JPH09255921A - Ski wax - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a ski wax capable of markedly improving the sliding properties of a ski over other fluorine compd. by using a specific perfluoroalkyl iodide. SOLUTION: This ski wax is at least one 1H,1H,2H,2H-perfluoroalkyl iodide of the formula (n is 8 to 14), or a compsn. contg. the same. A compd. of the formula can be obtd. by reacting an industrially used perfluoroalkyl iodide with ethylene. Among those compds. of the formula, 10-16C compds. can be used as a ski wax. Lower than 10C compds. are liq. at ordinary temp. unsuitably while higher than 16C compds. are higher than 150 deg.C in m.p unsuitably. When the above compd. is used, the sliding properties of a ski can be markedly improved. This is believed to be because this compd. has ethylene atomic groups to increase the affinity thereof for a paraffin wax as a base wax, whereby the spreadability thereof can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wax for improving ski gliding properties.

[0002]

2. Description of the Related Art Generally, it is known that a fluorine compound has a low coefficient of friction and exhibits excellent lubricating properties. From this, the application of fluorine compounds to ski waxes has been considered and they have come to be marketed. This fluorine-based ski wax has much better gliding properties than non-fluorine-based wax, and is currently attracting attention. However, in this field, there is a demand for a wax having a better gliding property, and the present inventors have already proposed the use of perfluoroalkyl iodides as ski waxes (Japanese Patent Application No. 6-163629). By the way, in the case of a fluorine ski wax, a paraffin wax is usually applied in advance as a base wax. However, the perfluoroalkyl iodides have some problems in affinity with the paraffin wax, and it is difficult to apply them uniformly. Therefore, if we develop one with a better affinity for paraffin wax,
It was thought that the gliding property would be further improved.

[0003]

[Means for Solving the Problems] The present inventors have developed 1H, 1H, 2
Since H, 2H-perfluoroalkyl iodides contain an ethylene atomic group in their structure, it is considered that the affinity of the base wax with the paraffinic wax is increased and the applicability thereof is improved. In fact, they have found that the coating property is improved and, as expected, they have an excellent effect on the skiing property of the ski, and have reached the present invention. That is, skis coated with base wax were coated with 1H, 1H, 2H, 2H-perfluoroalkyl iodides, and the skis were slid on a sloping snow surface, and the sliding speed was measured. As a result, a remarkably good effect was shown. The present invention provides one or two 1H, 1H, 2H, 2H-perfluoroalkyl iodides represented by the structural formula C _n F _{2n + 1} CH ₂ CH ₂ I (n is an integer of 8 to 14). The present invention provides a ski wax composed of the above or a composition containing them.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. The 1H, 1H, 2H, 2H-perfluoroalkyl iodides used in the present invention can be synthesized by reacting industrially used perfluoroalkyl iodides with ethylene (for example, J. Chem. Soc. ., 2856 (1949)],
Further, 1H, 1H, 2H, 2H-perfluoroalkyl iodides themselves are industrially produced. As a physical property of ski wax, a solid having a melting point of 150 ° C. or lower is desirable from the viewpoint of operability when applied. Therefore, among the 1H, 1H, 2H, 2H-perfluoroalkyl iodides, those having a carbon number of 10 to 16 are used as ski waxes. That is,
If it has less than 10 carbon atoms, it is liquid at room temperature, and if it has more than 16, it has a melting point higher than 150 ° C. As a method of applying to skis, after applying base wax, powder of 1H, 1H, 2H, 2H-perfluoroalkyl iodides is sprinkled on about 0.5g per ski and melted with an iron. While stretching and applying while so-called hot waxing method, 1H, 1H, 2H, 2H −
Perfluoroalkyl iodide is mixed with other substances such as paraffin wax to form a paste, which is then stretched and applied with a cloth-like material, and the so-called raw coating method is used in that state.
There is a hot waxing method of ironing after the treatment of. The ski wax of the present invention is not limited to skis, but can be applied to snowboards, plastic sleds and the like, and of course, the same effects can be obtained.

[0005]

EXAMPLES The effects of the present invention will be shown below with reference to Examples and Comparative Examples. [Measurement method] As usual, after ski skis are coated with a base wax [Two-way cleaner manufactured by Dowa Mining Co., Ltd.], 0.5% of 1H, 1H, 2H, 2H-perfluoroalkyl iodide or other fluorine compound is applied. It was sprinkled with about g and ironed on it. The speed was measured with a speedometer by sliding a snow surface with a gradient of 20 degrees under a predetermined temperature. Example 1 The gliding properties of skis when 1H, 1H, 2H, 2H-perfluoroalkyl iodides shown in Table 1 were applied were evaluated. The results are shown in Table 1.

[0006]

[Table 1]

Comparative Example 1 The gliding properties of skis were evaluated when a fluorine compound other than 1H, 1H, 2H, 2H-perfluoroalkyliodide shown in Table 2 was applied. The results are shown in Table 2.

[0008]

[Table 2]

[0009]

As is clear from the comparison between the above-mentioned Examples and Comparative Examples, when the 1H, 1H, 2H, 2H-perfluoroalkyl iodides of the present invention are used, the ski content of Sliding property is improved several steps.

Claims (1)

[Claims] 1. A 1H or 1H, 1H, 2H, 2H-perfluoroalkyl iodide represented by the structural formula C _n F _{2n + 1} CH ₂ CH ₂ I (n is an integer of 8 to 14), or 2 A ski wax comprising one or more or a composition containing these.