Lubricant composition for internal combustion engine
一种润滑油组合物、内燃机的技术，应用在润滑组合物、石油工业、基料等方向，能够解决油消耗增大、起不到稠化内燃机油的作用等问题，达到蒸发性小、氧化稳定性优异、低温流动性优异的效果
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Embodiment
[0149] Next, although an Example demonstrates this invention more concretely, this invention is not limited to these examples.
[0150] The properties and performances of the lubricating oil compositions obtained in each example were determined by the following methods.
[0151] (1) Kinematic viscosity
[0152] Based on JIS K2283, the kinematic viscosity at 40 degreeC and 100 degreeC was measured.
[0153] (2) Viscosity index
[0154] Measured according to JIS K2283.
[0155] (3) acid value
[0156] Measured according to JIS K2501.
[0157] (4) Base value
[0158] Measured according to JIS K2501 (hydrochloric acid method).
[0159] (5) CCS viscosity
[0160] The viscosity at -35 degreeC was measured according to JISK2010.
[0161] (6) NOACK evaporation test
[0162] Measured under the conditions of 250° C. and 1 hour according to the standard PI-5S-41-93 of the Petroleum Institute.
[0163] (7) ISOT oxidation stability test
[0164] Based on the oxidation stability ...
preparation example 1
[0165] Preparation Example 1 The preparation of α-olefin oligomer hydrogenated product with 30 carbon atoms
[0166] (a) Oligomerization of decene
[0167]Into a three-necked flask with an internal volume of 5 L, 4 L (21.4 moles) of decene monomer (manufactured by Idemitsu Kosan Co., Ltd.: Linialen 10) was added under an inert gas flow, and dicyclopentadiene dissolved in toluene was further added. zirconium dichloride (complex mass: 1168 mg: 4 mmol) and methylaluminoxane (in terms of Al: 40 mmol) similarly dissolved in toluene. These mixtures were kept at 40° C. and stirred for 20 hours, and then 20 ml of methanol was added to stop the oligomerization reaction. Then, the reaction mixture was taken out from the autoclave, 4 L of a 5 mol / L aqueous sodium hydroxide solution was added thereto, and after forced stirring at room temperature for 4 hours, a liquid separation operation was performed. The upper organic layer was taken out, and unreacted decene and by-product decene is...
Embodiment 1～4 and comparative example 1
[0171] The base oils and additives shown in Table 1 were mixed at the ratios shown in Table 1 to prepare lubricating oil compositions for internal combustion engines, and their properties and performance were obtained. The results are shown in Table 1.
[0172] [Table 1]
[0173]
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