JPS6274998A - Anticorrosive lubricating oil - Google Patents

Anticorrosive lubricating oil

Info

Publication number
JPS6274998A
JPS6274998A JP21420385A JP21420385A JPS6274998A JP S6274998 A JPS6274998 A JP S6274998A JP 21420385 A JP21420385 A JP 21420385A JP 21420385 A JP21420385 A JP 21420385A JP S6274998 A JPS6274998 A JP S6274998A
Authority
JP
Japan
Prior art keywords
perfluoroalkyl polyether
rust
oil
lubricating oil
group
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
JP21420385A
Other languages
Japanese (ja)
Other versions
JPH0369396B2 (en
Inventor
Takateru Idekura
隆輝 出蔵
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.)
Maruwa Bussan KK
Original Assignee
Maruwa Bussan KK
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 Maruwa Bussan KK filed Critical Maruwa Bussan KK
Priority to JP21420385A priority Critical patent/JPS6274998A/en
Publication of JPS6274998A publication Critical patent/JPS6274998A/en
Publication of JPH0369396B2 publication Critical patent/JPH0369396B2/ja
Granted legal-status Critical Current

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  • Lubricants (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

PURPOSE:To impart excellent anticorrosiveness to a perfluoroalkyl polyether oil which has been conventionally used as a lubricating oil, by adding an anticorrosive agent comprising a perfluoroalkyl polyether having a polar group at its terminal to a base oil comprising a perfluoroalkyl polyether. CONSTITUTION:The titled lubricating oil is obtained by mixing a base oil comprising a perfluoroalkyl polyether with 0.1-90wt% anticorrosive agent comprising a perfluoroalkyl polyether having a polar group at its terminal. Examples of the polar group include a carboxylic acid group and its salt, an amide group, and a salt of sulfonic acid. Examples of the metal which forms a metal salt include Na, Ca, Mg, Li, and Ba. The perfluoroalkyl polyether as the base oil is a polymer comprising at least one Rf group of formulae 1-4 and having a weight-average MW of 1,000-50,000.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、防錆性を有するパーフルオロアルキルポリエ
ーテル系の防錆潤滑油に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a perfluoroalkyl polyether-based rust-preventing lubricant having rust-preventive properties.

〔従来の技術〕[Conventional technology]

近年、コンピュータードライブ機構、原子力機器、航空
機機器、産業用ロボットのギヤ、自動車部品の軸受等の
潤滑、或いは半導体製造用真空ポンプ油等のためにパー
フルオロアルキルポリエーテル油からなる潤滑油が使用
されている。このパーフルオロアルキルポリエーテル油
は優れた潤滑性、熱安定性、耐熱性、耐化学薬品性、低
蒸発性等の物性を有する高品質の潤滑油である。
In recent years, lubricating oils made of perfluoroalkyl polyether oils have been used for lubrication of computer drive mechanisms, nuclear equipment, aircraft equipment, gears of industrial robots, bearings of automobile parts, vacuum pump oil for semiconductor manufacturing, etc. ing. This perfluoroalkyl polyether oil is a high-quality lubricating oil that has physical properties such as excellent lubricity, thermal stability, heat resistance, chemical resistance, and low evaporation.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、上記パーフルオロアルキルポリエーテル
油は炭素、酸素、フッ素を含んだ重合体からなるもので
あり、完全に飽和されていて非常に安定な化合物である
ため表面張力が低く金属に対する良好な濡れ性を有する
反面、化学的吸着性が悪いために金属に付着している水
分等の影響を受けやす(、その結果、金属面に錆が発生
するという問題点を有するものである。例えば、パーフ
ルオロアルキルポリエーテル油は、これを潤滑油として
実際に使用した場合、機器のオイルリザーバーにおいて
その垂直壁面部に錆が発生してしまい、また、その謂が
潤滑油に混入し機器の寿命が低下してしまうと(・う欠
点がある。
However, the above-mentioned perfluoroalkyl polyether oil is composed of a polymer containing carbon, oxygen, and fluorine, and is a completely saturated and extremely stable compound, so it has a low surface tension and good wettability for metals. On the other hand, because of its poor chemical adsorption, it is susceptible to the effects of moisture adhering to the metal (as a result, it has the problem of rusting on the metal surface. For example, perfluorinated When alkyl polyether oil is actually used as a lubricating oil, rust will form on the vertical walls of the oil reservoir of equipment, and the so-called rust will get mixed into the lubricating oil, reducing the life of the equipment. If you do that, there is a drawback.

マタ、パーフルオロアルキルポリエーテル油は防錆性を
扁めるための一般の防錆剤との相溶性を有していないこ
とから、防錆性の改良が極めて困難なものである。
Since perfluoroalkyl polyether oil has no compatibility with general rust preventive agents that reduce rust prevention, it is extremely difficult to improve rust prevention.

〔問題点を解決するための手段〕[Means for solving problems]

本発明者(等)は上記課題に鑑み鋭意研究した結果、両
端及び一端に防錆性を寄与するための極性基を有するパ
ーフルオロアルキルポリエーテルからなる防錆剤がパー
フルオロアルキルポリエーテル油に相溶性を有する防錆
剤であり、単独にても非常に効果的な防錆性を有し、且
つ上記防錆剤を混合してなるパーフルオロアルキルポリ
エーテル油が優れた防錆性を有する防錆潤滑油であるこ
とを見出し、本発明を完成するに至った。
As a result of intensive research in view of the above-mentioned problems, the present inventors (and others) have found that a rust preventive agent consisting of perfluoroalkyl polyether having polar groups at both ends and one end to contribute to rust prevention has been developed in perfluoroalkyl polyether oil. It is a compatible rust preventive agent and has very effective rust preventive properties even when used alone, and perfluoroalkyl polyether oil obtained by mixing the above rust preventives has excellent rust preventive properties. They discovered that it is a rust-preventing lubricating oil and completed the present invention.

即ち、本発明の防錆潤滑油はパーフルオロアルキルポリ
エーテルからなろ基油に、末端に極性基を有するパーフ
ルオロアルキルポリエーテルカラなる防錆剤を0.1乃
至90重量チ混合してなることを特徴とするものである
That is, the rust-preventing lubricating oil of the present invention is made by mixing 0.1 to 90 weight percent of a perfluoroalkyl polyether color rust preventive agent having a polar group at the end with a perfluoroalkyl polyether base oil. It is characterized by:

〔実施例〕〔Example〕

以下、本発明を説明する。 The present invention will be explained below.

本発明の防錆潤滑油の基油として使用するパーフルオロ
アルキルポリエーテルは下記Rfの重合体からなるもの
であり、1種類のRfからなる単体の繰り返した基、或
いは2種類以上のRfが交互、又はランダムに結合され
てなる基の両側にフッ素(F−)、パーフルオロアルキ
ル基(CnF2n1+ t )及びパーフルオロアルコ
キシ基(CnF2n1 O)(但し、n:整数)のいず
れかが結合されてなり、且つ重量平均分子量が1000
〜5ooooのものである。上記Rfは、以下のもので
ある。
The perfluoroalkyl polyether used as the base oil of the rust-preventing lubricating oil of the present invention is composed of a polymer of the following Rf, and is composed of a single repeated group consisting of one type of Rf, or two or more types of Rf alternately. , or one of fluorine (F-), perfluoroalkyl group (CnF2n1+ t ), and perfluoroalkoxy group (CnF2n1 O) (where n: an integer) is bonded to both sides of the randomly bonded group. , and the weight average molecular weight is 1000
~5oooo. The above Rf is as follows.

(1)  −CF−CF、−0− CF。(1) -CF-CF, -0- C.F.

(2)  −CF、−CF、−CF、−〇 −(3) 
 −CF、−0− (4)  −CF2−CF、−〇 − 上記パーフルオロアルキルポリエーテル油としては、例
えば、下記構造式を有するものが挙げられる。
(2) -CF, -CF, -CF, -〇 -(3)
-CF, -0- (4) -CF2-CF, -0- Examples of the perfluoroalkyl polyether oil include those having the following structural formula.

■ F −(CF−CF、−0−)n C2F。■ F - (CF-CF, -0-)n C2F.

CF。C.F.

■ lI’ −(CF、−CF’、−CF、−〇すne
tFs■ CFa  ((OCF  CFJn  (O
CFt)m〕■ CF。
■ lI' -(CF, -CF', -CF, -〇sne
tFs■ CFa ((OCF CFJn (O
CFt)m〕■ CF.

一〇CF3 ■ CFa  C(OCF2  CFz)x  (OC
Ft)y)−〇CF。
10CF3 ■ CFa C(OCF2 CFz)x (OC
Ft)y)-〇CF.

但し    5≦n≦300 3 ≦ m ≦ 750 3 ≦ X ≦ 450 3 ≦ y ≦ 750 本発明の防錆潤滑油は、上記したパーフルオロアルキル
ポリエーテル油に相溶性のあり且つ防錆性を高めるため
の防錆剤を混合してなるものである。のって、本発明に
おけろ上記防錆剤は末端に極性基を有するパーフルオロ
アルキルポリエーテルかもなるものであり、即ち、Rf
の重合体からなるパーフルオロアルキルポリエーテルの
両端及び一端に防錆性を高めろための極性基が結合して
いるものであり、且つ重量平均分子量が1000〜5o
oooのものである。上記極性基とは、金属に対する吸
着性を有し、且つミセル構造を作るものであり、具体的
には、カルボン酸基及びその塩、アミド基、スルホン酸
の塩である。尚、上記極性基のうち金属塩は、ナトリウ
ム、カルシウム、マグネシウム、リチウム及びバリウム
のいずれかを付加反応させたものである。
However, 5≦n≦300 3≦m≦750 3≦X≦450 3≦y≦750 The rust-preventing lubricating oil of the present invention is compatible with the above-mentioned perfluoroalkyl polyether oil and improves rust prevention. It is made by mixing a rust preventive agent. Accordingly, in the present invention, the above-mentioned rust preventive agent is composed of perfluoroalkyl polyether having a polar group at the terminal, that is, Rf
Polar groups are bonded to both ends and one end of a perfluoroalkyl polyether consisting of a polymer of
It belongs to ooo. The above-mentioned polar group has an adsorption property for metals and forms a micelle structure, and specifically includes a carboxylic acid group and its salt, an amide group, and a sulfonic acid salt. Incidentally, among the above-mentioned polar groups, the metal salt is obtained by addition-reacting any one of sodium, calcium, magnesium, lithium, and barium.

本発明における防錆剤は、上記極性基の少な(とも1種
類以上のものがRfの重合体(几fは、上記パーフルオ
ロアルキルポリエーテルにおけるRfと同様のものであ
る。)の末端に結合されてなるものである。
The rust preventive agent in the present invention is bonded to the terminal of the polymer having a small number of polar groups (where at least one type is Rf (F is the same as Rf in the perfluoroalkyl polyether). It is something that has been done.

本発明防錆潤滑油は、上記パーフルオロアルキルポリエ
ーテル基油に、上記防錆剤を01乃至90重量%混合し
てなるものであり、上記防錆剤の混合量が0.1重量多
未満の場合はほとんど防錆性は顕著な効果が見られず、
逆に混合量が90重量係を越えるものは良好な防錆性を
有するが金属に対するじみや変色が発生する。
The rust-preventing lubricating oil of the present invention is made by mixing the above-mentioned perfluoroalkyl polyether base oil with the above-mentioned rust preventive agent in an amount of 0.1 to 90% by weight, and the amount of the above-mentioned rust preventive agent mixed is less than 0.1 weight%. In the case of , there is almost no noticeable effect on rust prevention,
On the other hand, if the mixing amount exceeds 90% by weight, it has good rust prevention properties, but bleeds and discolors on metals.

次に、具体的実施例、比較例を挙げて本発明を更に詳細
に説明する。
Next, the present invention will be explained in more detail by giving specific examples and comparative examples.

実施例1〜9 パーフルオロアルキルポリエーテルに各種防錆剤を混合
し攪拌して防錆潤滑油な得(それらを第1表(別紙)に
示す。)、それらを用いて後述する試験を行った。
Examples 1 to 9 Various rust preventives were mixed with perfluoroalkyl polyether and stirred to obtain a rust preventive lubricant (these are shown in Table 1 (attached sheet)), and the tests described below were conducted using them. Ta.

比較例1 JIS  K  2246の規定による第1種の一般さ
び止め油であるNP−7(市販物)を用いて後述する試
験を行った。
Comparative Example 1 The test described below was conducted using NP-7 (commercially available), which is the first type of general anticorrosion oil according to JIS K 2246.

比較例2 本発明における防錆剤を混合してないパーフルオロアル
キルポリエーテル油を用いて後述する試験を行った。
Comparative Example 2 A test described below was conducted using perfluoroalkyl polyether oil in which the rust preventive of the present invention was not mixed.

上記実施例1〜9の防錆潤滑油及び比較例1、比較例2
のさび止め油、パーフルオロアルキルポリエーテル油を
用(・て下記の試験を行った。
Rust-preventing lubricating oils of Examples 1 to 9 above and Comparative Examples 1 and 2
The following tests were conducted using a rust preventive oil and perfluoroalkyl polyether oil.

(1)湿潤試験 JIS  K  2246の規定による湿潤試験を行い
その試験片(測定面5 x 5 mm )の平均さび発
生度を測定した。
(1) Wet test A wet test was conducted according to the provisions of JIS K 2246, and the average degree of rust occurrence of the test piece (measurement surface 5 x 5 mm) was measured.

(2)塩水噴霧試験 JIS  K  2246の規定による塩水噴霧試験を
行いその試験片(測定面5 X 5 mm )の平均さ
び発生度を測定した。
(2) Salt water spray test A salt water spray test was conducted according to the provisions of JIS K 2246, and the average degree of rust occurrence of the test piece (measurement surface 5 x 5 mm) was measured.

(3)防錆試験 上記(1)、(2)の試験に使用した試験片の変色程度
を観察した。防錆効果の順位は次のように示した。
(3) Rust prevention test The degree of discoloration of the test pieces used in the tests (1) and (2) above was observed. The ranking of rust prevention effect is shown as follows.

変色なし〉 やや変色〉変色 上記(1)〜(3)の試験の結果を第2表(別紙)に示
す。
No discoloration> Slight discoloration> Discoloration The results of the tests (1) to (3) above are shown in Table 2 (attached sheet).

さび発生度の測定方法は、各試験片に一片が5mmの正
方形の基盤目100個からなる測定板を重ね合わせ、肉
眼でさびが発生している基盤目を数えたものであり、そ
の数を0,1〜10及び11〜25に分け、それぞれA
級、B級、6級として平均さび発生度を表示した。
The method for measuring the degree of rust occurrence is to place a measuring plate consisting of 100 square base holes of 5 mm each on each test piece, count the base squares where rust has occurred with the naked eye, and calculate the number. Divided into 0, 1-10 and 11-25, respectively A
The average degree of rust occurrence was indicated as class, B class, and 6 class.

第2表から明らかな通り本発明の防錆潤滑油は、特に湿
潤試験における平均さび発生度が全てA級であり、JI
S  K  2246規定第1棟の一般さび止め油(N
P−7)と比較して、いずれも遜色のない優れた防錆能
力を有するものであった。
As is clear from Table 2, the rust-preventing lubricating oil of the present invention has an average degree of rust occurrence particularly in the wet test, which is all grade A.
S K 2246 regulation 1st building general anti-rust oil (N
P-7), all of them had excellent rust prevention ability comparable to that of P-7).

尚、湿潤試験後の除膜性は、一般にJIS  K220
1規定の5号工業ガソリンで6除膜されることパになっ
ている。しかしながら本発明防錆潤滑油は、パーフルオ
ロアルキルボリエーテルカ上記工業ガソリンに不溶のた
め、代わってトリフルオロトリクロロエタンによって除
膜されるものである。
The film removability after the wet test is generally determined according to JIS K220.
It is supposed to be possible to remove the 6 film with No. 5 industrial gasoline according to the 1st regulation. However, since the rust-preventing lubricating oil of the present invention is insoluble in the above-mentioned industrial gasoline, perfluoroalkyl polyether is removed by trifluorotrichloroethane instead.

〔発明の効果〕〔Effect of the invention〕

以上、説明したように本発明の防錆潤滑油はパーフルオ
ロアルキルポリエーテルからなる基油に、末端に極性基
を有するパーフルオロアルキルポリエーテルからなる防
錆剤を0.1乃至90重”4%混合してなるため、従来
、潤滑油として使用されていたパーフルオロアルキルポ
リエーテル油に纜れた防錆性を付与することが可能とな
り、その結果、本発明を実際に使用した場合、錆の発生
及び錆の潤滑油への混入がな(なり機器の寿命を延ばす
ことが可能となる効果がある。
As explained above, the rust-preventing lubricating oil of the present invention contains a base oil made of perfluoroalkyl polyether and a rust preventive agent made of perfluoroalkyl polyether having a polar group at the end of 0.1 to 90% by weight. %, it is possible to impart rust prevention properties similar to perfluoroalkyl polyether oils conventionally used as lubricants.As a result, when the present invention is actually used, rust prevention This has the effect of preventing the occurrence of rust and the mixing of rust into lubricating oil, thereby extending the life of the equipment.

また、一般にパーフルオロアルキルポリエーテル油を潤
滑油として使用する高価な機器等は、その潤滑部がステ
ンレス、メッキによるコーティング等の高価な材質又は
複雑な製造工程を必要とする手段により形成され、これ
により防食性を保持しているが、本発明によれば、良好
な潤滑性と防錆性を有するため上記潤滑部等の形成に当
たって高価な材質を使用する必要性がな(なり、一般の
潤滑部を形成する材質等に変更が可能となり、そのため
潤滑部の製造上の経済的メリットとともに潤滑部の製造
工程の簡便化を図ることができると(・う種々の効果を
有する。
In general, expensive equipment that uses perfluoroalkyl polyether oil as a lubricant has lubricating parts made of expensive materials such as stainless steel or plating coating, or by means that require complicated manufacturing processes. However, according to the present invention, since it has good lubricity and rust prevention properties, there is no need to use expensive materials for forming the above-mentioned lubricating parts. It is possible to change the material of which the lubricating part is formed, and as a result, it is possible to achieve economical advantages in manufacturing the lubricating part as well as simplifying the manufacturing process of the lubricating part.

特許出願人  丸相物産株式会社。他、名)第  1 
 表 第  2  表
Patent applicant: Maruso Bussan Co., Ltd. other, noun) 1st
Table 2

Claims (1)

【特許請求の範囲】[Claims] パーフルオロアルキルポリエーテルの末端に極性基を有
する物質単体及びパーフルオロアルキルポリエーテルか
らなる基油に、末端に極性基を有するパーフルオロアル
キルポリエーテルからなる防錆剤を0.1乃至90重量
%混合してなることを特徴とする防錆潤滑油。
0.1 to 90% by weight of a rust preventive agent made of perfluoroalkyl polyether having a polar group at the end is added to a base oil consisting of a single substance having a polar group at the end of perfluoroalkyl polyether and perfluoroalkyl polyether. A rust-preventing lubricant characterized by being a mixture.
JP21420385A 1985-09-27 1985-09-27 Anticorrosive lubricating oil Granted JPS6274998A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21420385A JPS6274998A (en) 1985-09-27 1985-09-27 Anticorrosive lubricating oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21420385A JPS6274998A (en) 1985-09-27 1985-09-27 Anticorrosive lubricating oil

Publications (2)

Publication Number Publication Date
JPS6274998A true JPS6274998A (en) 1987-04-06
JPH0369396B2 JPH0369396B2 (en) 1991-10-31

Family

ID=16651936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21420385A Granted JPS6274998A (en) 1985-09-27 1985-09-27 Anticorrosive lubricating oil

Country Status (1)

Country Link
JP (1) JPS6274998A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258600A (en) * 1988-04-13 1990-02-27 Ausimont Spa Perfluoropolyether-base lubricant, or rust preventive additive used in grease
GB2283758A (en) * 1993-11-11 1995-05-17 Nsk Ltd Rust preventive lubricating oil
US6194074B1 (en) 1996-03-13 2001-02-27 Amadeus Wiesemann Gasket with corrosion inhibitor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258600A (en) * 1988-04-13 1990-02-27 Ausimont Spa Perfluoropolyether-base lubricant, or rust preventive additive used in grease
GB2283758A (en) * 1993-11-11 1995-05-17 Nsk Ltd Rust preventive lubricating oil
US5656582A (en) * 1993-11-11 1997-08-12 Nsk Limited Rust preventive lubricating oil
US6194074B1 (en) 1996-03-13 2001-02-27 Amadeus Wiesemann Gasket with corrosion inhibitor

Also Published As

Publication number Publication date
JPH0369396B2 (en) 1991-10-31

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