤化学（株）製ガ
レオンアースＮＳ〕９．５ｇ及び上記で得たオレフィン
化合物１９０ｇを入れ、１４５℃で３時間攪拌して二量
化反応を行った。この反応混合物から活性白土を濾過し
た後、１リットルオートクレーブに水素化用ニッケル／
ケイソウ土触媒〔日揮化学（株）製、Ｎ−１１３〕６ｇ
を加え、水素圧４０ｋｇ／ｃｍ2 Ｇ，反応温度１６０
℃，反応時間４時間の条件で水素化反応を行った。反応
終了後、濾過により触媒を除き、濾液を減圧で蒸留する
ことにより、沸点１２６〜１２８℃／０．２ｍｍＨｇ留
分の二量体水素化物１１６ｇを得た。この二量体水素化
物の一般性状及びトラクション係数の測定結果を第１表
に示す。(Preparation of dimer hydride) In a 500 ml four-necked flask, 9.5 g of activated clay [Galeon Earth NS manufactured by Mizusawa Chemical Co., Ltd.] and 190 g of the olefin compound obtained above were added, and the mixture was heated at 145 ° C. The mixture was stirred for 3 hours to perform a dimerization reaction. After the activated clay was filtered from the reaction mixture, nickel / hydrogenation was added to a 1 liter autoclave.
Diatomaceous earth catalyst [N-113, manufactured by JGC Chemicals, Inc.] 6 g
At a hydrogen pressure of 40 kg / cm 2 G and a reaction temperature of 160
The hydrogenation reaction was carried out under the conditions of ° C and a reaction time of 4 hours. After completion of the reaction, the catalyst was removed by filtration, and the filtrate was distilled under reduced pressure to obtain 116 g of a dimer hydride having a boiling point of 126 to 128 ° C / 0.2 mmHg fraction. Table 1 shows the general properties of the dimer hydride and the measurement results of the traction coefficient.
【００２８】〔実施例１〕比較例１で得られた基油に、
１−デセンの二量体の水素化物（出光ＰＡＯ−５００
２、引火点１７１℃）を、組成物全量基準で、１０重量
％配合した。この組成物の一般性状及びトラクション係
数の測定結果を第１表に示す。Example 1 The base oil obtained in Comparative Example 1
1-decene dimer hydride (Idemitsu PAO-500
2, a flash point of 171 ° C.) was incorporated in an amount of 10% by weight based on the total amount of the composition. Table 1 shows the general properties of the composition and the measurement results of the traction coefficient.
【００２９】〔比較例２〕還流冷却器、攪拌装置及び温
度計を備えた５００ミリリットルの四つ口フラスコに、
活性白土〔水澤化学工業（株）製、ガレオンアースＮ
Ｓ〕４ｇ、ジエチレングリコールモノエチルエーテル１
０ｇ及びα−メチルスチレン２００ｇ入れ、反応温度１
０５℃に加熱し、４時間攪拌した。反応終了後、生成液
をガスクロクロマトグラフィーで分析して、転化率７０
％、目的物α−メチルスチレン線状二量体の選択率９５
％、副生成物α−メチルスチレン環状二量体の選択率１
％、三量体等の高沸点物選択率４％であることがわかっ
た。この反応物を比較例１と同様に水素化、減圧蒸留を
行うことにより、９９重量％純度のα−メチルスチレン
線状二量体水素化物、すなわち２，４−ジシクロヘキシ
ル−２−メチルペンタン１２５ｇを得た。この二量体水
素化物の一般性状及びトラクション係数の測定結果を第
１表に示す。Comparative Example 2 A 500 ml four-necked flask equipped with a reflux condenser, a stirrer, and a thermometer was
Activated clay [Made by Mizusawa Chemical Industries, Galleon Earth N
S] 4 g, diethylene glycol monoethyl ether 1
0 g and α-methylstyrene 200 g, the reaction temperature 1
Heated to 05 ° C and stirred for 4 hours. After completion of the reaction, the product liquid was analyzed by gas chromatography, and the conversion rate was 70%.
%, Selectivity of the target α-methylstyrene linear dimer of 95
%, Selectivity of by-product α-methylstyrene cyclic dimer 1
%, Selectivity for high boiling point substances such as trimers was 4%. The reaction product was hydrogenated and distilled under reduced pressure in the same manner as in Comparative Example 1 to obtain 125 g of a 99% by weight pure α-methylstyrene linear dimer hydride, that is, 2,4-dicyclohexyl-2-methylpentane. Obtained. Table 1 shows the general properties of the dimer hydride and the measurement results of the traction coefficient.
【００３０】〔実施例２〕比較例２で得られた基油に、
１−デセンの二量体の水素化物（出光ＰＡＯ−５００
２、引火点１７１℃）を、組成物全量基準で、１５重量
％配合した。この組成物の一般性状及びトラクション係
数の測定結果を第１表に示す。Example 2 The base oil obtained in Comparative Example 2
1-decene dimer hydride (Idemitsu PAO-500
2, a flash point of 171 ° C.) was incorporated in an amount of 15% by weight based on the total amount of the composition. Table 1 shows the general properties of the composition and the measurement results of the traction coefficient.
【００３１】〔比較例３〕内容積５リットルのガラスフ
ラスコに、エチルベンゼン２，７００ｇ、金属ナトリウ
ム５８ｇ及びイソプロピルアルコール１７ｇを入れ、１
２０℃に加熱して攪拌しながらα−メチルスチレン１，
１００ｇとエチルベンゼン３００ｇとの混合物を５時間
にわたって徐々に滴下し、次いで１時間攪拌して反応を
行った。Comparative Example 3 In a glass flask having an internal volume of 5 liters, 2,700 g of ethylbenzene, 58 g of metallic sodium and 17 g of isopropyl alcohol were placed, and 1
While heating to 20 ° C. and stirring, α-methylstyrene 1,
A mixture of 100 g and 300 g of ethylbenzene was gradually added dropwise over 5 hours, and then stirred for 1 hour to carry out a reaction.
【００３２】反応終了後、冷却して油層を分離回収し、
これにメチルアルコール２００ｇを加え、５規定の塩酸
水溶液２リットルと飽和食塩水２リットルでそれぞれ３
回洗浄を行った。次に、無水硫酸ナトリウムで乾燥後、
ロータリーエバポレーターで未反応のエチルベンゼンを
留去し、さらに減圧蒸留により０．０６Ｔｏｒｒにおけ
る沸点範囲１０４〜１１０℃の留分を１，５００ｇ得
た。この留分は分析の結果、２，４−ジフェニルペンタ
ンであることが確認された。After completion of the reaction, the mixture is cooled to separate and collect an oil layer.
200 g of methyl alcohol was added to the mixture, and 2 liters of a 5N aqueous hydrochloric acid solution and 2 liters of saturated saline solution were added to the mixture.
Washing was performed twice. Next, after drying over anhydrous sodium sulfate,
Unreacted ethylbenzene was distilled off with a rotary evaporator, and further, distillation under reduced pressure yielded 1,500 g of a fraction having a boiling point range of 104 to 110 ° C at 0.06 Torr. As a result of analysis, this fraction was confirmed to be 2,4-diphenylpentane.
【００３３】次いで、この留分５００ミリリットルを内
容積１リットルのオートクレーブに入れ、水素化用ニッ
ケル触媒〔日揮化学（株）製、Ｎ−１１３〕２０ｇを添
加して、反応温度２００℃、水素圧５０ｋｇ／ｃｍ2 Ｇ
の条件で水素化処理した。反応終了後、触媒を除去し、
軽質分をストリッピングして分析した結果、水素化率は
９９％以上であり、この水素化生成物４２０ｇは２，４
−ジシクロヘキシルペンタンであることが確認された。
この水素化生成物の一般性状及びトラクション係数の測
定結果を第１表に示す。Next, 500 ml of this fraction was put into an autoclave having an internal volume of 1 liter, and 20 g of a nickel catalyst for hydrogenation (N-113, manufactured by Nikki Chemical Co., Ltd.) was added. 50kg / cm 2 G
Hydrotreating conditions. After the reaction, remove the catalyst,
As a result of stripping and analyzing the light components, the hydrogenation rate was 99% or more, and 420 g of this hydrogenated product was 2,4.
-Dicyclohexylpentane.
Table 1 shows the general properties of the hydrogenated product and the measurement results of the traction coefficient.
【００３４】〔実施例３〕比較例３で得られた基油に、
１−デセンの二量体の水素化物（出光ＰＡＯ−５００
２、引火点１７１℃）を、組成物全量基準で、５重量％
配合した。この組成物の一般性状及びトラクション係数
の測定結果を第１表に示す。Example 3 The base oil obtained in Comparative Example 3
1-decene dimer hydride (Idemitsu PAO-500
2, the flash point of 171 ° C.) is 5% by weight based on the total amount of the composition.
Was blended. Table 1 shows the general properties of the composition and the measurement results of the traction coefficient.
【００３５】〔比較例４〕比較例１で得られた基油に、
比較例３で得られた基油を１０重量％配合した。この組
成物の一般性状及びトラクション係数の測定結果を第１
表に示す。Comparative Example 4 The base oil obtained in Comparative Example 1
10% by weight of the base oil obtained in Comparative Example 3 was blended. Measurement results of the general properties and traction coefficient of this composition
It is shown in the table.
【００３６】なお、上記の実施例及び比較例におけるト
ラクション係数の測定は、二円筒摩擦試験機にて行っ
た。すなわち、接している同じサイズの円筒（直径５２
ｍｍ、厚さ６ｍｍで被駆動側は曲率半径１０ｍｍのタイ
コ型、駆動側はクラウニングなしのフラット型）の一方
を一定速度で、他方の回転速度を連続的に変化させ、両
円筒の接触部分に錘により９８．０Ｎの荷重を与えて、
両円筒間に発生する接線力、即ちトラクション力を測定
し、トラクション係数を求めた。この円筒は軸受鋼ＳＵ
Ｊ−２鏡面仕上げでできており、平均周速６．８ｍ／
ｓ、最大ヘルツ接触圧は１．２３Ｇｐａであった。ま
た、流体温度（油温）１４０℃でのトラクション係数を
測定するにあたっては、油タンクをヒーターで加熱する
ことにより、油温を４０℃から１４０℃まで昇温させ、
すべり率５％におけるトラクション係数を求めた。The measurement of the traction coefficient in the above Examples and Comparative Examples was performed using a two-cylinder friction tester. That is, a cylinder of the same size in contact (diameter 52
mm, thickness 6mm, the driven side is a Tyco type with a radius of curvature of 10mm, and the driving side is a flat type without crowning). Apply a load of 98.0N with the weight,
The tangential force generated between the two cylinders, that is, the traction force was measured, and the traction coefficient was determined. This cylinder is bearing steel SU
J-2 Mirror finish, average peripheral speed 6.8m /
s, the maximum Hertz contact pressure was 1.23 Gpa. In measuring the traction coefficient at a fluid temperature (oil temperature) of 140 ° C., the oil temperature was raised from 40 ° C. to 140 ° C. by heating the oil tank with a heater.
The traction coefficient at a slip ratio of 5% was determined.
【００３７】[0037]
【表１】 [Table 1]
【００３８】[0038]
【表２】 [Table 2]
【００３９】[0039]
【発明の効果】本発明の潤滑油基油組成物は、高温での
トラクション係数が高く、低温流動特性に優れており、
かつ引火点も十分に高く、寒冷地から高温地帯まで、全
世界でトラクションドライブ式ＣＶＴ油として実用的に
利用することができる。The lubricating base oil composition of the present invention has a high traction coefficient at high temperatures and excellent low-temperature fluidity,
In addition, the flash point is sufficiently high, and it can be practically used as a traction drive type CVT oil worldwide from cold regions to high temperature regions.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ１０Ｎ 20:02 40:04 40:30 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) C10N 20:02 40:04 40:30
Claims (9)
フテン系合成潤滑油基油８０〜９８重量％及び（ｂ）該
ナフテン系合成潤滑油基油より高い引火点を有するパラ
フィン系合成潤滑油基油２〜２０重量％からなる潤滑油
基油組成物。1. A synthetic paraffinic lubricating oil having a flash point of (a) 80 to 98% by weight of a naphthenic synthetic lubricating base oil having a flash point of 180 ° C. or lower and (b) a higher flash point than the naphthenic synthetic lubricating base oil. A lubricating base oil composition comprising 2 to 20% by weight of an oil base oil.
が、シクロヘキサン環、ビシクロヘプタン環及びビシク
ロオクタン環より選ばれる環を有する化合物である請求
項１記載の潤滑油基油組成物。2. The lubricating base oil composition according to claim 1, wherein the naphthenic synthetic lubricating base oil of component (a) is a compound having a ring selected from a cyclohexane ring, a bicycloheptane ring and a bicyclooctane ring.
が、シクロヘキサン環、ビシクロ〔２．２．１〕ヘプタ
ン環、ビシクロ〔３．２．１〕オクタン環、ビシクロ
〔２．２．２〕オクタン環及びビシクロ〔３．３．０〕
オクタン環から選ばれる環を少なくとも２個有する化合
物である請求項１又は２に記載の潤滑油基油組成物。3. The naphthene-based synthetic lubricating base oil of component (a) is a cyclohexane ring, a bicyclo [2.2.1] heptane ring, a bicyclo [3.2.1] octane ring, or a bicyclo [2.2. 2] Octane ring and bicyclo [3.3.0]
The lubricating base oil composition according to claim 1 or 2, which is a compound having at least two rings selected from octane rings.
油が、ポリα−オレフィン、α−オレフィンコポリマー
である請求項１〜３のいずれかに記載の潤滑油基油組成
物。4. The lubricating base oil composition according to claim 1, wherein the paraffin-based synthetic lubricating base oil (b) is a poly-α-olefin or α-olefin copolymer.
油が、全炭素数１６〜４０を有するものである請求項１
〜４のいずれかに記載の潤滑油基油組成物。5. The paraffinic synthetic lubricating base oil of component (b) has a total carbon number of 16 to 40.
A lubricating base oil composition according to any one of claims 1 to 4.
油が、全炭素数１６〜２６を有するものである請求項１
〜５のいずれかに記載の潤滑油基油組成物。6. The paraffinic synthetic lubricating base oil of component (b) has a total carbon number of 16 to 26.
A lubricating base oil composition according to any one of claims 1 to 5.
量体の水素化物である請求項４〜６のいずれかに記載の
潤滑油基油組成物。7. The lubricating base oil composition according to claim 4, wherein the poly-α-olefin is a hydrogenated dimer of decene-1.
イブ用流体の基油組成物である請求項１〜７のいずれか
に記載の潤滑油基油組成物。8. The lubricating base oil composition according to claim 1, wherein the lubricating base oil composition is a traction drive fluid base oil composition.
フテン系合成潤滑油基油８０〜９８重量％に、（ｂ）該
ナフテン系合成潤滑油基油より高い引火点を有するパラ
フィン系合成潤滑油基油２〜２０重量％を配合すること
を特徴とする引火点と低温流動性が改良された潤滑油基
油組成物の製造方法。9. A paraffinic synthesis having a flash point of 80 to 98% by weight of a naphthenic synthetic lubricating base oil having a flash point of 180 ° C. or lower, and (b) a flash point higher than that of the naphthenic synthetic lubricating base oil. A method for producing a lubricating base oil composition having an improved flash point and low-temperature fluidity, comprising blending 2 to 20% by weight of a lubricating base oil.
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|---|---|---|---|
| JP31635599A JP4560157B2 (en) | 1998-11-13 | 1999-11-08 | Lubricating base oil composition and method for producing the same |
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|---|---|---|---|
| JP32370798 | 1998-11-13 | ||
| JP10-323707 | 1998-11-13 | ||
| JP31635599A JP4560157B2 (en) | 1998-11-13 | 1999-11-08 | Lubricating base oil composition and method for producing the same |
Publications (2)
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|---|---|
| JP2000204386A true JP2000204386A (en) | 2000-07-25 |
| JP4560157B2 JP4560157B2 (en) | 2010-10-13 |
Family
ID=26568630
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| JP2002348584A (en) * | 2001-05-29 | 2002-12-04 | Idemitsu Kosan Co Ltd | Lubricating oil base oil composition |
| JP2004262980A (en) * | 2003-02-21 | 2004-09-24 | Nippon Oil Corp | Lubricating oil composition for transmission |
| JP2004262979A (en) * | 2003-02-21 | 2004-09-24 | Nippon Oil Corp | Lubricating oil composition for transmission |
| JPWO2004026998A1 (en) * | 2002-09-18 | 2006-01-19 | 出光興産株式会社 | Fluid composition for traction drive |
| WO2009001821A1 (en) * | 2007-06-25 | 2008-12-31 | Idemitsu Kosan Co., Ltd. | Lubricating oil for non-stage transmission |
| WO2019146779A1 (en) | 2018-01-29 | 2019-08-01 | 出光興産株式会社 | Lubricant composition, method for producing lubricant composition, and continuously variable transmission |
| WO2019176569A1 (en) | 2018-03-13 | 2019-09-19 | 出光興産株式会社 | Lubricating oil composition, method for producing lubricating oil composition, and continuously variable transmission |
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| WO2019146779A1 (en) | 2018-01-29 | 2019-08-01 | 出光興産株式会社 | Lubricant composition, method for producing lubricant composition, and continuously variable transmission |
| US11306270B2 (en) | 2018-01-29 | 2022-04-19 | Idemitsu Kosan Co., Ltd. | Lubricant composition, method for producing lubricant composition, and continuously variable transmission |
| WO2019176569A1 (en) | 2018-03-13 | 2019-09-19 | 出光興産株式会社 | Lubricating oil composition, method for producing lubricating oil composition, and continuously variable transmission |
| JP2019156978A (en) * | 2018-03-13 | 2019-09-19 | 出光興産株式会社 | Lubricant composition, manufacturing method of lubricant composition, and non-stage transmission |
| US11208606B2 (en) | 2018-03-13 | 2021-12-28 | Idemitsu Kosan Co., Ltd. | Lubricating oil composition, method for producing lubricating oil composition, and continuously variable transmission |
| JP7016733B2 (en) | 2018-03-13 | 2022-02-07 | 出光興産株式会社 | Lubricating oil composition, manufacturing method of lubricating oil composition and continuously variable transmission |
| JP2020066682A (en) * | 2018-10-25 | 2020-04-30 | 出光興産株式会社 | Lubricating base oil and lubricating oil composition and method of using lubricating oil composition |
| WO2020085475A1 (en) | 2018-10-25 | 2020-04-30 | 出光興産株式会社 | Lubricating oil base oil, lubricating oil composition, and method for using lubricating oil composition |
| CN112912481A (en) * | 2018-10-25 | 2021-06-04 | 出光兴产株式会社 | Lubricating oil base oil, lubricating oil composition, and method for using lubricating oil composition |
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