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Automatic transmission fluid composition using synthetic oil as base oil

A technology of automatic transmission fluid and composition, which is applied in the direction of lubricating composition, petroleum industry, additives, etc., and can solve problems such as insufficient anti-wear performance

Active Publication Date: 2008-11-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In automatic transmission fluid, there is a contradiction between friction performance and anti-wear performance. By adopting a new combination, the present invention overcomes the defect of insufficient anti-wear performance of automatic transmission fluid in the past, and enhances automatic transmission fluid on the basis of maintaining the original friction characteristics. Anti-wear performance of liquid

Method used

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  • Automatic transmission fluid composition using synthetic oil as base oil
  • Automatic transmission fluid composition using synthetic oil as base oil
  • Automatic transmission fluid composition using synthetic oil as base oil

Examples

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preparation example Construction

[0047] The preparation method of phosphate amine salt A in the example is: get 195g di-n-butyl phosphite (trade name is T304), add 150g ethoxylated tallow amine (Ethomeen T-12, Akzo Nobel chemical company produces), at 80 Stirring at ±5° C. for 2 h to obtain the phosphate ester amine salt.

[0048] The preparation method of phosphate amine salt B in the example is: get 350g di-n-butyl phosphite, add 425g ethoxylated coconut oil alkylamine (Ethomeen C-15, produced by Akzo Nobel chemical company), at 80 ± 5 ℃ Stir at high temperature for 2 h to obtain the phosphate ester amine salt.

[0049] The preparation method of phosphorous boronated succinimide in the example is: add 195g monopolyisobutenyl succinimide T151, 21.5g di-n-butyl phosphite, 7.8g boric acid, 11g ethoxylated tallow amine (Ethomeen T-12), 1g n-butanol, 2.2g water, blow nitrogen, stir at 95±5°C for 3 hours, gradually raise the temperature to 110°C, remove water and n-butanol under 40mmHg pressure, and obtain phosp...

example 1

[0051] An automatic transmission fluid composition, based on the total weight of the composition, comprising the following components:

[0052] Component (a) phosphate ester amine salt A 0.6%

[0053] Component (b) Monopolyisobutenyl succinimide T151 2%

[0054] Phosphorus boro-succinimide 4%

[0055] Component (c) 2,6-di-tert-butyl-p-cresol T501 0.3%

[0056] Alkyl diphenylamine T534 0.5%

[0057] Base number synthetic calcium sulfonate T105 in component (d) 0.7%

[0058] Component (x) GTL synthetic oil (100°C kinematic viscosity 6.0mm 2 / s) margin

example 2

[0060] An automatic transmission fluid composition, based on the total weight of the composition, comprising the following components:

[0061] Component (a) phosphate ester amine salt A 0.6%

[0062] Component (b) bis-polyisobutenyl succinimide T152 2%

[0063] Boronated succinimide (grade T152B) 4%

[0064] Component (c) 2,6-di-tert-butyl mixed phenol T502 0.2%

[0065] Alkyl diphenylamine T534 0.2%

[0066] Base number sulfurized calcium alkylphenate LZL115A in component (d) 0.2%

[0067] Component (e) polymethacrylate T602D 3%

[0068] Component (i) dodecenylsuccinic acid T746 0.1%

[0069] Component (x) GTL synthetic oil (100°C kinematic viscosity 4.0mm 2 / s) margin

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Abstract

The invention provides an automatic transmission fluid combination comprising base oil of main amount and additive of minor amount. The combination comprises the following components by taking the gross weight of the combination as benchmark: (a) at least one amine salt of organic phosphate; (b) at least one dispersant; (c) at least one antioxidant; (d) at least one detergent; (x) allowance of the base oil of synthesized lubricating oil. Due to the combined use of the amine salt of organic phosphate of a new structure with the ashless dispersant, the antioxidant and the detergent, the automatic transmission fluid provided by the invention has good antiwear performance and friction property, thus according with Dexron VI and Allison C-4 specification requirements.

Description

technical field [0001] The present invention relates to a lubricating oil composition, more precisely an automatic transmission fluid composition for an automatic transmission system of a vehicle. Background technique [0002] Automatic transmission fluid is a multi-functional and multi-purpose fluid, which is mainly used in the automatic transmission system of cars and light trucks, and can also be used in the transmission box and power steering system of large loaded vehicles. Since the automatic transmission is equipped with a hydraulic torque converter, a gear mechanism, a hydraulic mechanism, a wet clutch, etc., and only one kind of oil is used to lubricate and transmit energy, the requirements for automatic transmission fluid are very high. General automatic transmission fluids need to add viscosity index improvers, detergents, dispersants, antioxidants, extreme pressure antiwear agents, rust inhibitors, metal deactivators, friction modifiers, antifoaming agents, swell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M137/08C10M133/36C10M135/10C10M135/36C10N30/06C10N30/04C10N30/10C10N40/04
Inventor 李勇段庆华黄作鑫兰小燕唐俊杰
Owner CHINA PETROLEUM & CHEM CORP
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