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lubricant composition

A technology of lubricant composition and thickener, which is applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of inability to form oil film, wear, sliding sound, etc., and achieve the effect of sufficient fretting wear resistance

Active Publication Date: 2015-11-18
NOK KLUEBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the base oil and thickener are all fluorine-based substances, they are expensive and have poor compatibility with metals, resins, rubber, etc. as lubricating materials.
In addition, under high load conditions, the oil film required for lubrication cannot be formed, which may cause wear or sliding noise, etc.

Method used

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  • lubricant composition

Examples

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Embodiment

[0048] Examples of the present invention are described below.

[0049] [Preparation of lubricant composition]

[0050]

[0051] · PFPE: the above general formula (III)

[0052] Structural formula CF 3 O(CF 2 CF 2 o) y (CF 2 o) x CF 3 y / x>1

[0053] Kinematic viscosity at 40°C: 85mm 2 / s

[0054] ・Polyol ester (A): Unistar H334R (manufactured by NOF Corporation) fatty acid ester of trimethylolpropane

[0055] Kinematic viscosity at 40°C: 19.6mm 2 / s

[0056] ・Polyol ester (B): Priolube 2046 (manufactured by Uniqema) fatty acid ester of neopentyl glycol

[0057] Kinematic viscosity at 40°C: 390mm 2 / s

[0058] Aromatic ester: Trioctyl trimellitate

[0059] Kinematic viscosity at 40°C: 48mm 2 / s

[0060] · Diester: bis(2-ethylhexyl) sebacate

[0061] Kinematic viscosity at 40°C: 15mm 2 / s

[0062]

[0063] PTFE: emulsion polymerization type

[0064] The average primary particle size is about 0.1μm

[0065]

[0066] ・Corrosion inhibitor: IrgacorDSSG (m...

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Abstract

The invention provides a lubricant combination which can fully resist final motion and abrasion at high temperatures and is characterized by comprising PFPE and polyol ester as a base oil, and fluororesin as a thickener agent; the weight ratio between the PFPE and polyol ester is 86 / 14-94 / 6; the use level of the fluororesin is 10-40 weight % relative to the lubricant combination.

Description

technical field [0001] The present invention relates to lubricant compositions. More specifically, it relates to a lubricant composition capable of maintaining sufficient fretting resistance in a high-temperature environment. Background technique [0002] Fluorine-containing grease has excellent high-temperature durability, oxidation stability, chemical resistance, and low-temperature performance, and can be used under very severe conditions. However, since the base oil and the thickener are all fluorine-based substances, they are expensive and have poor compatibility with metals, resins, rubber, etc. as lubricating materials. In addition, under high load conditions, the oil film required for lubrication cannot be formed, which may cause wear and sliding noise. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2003-96480 [0006] Patent Document 2: Japanese Patent Laid-Open No. 2004-26941 [0007] Patent D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/02C10N40/02
Inventor 阿部沙织志村明彦
Owner NOK KLUEBER CO LTD
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