JPH04339893A - Lubricant for sliding - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a new gliding lubricant, and more particularly, to a gliding lubricant that can be easily applied to the gliding surface of skis, has excellent operability, and can significantly improve gliding properties. It is something.

0002

[Prior Art] Conventionally, it has been known that applying a lubricant (commonly known as wax) to the sliding surface of skis, etc., is effective in preventing snow from adhering to the sliding surface and improving the sliding characteristics on the snow. is known, and paraffinic hydrocarbons are usually used as this sliding wax.

[0003] However, paraffinic hydrocarbons are linear compounds, have a large steric structure, and have poor permeability to sliding surfaces such as skis, and when the temperature is low,
The wax layer tends to peel off during gliding, and the effect is not long-lasting, resulting in insufficient gliding properties. Moreover, since the paraffinic hydrocarbon has a high melting point, it has the disadvantage of poor coating properties, such as difficulty in penetrating into the crystal voids of the sliding surface unless it is melted or dissolved in a solvent and applied to the sliding surface. There is. Further, the hardness of the paraffin hydrocarbon needs to be changed depending on the snow quality and snow temperature. Specifically, as the snow temperature decreases, it becomes necessary to use harder materials, which is less convenient.

[0004] As solutions for improving the drawbacks of paraffinic hydrocarbons, for example, a sliding wax consisting of molybdenum disulfide alone or containing molybdenum disulfide (Japanese Patent Application Laid-Open No. 61-23668), gallium or A ski wax consisting of molybdenum sulfide and paraffin, or gallium or molybdenum disulfide, a specific alloy, and paraffin (Japanese Unexamined Patent Publication No. 1994-294783), a lubricating composition consisting of a paraffinic hydrocarbon and a solvent such as decahydronaphthalene. (Japanese Patent Publication No. 63-502595) etc. have been proposed. However, these gliding waxes and lubricating compositions have both poor gliding properties and operability.
This cannot necessarily be said to be sufficient.

[0005]

OBJECTS OF THE INVENTION The present invention overcomes the drawbacks of conventional sliding lubricants, makes it easy to apply to sliding surfaces such as skis, has excellent operability, and improves its sliding properties. The purpose of this invention is to provide a sliding lubricant that has significantly improved sliding properties and has good sliding properties under all snow conditions and snow temperatures.

[0006]

[Means for Solving the Problems] The present inventors have conducted extensive research in order to develop a sliding lubricant having the above-mentioned favorable properties. As a result, tricyclic hydrocarbons, particularly adamantane compounds, have a three-dimensional structure. Since it is small in size, it easily penetrates into the crystal voids of the sliding surface of skis etc. (especially polyethylene sliding surface), smooths the sliding surface on the micron order, improves hydrophobicity, and is easy to apply. Therefore, it has been discovered that a sliding lubricant consisting of this tricyclic hydrocarbon alone or containing at least this tricyclic hydrocarbon can be suitable for this purpose, and based on this knowledge, the present invention has been developed. It was completed.

That is, the present invention provides a sliding lubricant consisting solely of tricyclic hydrocarbons or containing at least tricyclic hydrocarbons. The present invention will be explained in detail below.

The tricyclic hydrocarbon used in the sliding lubricant of the present invention has a melting point of 100°C or lower, preferably 50°C or lower, and a boiling point of 100°C or higher, preferably 150°C.
The above compounds are desirable, and examples of such compounds include exo-tetrahydrodicyclopentadiene, perhydroacenaphthene, perhydrofluorene, perhydroanthracene, perhydrophenanthrene, and various adamantane compounds shown below. .

That is, first, the formula [I]

0010

[Chemical formula 1]

Examples include adamantane represented by:

[0012] Also, general formula [II]

[0013]

[Case 2]

(In the formula, R1 is an alkyl group having 2 to 20 carbon atoms.)

Examples include monoalkyl adamantane represented by the following formula.

Furthermore, general formula [III]

[0017]

[Chemical formula 3]

(In the formula, R1 and R2 are each an alkyl group having 2 to 20 carbon atoms, and they may be the same or different from each other.)

0019
Examples include dialkyl adamantane represented by the following formula.

A specific example of the dialkyladamantane represented by the above general formula [III] is dimethyladamantane represented by the following formula [IV].

[0021]

[C4]

Furthermore, general formula [V]

[0023]

[C5]

Trialkyladamantane represented by can be mentioned.

Specifically, the trialkyladamantane represented by the above general formula [V] is, for example, the following formula [V].
I] and trimethyladamantane.

[0026]

[C6]

[0027] Also, general formula [VII]

[0028]

[C7]

(In the formula, R1 is an alkyl group having 2 to 20 carbon atoms.)

Examples include adamantane monoalcohol esters represented by:

Next, general formula [VIII]

[0032]

[Chemical formula 8]

(In the formula, R1 and R2 are each an alkyl group having 2 to 20 carbon atoms, and they may be the same or different from each other.)

0034
Examples include adamantane diol diesters represented by:

Furthermore, general formula [IX]

[0036]

[Chemical formula 9]

(In the formula, R1, R2 and R3 are each an alkyl group having 2 to 20 carbon atoms, and they may be the same or different from each other.)

[
Examples include adamantane triol triester represented by the following formula.

Among these adamantane compounds, adamantane monoalcohol ester represented by the general formula [VII], adamantane diol diester represented by the general formula [VIII], and adamantane triol triester represented by the general formula [IX], For example, caproic acid, isovaleric acid, n-heptylic acid, caprylic acid, pelargonic acid, capric acid, n-undecylic acid, lauric acid, myristic acid, palmitic acid, and the corresponding adamantane monoalcohol, adamantane diol, and adamantane triol. By carrying out an esterification reaction with a carboxylic acid such as acid, stearic acid, eicoic acid, cyclohexanecarboxylic acid, decalincarboxylic acid, or a reactive derivative of carboxylic acid such as its lower alkyl ester, acid chloride, or acid anhydride, can be manufactured.

These tricyclic hydrocarbons may be used alone or in combination of two or more. Among these, adamantane compounds are particularly suitable as tricyclic hydrocarbons.

The sliding lubricant of the present invention may contain the above-mentioned tricyclic hydrocarbon, and may consist solely of the above-mentioned tricyclic hydrocarbon, or may contain at least the above-mentioned tricyclic hydrocarbon. It may also partially contain hydrocarbons.

There are various components that can be used together with the tricyclic hydrocarbon, but paraffin wax and/or organic solvents are particularly preferred. By using paraffin wax and/or an organic solvent in combination with the tricyclic hydrocarbon, durability, coating properties, sliding properties, etc. can be further improved.

[0043] Paraffin wax refers to a saturated chain hydrocarbon compound that is solid or semi-solid at room temperature, and has 10 to 3 carbon atoms in terms of affinity with the tricyclic hydrocarbons.
0 is preferred.

[0044] As the organic solvent, one that is liquid at room temperature is used, and toluene, acetone, heptane, cyclohexane, trimethylnorbornane, carbon tetrachloride, and the like are particularly preferred.

[0045] When paraffin wax and/or organic solvent as described above is used in combination with tricyclic hydrocarbon as described above, the blending amount of the tricyclic hydrocarbon may be adjusted to at least 0.1% by weight, especially from 0.5 to 8% by weight, based on the total weight with formula hydrocarbons
The content is preferably 5% by weight. If the tricyclic hydrocarbon content is less than 0.1% by weight, the desired effects of the present invention cannot be achieved.

The sliding lubricant of the present invention may contain solvents such as hydrogenated naphthalene such as decalin, and various additive components conventionally used in sliding lubricants, as long as the purpose of the present invention is not impaired. can be contained.

The sliding lubricant of the present invention is easy to apply to sliding surfaces such as skis, has excellent operability, and has significantly improved sliding properties compared to conventional ones, and is suitable for all types of snow, Suitable for snow temperatures, for example, suitable for skiing, bobsledding, luge, etc.

[0048]

EXAMPLES Next, the present invention will be explained in more detail with reference to examples, but the present invention is not limited to these examples in any way.

Example 1 1 g of adamantanetrioltricaprylic acid ester was applied thinly to the ski running surface and finished with a sponge. Next, two ski running tests, A and B, were conducted under the conditions shown in Table 1 below, and the skiing times were measured. In addition,
This skiing test was performed three times with the same skier and the same skis, and the average value was determined. The results are shown in Table 2 below. Naturally, the shorter the run time, the better.

[0050]

[Table 1]

Example 2 In Example 1, instead of adamantanetrioltricaprylate, 20g of a mixture of 50% by weight of adamantanetrioltricaprylate and 50% by weight of paraffinic hydrocarbon was used, melted with an iron, and heated with a ski. Apply it to the sliding surface and spread it evenly with a trowel, then
After the surface was scraped thin and finished by brushing, a sliding test was conducted in the same manner as in Example 1. The results are shown in Table 2 below.

Example 3 A sliding test was conducted in the same manner as in Example 1, except that perhydroacenaphthene was used instead of adamantanetrioltricaprylate. The results are shown in Table 2 below.

Comparative Example 1 A test was carried out using 20 g of competition wax [System Elite (trade name) manufactured by TOKO, yellow or white] as the wax. In addition, 100% by weight of yellow was used for the A test (powder snow), and a mixture of 50% by weight of yellow and 50% by weight of white was used for the B test (wet snow).
It was applied in the same manner as above and a sliding test was conducted. The results are shown in Table 2 below.

Comparative Example 2 All-purpose wax [TOKO aerosol type (trade name)] was applied to the ski running surface, the excess wax was scraped off with a scraper, and the finish was finished with cork, followed by the same procedure as in Example 1. I did a sliding test. The results are shown in Table 2 below.

Example 4 In Example 2, 15% by weight of adamantane and paraffin wax [competition wax, Coating was carried out in the same manner as in Example 2, except that a mixture with 85% by weight of System Elite (trade name) manufactured by TOKO (trade name), Yellow or White was used, and a sliding test was conducted. The results are shown in Table 2 below. Note that 100% by weight of yellow was used for the A test (powder snow), and a mixture of 50% by weight of yellow and 50% by weight of white was used for the B test (wet snow).

Example 5 The same procedure as in Example 1 was carried out except that a mixture of 2% by weight of adamantanetrioltricaprylate and 98% by weight of trimethylnorbornane was used instead of adamantanetrioltricaprylate as the wax. It was applied in the same manner as in Example 1 and a sliding test was conducted. The results are shown in Table 2 below.

Example 6 Coating was performed in the same manner as in Example 1, except that trioctyl adamantane was used as the wax instead of adamantane triol tricaprylate, and a sliding test was conducted. The results are shown in Table 2 below.

[0058]

[Table 2]

From Table 2, it can be seen that the sliding lubricant of the present invention is superior in sliding properties to the competitive waxes and all-purpose waxes of the comparative examples.

[0060]

Effects of the Invention The sliding lubricant of the present invention consists of a tricyclic hydrocarbon alone or contains at least a tricyclic hydrocarbon, and the tricyclic hydrocarbon, particularly adamantane, The compound has a smaller three-dimensional structure than paraffinic hydrocarbons, so it easily penetrates into the crystal pores of the sliding surface of skis (especially polyethylene sliding surfaces), smoothing the sliding surface on the micron order and improving hydrophobicity. It has the characteristics of being easy to apply and can be easily applied. Therefore, the sliding lubricant of the present invention has high commercial value, such as excellent operability and sliding properties.

Claims (3)

[Claims] 1. A sliding lubricant consisting of a tricyclic hydrocarbon alone or containing at least a tricyclic hydrocarbon. 2. The method according to claim 1, wherein the tricyclic hydrocarbon is contained in a proportion of 0.1% by weight or more based on the total weight of the paraffin wax and/or organic solvent and the tricyclic hydrocarbon. Gliding lubricant. 3. The sliding lubricant according to claim 1, wherein the tricyclic hydrocarbon is an adamantane compound.