Lubricant composition

A lubricating oil composition and the technology of the composition, which are applied in the directions of lubricating compositions, petroleum industry, etc., can solve problems such as adverse effects, and achieve the effects of excellent friction characteristics, excellent sludge inhibition, and excellent water separation.

Active Publication Date: 2015-11-25
JX NIPPON OIL & ENERGY CORP
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, good water-separation properties are required for hydraulic fluids that may be mixed with water during use, so the use of succinimide, calcium sulfonate, etc., which adversely affect the water-separation performance, cannot be a fundamental solution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lubricant composition
  • Lubricant composition
  • Lubricant composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10 and comparative example 1～2

[0318] Each lubricating oil composition of the present invention shown in the Examples of Table 1 was prepared. The contents of base oil and additives are based on the total amount of the composition. As the lubricating oil for comparison, a commercially available Zn-based hydraulic oil (manufactured by ExxonMobil Corporation; trade name: DTEOIL25) as Comparative Example 1 and a commercially available turbine oil (manufactured by JXNIPPONOIL & ENERGY CORPORATION; trade name: FBKTurbineOil46) as Comparative Example 2 were used. . The following evaluation tests were performed on these lubricating oil compositions, and the results are shown in Table 1 together.

[0319] [Thermal Stability Test]

[0320] According to the "lubricating oil thermal stability method" stipulated in JISK2540, take 50ml of sample oil into a 50ml capacity beaker, add a coil-shaped catalyst of iron and copper, and perform a certain period of time (10 days, 20 days) in an air constant temperature bath at ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
viscosity indexaaaaaaaaaa
viscosity indexaaaaaaaaaa
carbon numberaaaaaaaaaa
Login to view more

Abstract

The invention aims to provide a lubricant composition which has excellent attrition resistance and excellent sludge inhibition and is applicable to hydraulic operating oil and the like used at high temperature and high pressure. According to the solving means, the lubricant composition is characterized in that mineral oil and/or synthetic oil are used as base oil; the lubricant composition is prepared from 0.01-3 mass percent of antioxidant (A) and 0.01-10 mass percent of phosphorous compounds (B), based on the total amount of the composition; and the kinematic viscosity of the composition at 40 DEG C is 1.5-1000mm<2>/s, and the lubricant composition does not contain zinc dithiophosphate substantially.

Description

technical field [0001] This invention relates to lubricating oil compositions. Background technique [0002] Conventionally, lubricating oil for hydraulic working equipment (hereinafter referred to as "hydraulic working oil") has been widely used in the fields of construction machinery and the like. As a hydraulic fluid, in order to impart wear resistance, an wear resistance additive such as zinc dithiophosphate is usually blended. [0003] However, in recent years, hydraulic working oils have been required to have higher characteristics, and it is difficult for the above-mentioned hydraulic working oils to satisfy the requirements. Therefore, development of new hydraulic working oils has been desired. [0004] For example, in recent years, in fields such as construction machinery, hydraulic working devices have been reduced in size and increased in speed, and hydraulic working devices have been increased in pressure. Along with this, higher wear resistance is required for...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N30/04C10N40/08C10N40/04C10N40/02
Inventor 菅原常年
Owner JX NIPPON OIL & ENERGY CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap