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Lubricant composition

A technology of lubricating oil composition and compound, which is applied in the fields of lubricating oil composition and tenter device, and can solve problems such as poor lubrication of sliding parts and reduced fluidity

Inactive Publication Date: 2020-10-30
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, high-viscosity lubricating oils have fluidity problems. Especially when used at high temperatures for a long time, the fluidity may decrease, partially solidify and form solidified sludge, which prevents the supply of lubricating oil and leads to poor lubrication of sliding parts.

Method used

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  • Lubricant composition
  • Lubricant composition
  • Lubricant composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~7

[0158] Embodiment 1~7, comparative example 1~4

[0159] For the mixed base oil obtained by mixing the alkylnaphthalene "AN(1)" shown below and the ester compound "POE(1)" at the content ratio (mass ratio) shown in Table 1, the The following antioxidants and extreme pressure agents were added as additives in the compounding amount of , and mixed thoroughly to prepare lubricating oil compositions.

[0160] Details of the ingredients used to prepare these lubricating oil compositions are shown below.

[0161] (alkyl naphthalene)

[0162] ・"AN(1)": A mixture of alkylnaphthalene having 1 to 5 alkyl groups of 14 carbon atoms (alkyl naphthalene having 3 to 4 alkyl groups of 14 carbon atoms as the main component), number average Molecular weight = 300~1200, kinematic viscosity at 40°C = 177mm 2 / s, viscosity index=118.

[0163] (ester compound)

[0164] ・"POE(1)": Composed of dipentaerythritol and 3,5,5-trimethylhexanoic acid (9 carbon atoms) / n-heptanoic acid (7 carbon atoms) / n-v...

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Abstract

Provided is a lubricant composition that, even when used for a long time in a high-temperature environment, experiences little evaporation loss and minimizes the amount of evaporation while maintaining good fluidity, and does not readily demonstrate adherence of residue, said lubricant composition including a base oil (A) that includes an alkylnaphthalene (A1) and an ester compound (A2), wherein the content ratio ((A1) / (A2)) of component (A1) and component (A2) is 15 / 85-85 / 15 by mass ratio. Also provided is a tenter device that uses said lubricant composition.

Description

technical field [0001] The present invention relates to a lubricating oil composition and a tenter device using the lubricating oil composition. Background technique [0002] A tenter machine used in the production of optical films, food packaging films, etc. has many sliding parts such as chains, gears, and bearings inside. [0003] When producing optical films and films for food packaging, these sliding parts reach a high temperature of about 200°C. Therefore, the lubricating oil supplied to the sliding part also becomes high temperature, and the evaporation loss becomes large, so the amount of evaporation needs to be suppressed in order to maintain lubricity. [0004] On the other hand, it is considered to increase the supply amount of lubricating oil to maintain the lubricity, but there is concern that the lubricating oil may scatter and adhere to the produced film. In particular, in the production of films for food packaging, adhesion due to scattering of lubricating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M105/06C10M105/32C10M105/38C10M169/04C10M133/12C10N20/04C10N30/00C10N30/08C10N40/32F16C33/66
CPCC10M169/04F16C33/66C10M2207/2835C10N2040/38C10N2030/02C10N2030/08C10M2215/064C10N2030/04C10M111/02C10M2205/223C10M2223/043C10N2030/74C10M105/06C10M105/34C10M105/38C10M133/12C10M2203/065C10M2207/2815C10M2290/02C10N2020/04C10N2030/10C10N2040/00
Inventor 大野拓矢横山翔下敦则
Owner IDEMITSU KOSAN CO LTD