KR100189793B1 - Lubricant composition for assembling a tire - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricant composition for assembling tires used for assembling and mounting a tire in a wheel, wherein propylene glycol 5 to 20%, nonylphenol 3 to 5%, sodium nitrite 0.1 to 0.5%, and sodium metasilicate 0.1 to It is characterized in that it contains 0.5% and water as a balance material, the lubricant for tire assembly of this composition is excellent in lubricity, well soluble in water, and after use, it does not stain quickly due to dryness, low surface tension, spreadability and smoothness It is so high that it is easily fitted when the tire is fitted to the wheel, does not damage the tire, and also does not cause corrosion to the metal around the tire with a lubricant applied.

Description

Lubricant composition for tire assembly

The present invention relates to a lubricant composition for assembling tires used when assembling and mounting a tire on a wheel, and more particularly, to a liquid lubricant composition having no metal corrosion resistance and preventing contamination by lubricity residues.

Conventionally, when disassembling and installing a tire on a wheel, a lubricant is generally dissolved in water as a lubricant, but after drying, the lubricant causes stains on the tire and also causes corrosion of aluminum or steel, which is a material of the wheel. There is a flaw. On the other hand, silicone oil was mixed with an emulsifier and diluted to a certain concentration in water. The manufacturing cost is high, and fine cracking may occur on the rubber surface of the tire due to the emulsifier, and it is difficult to freeze it when the temperature drops below freezing in winter. In some cases.

Accordingly, an object of the present invention is to provide a lubricant composition for assembling tires, which is excellent in lubricity, dissolves well in water, and does not cause stains due to rapid drying after use, and does not freeze even in winter, in view of various problems of the prior art.

According to the present invention for solving the above problems, there is provided a lubricant composition in which a specific corrosion inhibitor and nonylphenol are blended in a predetermined amount with water-soluble glycol as a main component.

More specifically, the lubricant composition of the present invention is characterized in that it is composed of 5 to 20% of propylene glycol, 3 to 5% of nonylphenol, 0.1 to 0.5% of sodium nitrite, and 0.1 to 0.5% of sodium metasilicate and water of balance.

In the present composition, propylene glycol is a lubricant which is a low toxic, viscous and stable water-soluble substance without adversely affecting the tire rubber, and the preferred amount in the composition is 5 to 20%, and nonylphenol acts as a dispersion lubricant and rubber. Anti-oxidant viscous liquid for the composition, the preferred content of the composition is 3 to 5%, sodium nitrite and sodium metasilicate are excellent corrosion resistance to iron and aluminum, metal parts such as wheels and balances It acts to prevent corrosion of the compound and may be blended in an amount of 0.1 to 0.5% in the present composition to satisfy the required performance.

The lubricant composition of the present invention having the composition as described above has excellent lubricity and dissolves well in water, and after use, it does not stain quickly due to quick drying, and has low surface tension, high spreadability and high smoothness, so that the tire is easily inserted into the wheel and attached to the tire. It does not cause damage, and also does not cause corrosion to the metal around the tire to which the lubricant is applied.

Features and other advantages of the present invention as described above will become more apparent by the embodiments described below. Of course, it should be understood that the following examples are presented to aid the understanding of the present invention but are not intended to limit the present invention thereto.

[Examples 1-3]

A lubricant composition for assembling tires was formulated in a composition as shown in Table 1 below. At this time, mixing was performed by adding sodium nitrite and sodium metasilicate to ion-exchanged water, completely dissolving it, and then mixing nonylphenol (NP-9) and propylene glycol.

TABLE 1

In order to find out the performance of the lubricants of Examples 1 to 3 at all times, conventional lubricants prepared by dissolving soap components in water (Comparative Example 1) and silicone oils were mixed with an emulsifier and diluted to a certain concentration in water to prepare a conventional lubricant ( The performance of Comparative Example 2) was compared and evaluated in the following manner. The evaluation results are shown in Table 2 below.

Lubricity: Apply lubricant to tire plate (30cm long) for tire processing, attach to steel plate, apply 200g load on rubber plate, and measure sliding length at 30 ° angle of inclination.

Corrosion resistance: The prepared sample solution is placed in a 500 ml beaker, about 300 ml, and immersed in a piece of iron plate.

Drying property: 1cc was applied to 30cm2 of rubber plate for tire processing, and the complete drying time was measured and evaluated.

Appearance pollution: It is evaluated by visually whether a stain has occurred on the dried rubber sheet in the drying test.

Table 2. Test Results

From Table 2, the tire assembly lubricants of Examples 1 to 3 according to the present invention have excellent lubricity and corrosion resistance compared to conventional tire assembly lubricants, and are dried in a short time and do not leave dry after stains. It can be seen that there is.

Claims (1)

In the lubricant composition for tire assembly, a tire comprising 5 to 20% of propylene glycol, 3 to 5% of nonylphenol, 0.1 to 0.5% of sodium nitrite, and 0.1 to 0.5% of sodium metasilicate and a balance substance. Lubricant composition for assembly.