JPS6239639B2 - - Google Patents
Info
- Publication number
- JPS6239639B2 JPS6239639B2 JP54136555A JP13655579A JPS6239639B2 JP S6239639 B2 JPS6239639 B2 JP S6239639B2 JP 54136555 A JP54136555 A JP 54136555A JP 13655579 A JP13655579 A JP 13655579A JP S6239639 B2 JPS6239639 B2 JP S6239639B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- pmsio
- prepared
- neopentyl glycol
- following mixing
- 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.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 9
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- -1 Alkylene glycols Chemical class 0.000 description 15
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 6
- 150000005690 diesters Chemical class 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000002522 swelling effect Effects 0.000 description 4
- 239000005635 Caprylic acid (CAS 124-07-2) Substances 0.000 description 3
- 229960002446 octanoic acid Drugs 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XSWQDGRHJKCMFG-UHFFFAOYSA-N C(CCC)(=O)O.OCC(C)(CO)C Chemical compound C(CCC)(=O)O.OCC(C)(CO)C XSWQDGRHJKCMFG-UHFFFAOYSA-N 0.000 description 1
- TYTBOMQXAONYNH-UHFFFAOYSA-N C(CCCCCCCCCCCCCCCCCCCCC)(=O)O.OCC(C)(CO)C Chemical compound C(CCCCCCCCCCCCCCCCCCCCC)(=O)O.OCC(C)(CO)C TYTBOMQXAONYNH-UHFFFAOYSA-N 0.000 description 1
- NFPQFQKETNKSCX-UHFFFAOYSA-N OCC(C)(CO)C.C(CCCCCCCCCCCCCCC(C)C)(=O)O Chemical compound OCC(C)(CO)C.C(CCCCCCCCCCCCCCC(C)C)(=O)O NFPQFQKETNKSCX-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- AMAIUVVQEKFSED-UHFFFAOYSA-N acetic acid;2,2-dimethylpropane-1,3-diol Chemical compound CC(O)=O.OCC(C)(C)CO AMAIUVVQEKFSED-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- MFMCGVABIQQSMG-UHFFFAOYSA-N decanoic acid;2,2-dimethylpropane-1,3-diol Chemical compound OCC(C)(C)CO.CCCCCCCCCC(O)=O MFMCGVABIQQSMG-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical class OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
- C10M2229/0415—Siloxanes with specific structure containing aliphatic substituents used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/042—Siloxanes with specific structure containing aromatic substituents
- C10M2229/0425—Siloxanes with specific structure containing aromatic substituents used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
本発明は、自動車用ブレーキ液などの液圧作用
流体組成物に関するものである。
更に詳しくは、本発明は、有機ポリシロキサン
中に、ネオペンチルグリコールエステルを含有す
る混合物を主成分とする液圧作用流体組成物に関
するものである。
アルキレングリコール類は、従来より液圧作用
流体、特に、自動車用ブレーキ液として使用され
ている。しかしながらアルキレングリコール類を
使用したブレーキ液は、種々の欠点を有してい
る。即ち、低温粘度が高く、寒冷地においては、
その使用機能を緩慢化させ、又、吸湿性が高く、
系中に混入した水分は、ブレーキ液の沸点を著し
く降下させ、いわゆるペーパーロツク現象をひき
起すなど、安全上、極めて問題がある。
このようなアルキレングリコール類の欠点を解
決する基材として、有機シリコーン化合物が提案
されている。しかし、液圧システムに使用される
金属材料に対して、潤滑性が乏しい、低温時にお
いて、混入した微量水分が分離する、シール材と
して、一般的に使用されているSBRを収縮させる
などの問題点が指摘されている。
本発明者らは、有機シリコーン材料の特性につ
いて、鋭意検討し、研究を重ねた結果、有機ポリ
シロキサン中に、ネオペンチルグリコールエステ
ルを含有する混合物が、潤滑性、ゴム膨潤性、耐
寒性を著しく改良した優れた液圧作用流体を与え
ることを見出し、本発明を完成させた。
即ち、本発明の液圧作用流体組成物は、
一般式
R3SiO（R2SiO）oSiR3 （）
（ただし、Ｒはメチル基またはフエニル基で同一
であつても、異なつていてもよい。ｎは５から
200の整数。）で示される有機ポリシロキサン60.0
〜99.5（好ましくは70〜95）重量部と、
一般式
（ただし、R′は炭素数１から21の直鎖または分岐
のアルキル基で、同一であつても異なつていても
よい。）で示されるネオペンチルグリコールエス
テル0.5〜40.0（好ましくは５〜30）重量部の混
合物を主成分とすることを特徴とする。
式（）において、ｎは、粘度と相関々係にあ
り、ｎの値は、25℃における粘度が20cSt〜
100cStを与える値が好ましい。
式（）においてR′は炭素数１から21の直鎖
又は、分岐のアルキル基であるが好ましくは、炭
素数５から15である。
本発明における液圧作用流体組成物は、潤滑
性、ゴム膨潤性及び低温特性に優れた液圧作用流
体、特に自動車用ブレーキ液を与える。
本発明における液圧作用流体組成物は、前記一
般式（）及び（）で表わされる化合物以外
に、一般に使用される酸化防止剤、ゴム老化防止
剤、PH調整剤、防錆剤などの添加剤を単独又は、
併用して使用できる。
以下に、本発明の実施例及び比較例を示す。
尚、本発明は、これらに限定されるものではな
い。例中の部は重量部である。
実施例 １
次の混合割合で液圧作用流体を調合した。
ポリメチルシロキサン、粘度20cSt（25℃）
（PMSiO−20） 90部
ネオペンチルグリコール−イソノナン酸／カプリ
ル酸＝１／1moleジエステル（NPGCi7／８）
10部
実施例 ２
次の混合割合液圧作用流体を調合した。
PMSiO−20 70部
NPGCi7／８ 30部
実施例 ３
次の混合割合で液圧作用流体を調合した。
ポリメチルシロキサン粘度50cSt（25℃）
（PMSiO−50） 90部
ネオペンチルグリコールカプリル酸エステル
（NPGC8） 10部
実施例 ４
次の混合割合で液圧作用流体を調合した。
PMSiO−50 95部
ネオペンチルグリコールカプリン酸エステル
（NPGC10） ５部
実施例 ５
次の混合割合で液圧作用流体を調合した。
ポリメチルシロキサン粘度100cSt（25℃）
（PMSiO−100） 90部
NPGC8 10部
実施例 ６
次の混合割合で液圧作用流体を調合した。
ポリメチルフエニルシロキサン粘度100cSt（25
℃）（PMPSiO−100） 90部
NPGC8 10部
実施例 ７
次の混合割合で液圧作用流体を調合した。
PMSiO−20 80部
ネオペンチルグリコールカプロン酸エステル
（NPGC6） 20部
実施例 ８
次の混合割合で液圧作用流体調合した。
PMSiO−50 80部
ネオペンチルグリコールラウリン酸エステル
（NPGC12） 20部
実施例 ９
次の混合割合で液圧作用流体を調合した。
PMSiO−20 85部
ネオペンチルグリコールミリスチン酸エステル
（NPGC14） 15部
実施例 10
次の混合割合で液圧作用流体を調合した。
PMSiO−50 90部
ネオペンチルグリコール−イソステアリン酸／カ
プリル酸＝１／1moleジエステル（NPGCi18／
８） 10部
実施例 11
次の混合割合で液圧作用流体を調合した。
PMSiO−20 95部
ネオペンチルグリコール−ベヘン酸／カプリル酸
＝１／1moleジエステル（NPGC22／８） ５部
実施例 12
次の混合割合で液圧作用流体を調合した。
PMSiO−50 90部
ネオペンチルグリコール−酢酸／ステアリン酸＝
１／1moleジエステル（NPGC2／18） 10部
実施例 13
次の混合割合で液圧作用流体を調合した。
PMSiO−50 90部
ネオペンチルグリコール−酪酸／パルミチン酸＝
１／1moleジエステル（NPGC4／16） 10部
比較例 １
PMSiO−50 100部
比較例 ２
PMPSiO−100 100部
実施例１〜13、比較例１〜２のサンプルについ
て、物性を測定し、結果を表−１に示した。
The present invention relates to hydraulic fluid compositions, such as automotive brake fluids. More particularly, the present invention relates to hydraulic fluid compositions based on mixtures containing neopentyl glycol esters in organopolysiloxanes. Alkylene glycols have traditionally been used as hydraulic fluids, particularly automotive brake fluids. However, brake fluids using alkylene glycols have various drawbacks. In other words, low-temperature viscosity is high, and in cold regions,
It slows down its usage function and has high hygroscopicity,
Moisture mixed into the system significantly lowers the boiling point of the brake fluid, causing a so-called paper lock phenomenon, which poses a serious safety problem. Organic silicone compounds have been proposed as base materials that solve the drawbacks of alkylene glycols. However, there are problems with the metal materials used in hydraulic systems, such as poor lubricity, the separation of small amounts of water mixed in at low temperatures, and the shrinkage of SBR, which is commonly used as a sealing material. points are pointed out. As a result of intensive study and repeated research on the properties of organic silicone materials, the present inventors found that a mixture containing neopentyl glycol ester in organic polysiloxane significantly improved lubricity, rubber swelling properties, and cold resistance. It has been discovered that an improved and superior hydraulic fluid can be provided, and the present invention has been completed. That is, the hydraulic fluid composition of the present invention has the general formula R 3 SiO (R 2 SiO) o SiR 3 () (wherein R is a methyl group or a phenyl group and may be the same or different). Good. n is from 5
200 integers. ) Organopolysiloxane 60.0
~99.5 (preferably 70-95) parts by weight, and the general formula (However, R' is a linear or branched alkyl group having 1 to 21 carbon atoms, and may be the same or different.) Neopentyl glycol ester 0.5 to 40.0 (preferably 5 to 30 ) is characterized in that the main component is a mixture of parts by weight. In formula (), n is correlated with viscosity, and the value of n is determined when the viscosity at 25°C is 20 cSt ~
Values giving 100 cSt are preferred. In formula (), R' is a straight chain or branched alkyl group having 1 to 21 carbon atoms, preferably 5 to 15 carbon atoms. The hydraulic fluid composition of the present invention provides a hydraulic fluid, particularly a brake fluid for automobiles, with excellent lubricity, rubber swelling properties, and low-temperature properties. In addition to the compounds represented by the above general formulas () and (), the hydraulic fluid composition of the present invention contains commonly used additives such as antioxidants, rubber anti-aging agents, PH regulators, and rust preventives. alone or
Can be used in combination. Examples and comparative examples of the present invention are shown below.
Note that the present invention is not limited to these. Parts in the examples are parts by weight. Example 1 Hydraulic working fluids were prepared in the following mixing proportions. Polymethylsiloxane, viscosity 20cSt (25℃)
(PMSiO-20) 90 parts neopentyl glycol - isononanoic acid/caprylic acid = 1/1 mole diester (NPGCi7/8)
10 Parts Example 2 The following mixing ratio hydraulic working fluids were prepared. PMSiO-20 70 parts NPGCi7/8 30 parts Example 3 Hydraulic working fluid was prepared at the following mixing ratio. Polymethylsiloxane viscosity 50cSt (25℃)
(PMSiO-50) 90 parts Neopentyl glycol caprylate ester (NPGC8) 10 parts Example 4 A hydraulic working fluid was prepared at the following mixing ratio. PMSiO-50 95 parts Neopentyl glycol capric acid ester (NPGC10) 5 parts Example 5 A hydraulic working fluid was prepared at the following mixing ratio. Polymethylsiloxane viscosity 100cSt (25℃)
(PMSiO-100) 90 parts NPGC8 10 parts Example 6 A hydraulic working fluid was prepared at the following mixing ratio. Polymethylphenylsiloxane viscosity 100cSt (25
℃) (PMPSiO-100) 90 parts NPGC8 10 parts Example 7 A hydraulic working fluid was prepared at the following mixing ratio. PMSiO-20 80 parts Neopentyl glycol caproic acid ester (NPGC6) 20 parts Example 8 A hydraulic fluid was prepared at the following mixing ratio. PMSiO-50 80 parts Neopentyl glycol laurate ester (NPGC12) 20 parts Example 9 A hydraulic working fluid was prepared at the following mixing ratio. PMSiO-20 85 parts Neopentyl glycol myristate ester (NPGC14) 15 parts Example 10 A hydraulic working fluid was prepared at the following mixing ratio. PMSiO-50 90 parts neopentyl glycol-isostearic acid/caprylic acid = 1/1 mole diester (NPGCi18/
8) 10-Part Example 11 Hydraulic working fluids were prepared in the following mixing proportions. PMSiO-20 95 parts Neopentyl glycol-behenic acid/caprylic acid = 1/1 mole diester (NPGC22/8) 5 parts Example 12 A hydraulic working fluid was prepared at the following mixing ratio. PMSiO-50 90 parts neopentyl glycol-acetic acid/stearic acid =
1/1 mole diester (NPGC2/18) 10 parts Example 13 A hydraulic working fluid was prepared in the following mixing ratio. PMSiO-50 90 parts neopentyl glycol-butyric acid/palmitic acid=
1/1 mole diester (NPGC4/16) 10 parts Comparative example 1 PMSiO-50 100 parts Comparative example 2 PMPSiO-100 100 parts The physical properties of the samples of Examples 1 to 13 and Comparative Examples 1 to 2 were measured and the results are shown. -1.
【表】
尚、表−１において、動粘度（−40℃）、ゴム
膨潤性、耐寒性は、JIS−Ｋ−2233（1977）の規
定に従つて測定した値である。摩擦係数は曽田式
振子試験機により、平均接触圧力74Kg／mm2、25℃
で測定した値である。
表−１から、ゴム膨潤性、耐寒性、潤滑性が本
発明により、著しく改良されている事が判る。[Table] In Table 1, kinematic viscosity (-40°C), rubber swelling property, and cold resistance are values measured in accordance with the provisions of JIS-K-2233 (1977). The friction coefficient was measured using a Soda pendulum tester at an average contact pressure of 74 Kg/mm 2 at 25°C.
This is the value measured at From Table 1, it can be seen that the rubber swelling properties, cold resistance, and lubricity are significantly improved by the present invention.
Claims (1)
であつても、異なつていてもよい。ｎは５から
200の整数）で示される有機ポリシロキサン60.0
〜99.5重量部と、 一般式 （ただし、R′は炭素数１から21の直鎖または分岐
のアルキル基で、同一であつても異なつていても
よい。）で示されるネオペンチルグリコールエス
テル0.5〜40.0重量部 との混合物を主成分とする液圧作用流体組成
物。[Claims] 1 General formula R 3 SiO (R 2 SiO) o SiR 3 (However, R is a methyl group or a phenyl group and may be the same or different. n is from 5 to
Organopolysiloxane 60.0 (an integer of 200)
~99.5 parts by weight, general formula (However, R' is a linear or branched alkyl group having 1 to 21 carbon atoms, and may be the same or different.) Hydraulic fluid composition as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13655579A JPS5661495A (en) | 1979-10-23 | 1979-10-23 | Hydraulic fluid composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13655579A JPS5661495A (en) | 1979-10-23 | 1979-10-23 | Hydraulic fluid composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5661495A JPS5661495A (en) | 1981-05-26 |
| JPS6239639B2 true JPS6239639B2 (en) | 1987-08-24 |
Family
ID=15177954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13655579A Granted JPS5661495A (en) | 1979-10-23 | 1979-10-23 | Hydraulic fluid composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5661495A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129294A (en) * | 1983-01-17 | 1984-07-25 | Idemitsu Kosan Co Ltd | High temperature lubricant |
| JPH0631390B2 (en) * | 1988-06-20 | 1994-04-27 | 東燃株式会社 | Hydraulic fluid for body attitude control |
-
1979
- 1979-10-23 JP JP13655579A patent/JPS5661495A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5661495A (en) | 1981-05-26 |
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