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Biodegradable lubricant composition

A lubricating oil composition and a biodegradable technology, applied in the field of biodegradable lubricating oil compositions, can solve the problem of no biodegradability, etc., and achieve the effects of excellent biodegradability and excellent oxidation stability

Active Publication Date: 2012-04-18
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since conventional PAO-based lubricants are almost non-biodegradable, their substitutes have been explored

Method used

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  • Biodegradable lubricant composition
  • Biodegradable lubricant composition
  • Biodegradable lubricant composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～2、 comparative example 1～4

[0115] Lubricating oil compositions (test oils) were obtained by blending various additives with various esters as base oils, and various evaluations were performed on them.

[0116] The various esters and additives used as base oils are shown in detail below. About carboxylate, its character is as shown in table 1.

[0117] [Table 1]

[0118]

[0119] (1) Ester A (A component)

[0120] A complex ester consisting of pentaerythritol, sebacic acid, and isostearic acid (Proiolube 1851 manufactured by Uniqema Co., Ltd.) was used.

[0121] (2) Ester B (component A)

[0122] A complex ester composed of pentaerythritol, adipic acid, and a mixed monocarboxylic acid having about 7 to 10 carbon atoms (PAF-450 manufactured by Nisshin Oilio Co., Ltd.) was used.

[0123] (3) Ester C

[0124] A complex ester composed of pentaerythritol, sebacic acid, and oleic acid (Prairiolube 2087 manufactured by Uniqema Co., Ltd.) was used.

[0125] (4) Ester D

[0126] Di(pentaerythritol) olea...

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Abstract

Disclosed is a biodegradable lubricant composition which is obtained by blending (A) an ester that is obtained by reacting a saturated aliphatic carboxylic acid, a linear aliphatic dicarboxylic acid and a polyhydric alcohol, and has a kinematic viscosity at 40 DEG C of not less than 400 mm2 / s but not more than 1,000 mm2 / s and an acid value of not more than 0.5 mgKOH / g, (B) an ester that is obtained by reacting a linear saturated aliphatic carboxylic acid and a polyhydric alcohol, and has an acid value of not more than 0.5 mgKOH / g, and (C) a phosphate ester amine salt that is obtained by reacting an acidic phosphate ester and an alkyl amine.

Description

technical field [0001] The present invention relates to a lubricating oil composition, in particular to a biodegradable lubricating oil composition especially used in a speed reducer for wind power generation. Background technique [0002] In recent years, wind power generation, which effectively utilizes natural energy, has attracted attention due to environmental problems and the depletion of fossil fuels. In wind power generation, since the rotation speed of the impeller is slow, it is very important to increase the power generation efficiency, and a speed reducer is installed inside the power generation device. So-called gear oil is used for the lubrication of the gear mechanism used in the speed increaser, and extremely high lubricity is required. [0003] Conventionally, lubricating oils using PAO (polyalphaolefin) as a base oil have been used as gear oils. On the other hand, wind power generation devices are mostly used in the ocean or in natural environments, so th...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M105/38C10M105/42C10M137/08C10N20/00C10N30/00C10N30/06C10N30/10C10N40/04
CPCC10M2207/301C10M2203/1006C10M2207/2825C10M2219/066C10N2230/02C10M2229/02C10M2207/289C10M2215/28C10M2223/043C10N2220/022C10N2240/02C10M2207/2815C10M169/04C10N2240/04C10M2205/0285C10M2223/047C10M2215/086C10M2209/104C10N2230/10C10M2215/223C10N2230/06C10M2207/2895C10N2230/64C10N2220/10C10M2209/102C10M2207/026C10N2020/02C10N2020/081C10N2030/02C10N2030/06C10N2030/10C10N2030/64C10N2040/02C10N2040/04C10M2207/2835C10M2209/105
Inventor 冈田太平藤浪行敏大野拓矢
Owner IDEMITSU KOSAN CO LTD