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1-octene, 1-decene, 1-dodecene ternary copolymer and lubricant composition containing same

A dodecene terpolymer, dodecene technology, applied in lubricating compositions, petroleum industry, base materials, etc., can solve the problem of undisclosed selective synthesis method, insufficient flow point, low molecular weight polymer and other problems, to achieve the effect of excellent oxidation stability

Inactive Publication Date: 2014-02-05
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, Patent Document 3 is known as an example of producing an α-olefin copolymer using a metallocene catalyst, but only a low-molecular-weight polymer is obtained, and there are problems such as insufficient pour point. High viscosity synthetic lubricants of alpha-olefin copolymers are unknown
[0005] On the other hand, as a method for suppressing the oxidation of polyα-olefins, for example, Patent Document 4 discloses a polymer having a regular "comb structure" formed by repeated 1, 2 insertion of monomers through metallocene catalyst polymerization. , which records that when the double bond remains, the oxidation of the double bond leads to the loss of lubricating properties
Patent Document 1 hints at the correlation between tertiary carbon and oxidation stability, but does not disclose experimental data to prove it
In addition, although focusing on the 1,2-disubstituted structure of the polymer, it only measured the regular structure formed by the 1,2 insertion of the monomer shown in Patent Document 4 from another perspective, and did not disclose the selectivity. geosynthetic method

Method used

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  • 1-octene, 1-decene, 1-dodecene ternary copolymer and lubricant composition containing same
  • 1-octene, 1-decene, 1-dodecene ternary copolymer and lubricant composition containing same
  • 1-octene, 1-decene, 1-dodecene ternary copolymer and lubricant composition containing same

Examples

Experimental program
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Effect test

Embodiment

[0110] Next, the present invention will be described in more detail using examples, but the present invention is not limited to these examples.

[0111] The evaluation of the physical properties of the α-olefin polymer was carried out by the following methods.

[0112] (1) Flow point

[0113] Measured in accordance with JIS K 2269.

[0114] (2) Kinematic viscosity and viscosity index

[0115] The kinematic viscosity is measured according to JIS K 2283. Viscosity index is calculated from kinematic viscosity according to JIS K 2283.

[0116] (3) Number average molecular weight and molecular weight distribution (Mw / Mn)

[0117] Using JASCO GPC-900 (column; TOSOH TSK-GEL MULTIPORE HXL-M (2 pieces) + Shodex KF801 (1 piece)) device, under the conditions of solvent; tetrahydrofuran, temperature; 40°C, and polystyrene conversion Get it.

[0118] (4) Meso triad fraction (mm)

[0119] Using the method described in [Macromolecules24, 2334 (1991); Polymer, 30, 1350 (1989)], using ...

manufacture example 1

[0134] Production Example 1 [Production of (1,1'-dimethylsilylene)(2,2'-dimethylsilylene)-bis(cyclopentadienyl)zirconium dichloride]

[0135] About 13.8 g (600 mmol) of metallic Na and 400 ml of dry THF (tetrahydrofuran) were added to a 1000 ml three-necked flask replaced with nitrogen, and stirred at 0°C. After 5 minutes, 1 to 2 ml of cyclopentadiene was added dropwise thereto, and when generation of hydrogen was completed, 1 to 2 ml of cyclopentadiene was added again, and the process was repeated to add a total of 50 ml (600 mmol) of cyclopentadiene. The reaction solution changed from colorless and transparent to light pink. After THF was distilled off under reduced pressure, the crystals were washed twice with hexane and dried under reduced pressure to obtain cyclopentadienyl sodium as a pink powder.

[0136] 457 ml of THF was added to 43.0 g (480 mmol) of cyclopentadienyl sodium at 0° C., followed by stirring. After cooling to -78°C, 29.2ml (480mmol) of dichlorodimethyls...

Embodiment 1-1

[0143] A stainless steel autoclave with an internal volume of 1 liter was fully dried and replaced with nitrogen, and 146 ml of 1-dodecene, 183 ml of 1-decene, and 71 ml of 1-octene were added, followed by addition of triisobutylaluminum 0.2 mmoles, the temperature was raised to 105°C. Put into the catalyst mixed solution prepared separately (in a 10 ml glass Schlenk bottle, add 0.1 mmol of triisobutylaluminum (2 mmol / ml toluene solution; 0.05 ml) under nitrogen atmosphere, obtain in Production Example 1 (1,1'-dimethylsilylene)(2,2'-dimethylsilylene)-bis(cyclopentadienyl)zirconium dichloride 10 μmol (10 μmol / mL of toluene solution; 1 mL) and powdered N, N-dimethylanilinium tetrakis (pentafluorophenyl) borate 0.012 mmol (11.5 mg), after stirring at room temperature for about 1 minute, add 1 -0.5 ml of octene, and further stirred at room temperature for 1 hour) After 1 ml of hydrogen, 0.05 MPaG was introduced to initiate polymerization. After 60 minutes at 105°C, add 1 ml of ...

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Abstract

Provided is a 1-octene, 1-decene, 1-dodecene ternary copolymer synthesized using a double-cross-linked metallocene, the copolymer being an alpha olefin copolymer which is effective as a high-viscosity lubricant, and has excellent viscosity, low-temperature properties and oxidation stability. Also provided is a lubricant containing said copolymer.

Description

technical field [0001] The present invention relates to 1-octene-1-decene-1-dodecene terpolymers and lubricating oil compositions containing them. Background technique [0002] Hitherto, as the characteristics required for lubricating oils for automobiles and industrial machinery, high viscosity has been cited from the viewpoint of lubricating performance, but in recent years, due to environmental concerns, further low fuel consumption / In order to save energy and increase life, synthetic lubricating oils with better viscosity characteristics (viscosity index), low-temperature characteristics (low-temperature fluidity), and oxidation stability than currently used polyα-olefins are urgently desired. [0003] As a hydrocarbon-based synthetic lubricating oil, α-olefin polymers obtained from shorter-chain α-olefins have the disadvantage of low viscosity index, while α-olefin polymers obtained from longer-chain α-olefins have a pour point Due to such disadvantages, it is appropr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/14C08F4/6592C10M107/10C10N20/04C10N30/02C10N30/10C10N40/00C10N40/06C10N40/08C10N40/12C10N40/20C10N40/25C10N40/30C10N50/10
CPCC10N2220/021C10N2240/04C10M2205/0285C08F4/65908C10N2240/30C10N2220/025C10N2230/02C10N2230/10C10N2240/402C10N2240/08C10N2240/14C10N2220/026C10N2220/023C08F210/16C10N2250/10C08F210/14C10N2220/022C10N2270/00C10N2240/104C10N2240/102C10N2240/40C10N2240/401C10N2230/54C10N2240/10C10M107/10C08F2410/01C10N2020/02C10N2020/04C10N2030/02C10N2030/10C10N2040/04C10N2040/08C10N2040/20C10N2040/22C10N2040/24C10N2040/25C10N2040/30C10N2050/10C10N2070/00C10N2020/011C10N2020/065C10N2020/067C10N2030/54C10N2040/135C10N2040/252C10N2040/255C08F2500/02C08F2500/03C08F2500/17C08F4/65904C08F4/65927
Inventor 清水瞳片山清和野田英昭冈野匡贵
Owner IDEMITSU KOSAN CO LTD
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