Lubricant oil composition for compressor oil and method for preparing same

A technology of lubricating oil composition and compressor oil, applied in the directions of lubricating composition, petroleum industry, base material, etc., can solve problems such as difficulty in forming oil film, damage to heat resistance, etc.

Pending Publication Date: 2021-10-29
MITSUI CHEM INC
View PDF42 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the viscosity of the base oil decreases, the viscosity at high temperature also decreases, so it is difficult to form an oil film at high temperature, and as a result, the heat resistance is impaired
In order to achieve both low torque at the low temperature side close to the operating temperature and oil film formation at high temperatures, research has been conducted on the use of synthetic oils (polyalphaolefins) that have excellent temperature-viscosity characteristics instead of conventionally used mineral oils, but there are still studies room (patent document 2)

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 oil composition for compressor oil and method for preparing same
  • Lubricant oil composition for compressor oil and method for preparing same
  • Lubricant oil composition for compressor oil and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0300] Synthetic oil-A was used as the lubricating base oil (A), and the copolymer (polymer 2) obtained in Polymerization Example 2 was used as the ethylene-α-olefin copolymer (B), and the total of these and the antioxidant was 100 % by mass to prepare a lubricating oil composition for compressor oil. The addition amount of each component is shown in Table 2. Table 2 shows the physical properties of the lubricating oil composition.

Embodiment 2～16、 comparative example 1～7

[0302] Except having changed the kind and addition amount of a component as described in Table 2, it carried out similarly to Example 1, and prepared the lubricating oil composition for compressor oils. Table 2 shows the physical properties and the like of the obtained lubricating oil composition.

[0303] [table 2-1]

[0304]

[0305] [Table 2-2]

[0306]

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 lubricant oil composition which is for a compressor oil, and which has not only extremely favorable temperature viscosity properties but also good heat-resistant oxidation stability. This lubricant oil composition for a compressor oil has a kinematic viscosity at 40 degC of 10-300 mm2 / s, and contains: 10-99 mass% of a lubricant base oil (A) having a kinematic viscosity at 100 degC of 1-14 mm2 / s, a viscosity index of 100 or more, and a pour point of 0 degC or less; 1-90 mass% of a liquid-phase random copolymer ethylene-alpha-olefin copolymer (B) formed of ethylene and alpha-olefin and prepared by using a specific catalyst (the sum of (A) and (B) is 100 mass%).

Description

technical field [0001] The present invention relates to a lubricating oil composition for compressor oil and a production method thereof. Background technique [0002] Compared with the reciprocating gas compressor, the rotary gas compressor has less vibration, and can reduce the temperature of the discharge gas by operating while injecting a large amount of lubricating oil into the compression part. In addition, among rotary gas compressors, oil-cooled screw compressors have replaced the reciprocating compressors used in the past due to their high efficiency, miniaturization, low noise, long-term continuous operation, and low maintenance costs, and are widely used in the industry. use. Such an oil-cooled screw compressor tends to increase the pressure of the discharge pressure and free discharge (prevent the formation of condensed water), and as a whole, the discharge temperature tends to increase. As for the lubricating oil for compressor oil, it is important for heat res...

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 & AuthorityApplications(China)
IPC IPC(8): C10M143/00C10M105/32C10M107/02C10M169/04
CPCC10N2040/30C10N2020/02C10N2030/02C10M2205/022C10M2205/0285C10M2207/2835C10M2207/026C10N2030/10C08F4/65912C08F4/65908C08F210/06C08F210/16C10M169/04C10M2203/1006C10M2207/289C10M2203/1025C10M2209/084C10N2020/011C10N2070/00C10N2020/04C10N2020/065C10N2030/08C10M2205/028C08F2/06C08F2500/02C08F2500/03C08F2500/17C08F4/65927C10M2205/024C10M2205/026C10M143/00C10M105/32C10M107/02C10M101/02C10M171/02C08F4/6592C10N2030/40C08F2420/01C10M143/02C10M169/041
Inventor阿部昌太
OwnerMITSUI CHEM INC