Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lubricating oil composition for internal combustion engines and method for producing same

A lubricating oil composition and technology for internal combustion engines, applied in lubricating compositions, the petroleum industry, base materials, etc., can solve the problems of internal combustion engines such as adverse effects on fuel efficiency, high viscosity temperature dependence, and poor fluidity of lubricating oils, and achieve excellent low temperature flow High stability, high shear stability, excellent heat and oxidation stability

Pending Publication Date: 2021-10-29
MITSUI CHEM INC
View PDF31 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a viscosity modifier with a relatively low molecular weight is used, but although the decrease in viscosity caused by shearing is suppressed, the temperature dependence of the viscosity is large due to the poor ability to increase the viscosity index. ℃) lubricating oil has poor fluidity, and the stirring resistance at the start of the internal combustion engine is extremely large compared with the engine oil for ordinary cars, which has a negative impact on the fuel efficiency of the internal combustion engine

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
  • Lubricating oil composition for internal combustion engines and method for producing same
  • Lubricating oil composition for internal combustion engines and method for producing same
  • Lubricating oil composition for internal combustion engines and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0299] As the lubricating oil base oil, Mineral Oil-A and Mineral Oil-B were used as Mineral Oil (A), and as the ethylene-α-olefin copolymer (C), the copolymer obtained in Polymerization Example 1 (Polymer 1) was used , using a conventional method to mix them with DI compounding agent (DI) and pour point depressant (PPD) to prepare a lubricating oil composition for internal combustion engine oil. Table 3 shows the addition amount of each component, the physical properties of the obtained lubricating oil composition, and the like.

Embodiment 2～6、 comparative example 1～5

[0301] A lubricating oil composition was prepared in the same manner as in Example 1 except that the types and addition amounts of the components were changed as described in Table 3. Table 3 shows the physical properties and the like of the obtained lubricating oil composition.

[0302] [table 3]

[0303]

Embodiment 7

[0305] As lubricating oil base oil, mineral oil-D and mineral oil-E are used as mineral oil (A), polymer 1 is used as ethylene-α-olefin copolymer (C), and they are mixed with DI complexing agent by conventional method (DI), and a pour point depressant (PPD) are mixed to prepare a lubricating oil composition for internal combustion engine oil. Table 4 shows the addition amount of each component, the physical properties of the lubricating oil composition obtained, and the like.

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
pour pointaaaaaaaaaa
pour pointaaaaaaaaaa
pour pointaaaaaaaaaa
Login to View More

Abstract

To provide a lubricating oil composition for internal combustion engines, which has excellent fluidity in a low temperature environment, while maintaining high shear stability, and which has low agitation resistance with respect to an engine, while exhibiting excellent stability of thermal oxidation resistance. A lubricating oil composition for internal combustion engines, which contains a lubricant base oil and a liquid random copolymer of ethylene and an alpha-olefin, said random copolymer being produced using a specific catalyst, and which is configured such that: the kinematic viscosity at 100 degC is 12.5 mm2 / s or more but less than 26.1 mm2 / s; and the lubricant base oil is composed of a mineral oil that has a kinematic viscosity at 100 degC of 2-10 mm2 / s, a viscosity index of 95 or more and a pour point of -10 degC or less and / or a synthetic oil that has a kinematic viscosity at 100 degC of 1-10 mm2 / s, a viscosity index of 120 or more and a pour point of -30 degC or less.

Description

technical field [0001] The present invention relates to a lubricating oil composition for an internal combustion engine and a manufacturing method thereof, especially a lubricating oil composition for a high output internal combustion engine and a manufacturing method thereof. Background technique [0002] Petroleum products generally have so-called temperature dependence of viscosity, that is, when the temperature changes, the viscosity changes greatly. For example, in lubricating oils used in automobiles and the like, it is preferable that the temperature dependence of the viscosity is small. Therefore, in lubricating oil, in order to reduce the temperature dependence of viscosity, a certain polymer soluble in the lubricating oil base can be used as a viscosity modifier (also called a viscosity index improver). In recent years, OCP (olefin copolymer) has been widely used as such a viscosity modifier, and various improvements as exemplified in Patent Document 1 have been m...

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): C10M169/04C10M101/02C10M105/32C10M143/00C10M171/02C10N20/00C10N20/02C10N20/04C10N30/02C10N30/06C10N30/10C10N40/25
CPCC10M2205/0225C10M2203/1025C10N2020/02C10N2030/02C10M2205/0285C10M2203/1006C10M2207/026C10M2205/026C10N2030/08C10N2030/10C10N2040/25C08F210/16C08F4/65912C08F4/65908C10M169/04C10M2205/022C10M2207/2825C10N2020/011C10N2070/00C10N2020/04C10N2020/065C10N2040/252C10M2205/0245C08F210/06C08F2500/02C08F2500/03C08F2500/17C08F2500/27C08F2/06C08F4/65927C10M2205/028C10M143/00C10M101/02C10M105/32C10M171/02C08F4/6592C10N2030/06C10N2030/52C10M107/04C10M111/04
Inventor 阿部昌太
Owner MITSUI CHEM INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com