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Automatic transmission fluid composition and manufacturing method thereof

A technology of automatic transmission fluid and composition, which is applied in the direction of lubricating composition, additives, petroleum industry, etc., and can solve the problems of shortening the working performance of automatic transmission system and insufficient attention to antirust performance, etc.

Active Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when these prior art compounds are used in automatic transmission fluids, there is still room for improvement in the high-temperature oxidation resistance, friction characteristics and anti-wear properties of the oil.
In addition, in addition to the adverse effects of deposits, corrosion can also seriously shorten the performance of automatic transmission systems.
The existing technology does not pay enough attention to the anti-rust performance

Method used

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  • Automatic transmission fluid composition and manufacturing method thereof
  • Automatic transmission fluid composition and manufacturing method thereof
  • Automatic transmission fluid composition and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0243] In a 500ml four-neck flask equipped with a stirrer, thermometer, condenser and dropping funnel, add 58.79g (0.323mol) of 2-tert-butyl-6-mercaptophenol, 6.88g (0.048mol) of boron trifluoride Ethyl ether (catalyst for alkylation reaction), 100ml of n-hexane solvent and 161.61g (0.162mol) of polyisobutene (Mn=1000, manufactured by Jihua Group Fine Chemicals Co., Ltd.) were reacted at 80°C for 2h. After the reaction, the reaction mixture was washed once with 5% potassium hydroxide solution by mass fraction, and washed to neutrality with hot water to remove the catalyst, and then the solvent and unreacted phenol were distilled off under reduced pressure to obtain polyisobutylene mercaptophenol, hydroxyl The value was 53.49 mgKOH / g. For the determination of hydroxyl value, refer to the acetic anhydride method in GB / T7383-2007.

[0244] An example reaction is as follows:

[0245]

[0246] From the proton nuclear magnetic spectrum analysis of the polyisobutylene mercaptoph...

Embodiment 2

[0248]

[0249]Under a nitrogen protection atmosphere, in a 250ml four-necked flask equipped with a stirrer, a thermometer, a condenser and a dropping funnel, add 30.58 grams (156 mmol) of 2-mercapto-4-methyl-6-methylphenol, 9.29 grams ( 112mmol) formaldehyde, 32.38g (176mmol) N-phenyl-p-phenylenediamine and 100mL toluene, stirred rapidly, and reacted at 100°C for 2h. After the reaction was finished, the solvent and a small amount of water generated were distilled off under reduced pressure, and the shielded phenol product with the structure shown in the title was obtained through column chromatography separation.

[0250] Product characterization data are as follows:

[0251] 1 H NMR (300MHz, CDCl 3 ): δ1.40(9H), 2.37(3H), 4.02(1H), 4.83(2H), 6.95-7.00(12H), 7.26(2H), 7.55(1H);

[0252] 13 C NMR (75MHz, CDCl 3 ): δ21.2, 30.1, 34.1, 49.9, 114.3, 118.9, 119.4, 121.8, 122.2, 125.8, 126.5, 129.5, 131.8, 132.3, 133.5, 143.3, 150.8;

[0253] C 24 h 28 N 2 OS calcd for C...

Embodiment 3

[0255]

[0256] Under nitrogen protection atmosphere, in the 250ml four-necked flask that stirrer, thermometer, condenser tube and dropping funnel are equipped with, add 31.65 grams (133mmol) 2,6-di-tert-butyl-4-mercaptophenol, 1.86 grams (62mmol ) formaldehyde, 28.15 grams (153 mmol) of N-phenyl-p-phenylenediamine, 0.75 grams (7.5 mmol) of hydrochloric acid and 150 mL of isopropanol, stirred rapidly, and reacted at 25 ° C for 24 h. After the reaction was finished, the solvent and a small amount of water generated were distilled off under reduced pressure, and the shielded phenol product with the structure shown in the title was obtained through column chromatography separation.

[0257] Product characterization data are as follows:

[0258] 1 H NMR (300MHz, CDCl 3 ): δ1.36-1.54(18H), 3.75(1H), 4.80(2H), 5.32(1H), 6.80(2H), 6.97(5H), 7.17(2H), 7.26(2H), 7.55(1H) ;

[0259] 13 C NMR (75MHz, CDCl 3 ): δ29.6, 34.6, 51.2, 119.4, 121.8, 126.5, 129.5, 131.4, 136.6, 144.5, 1...

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Abstract

The invention relates to an automatic transmission fluid composition including a shielding phenol compound, an anti-wear reagent at extreme pressure, a dispersing agent, a metal passivating agent, an anti rust agent, an ashless friction modifier and a major amount of lube base oil; the structure of the shielding phenol compound is as shown in formula (I), and all groups are defined in the specifications. The automatic transmission fluid composition can meet increasingly stringent oxidation resistance requirements of higher-specification products in modern times, and show excellent cleaning dispersing performance, friction properties, wear resistance, corrosion resistance and rust resistance.

Description

technical field [0001] The present invention relates to an automatic transmission fluid composition. In particular, the present invention relates to an automatic transmission fluid composition meeting the requirements of the Dexron VI and Allison C-4 specifications. Background technique [0002] Because the automatic transmission system can make the car automatically adapt to the change of driving resistance, improve the power performance of the car, start without impact, small vibration when changing speed, comfortable ride, convenient driving, and can make the engine in the best working condition, and can also start when overloaded. Features such as protective effect, automatic transmission system has been widely used in automobiles. Automotive automatic transmission fluid (ATF) is mainly used in the automatic transmission system of cars and light trucks, but also in the transmission box of large loaded vehicles, power steering system, and transfer case of agricultural ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M135/24C10M135/32C10M135/36C10M135/12C10N30/10C10N30/06C10N30/04C10N40/04
CPCC10M129/34C10M129/74C10M135/12C10M135/24C10M135/32C10M135/36C10M137/02C10M137/105C10M143/00C10M143/06C10M169/044C10N2030/04C10N2030/06C10N2030/10C10N2040/04
Inventor 苏朔段庆华张辉
Owner CHINA PETROLEUM & CHEM CORP
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