Method of increasing lubricity of snow ski bases
AssigneeZardoz LLC
InventorPaul Ramer
Life of this patent
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Abstract
A method of increasing the lubricity of snow skis is disclosed in which an effective amount of a non-functional perfluoropolyether is applied to the base of the snow skis. Preferably, the method includes application of a non-functional perfluoropolyether, where the perfluoropolyether is a liquid at room temperature, having a pour point below 5.degree. F., a boiling point greater than 200.degree. F., and an average molecular weight of from 1,000 to 15,000.
Claims17
A method of increasing the lubricity of a snow ski having a sintered base, comprising the step of applying a non-functional perfluoropolyether to the base of the ski in an amount effective to increase the lubricity during subsequent use of the sintered base in comparison to the lubricity of a sintered base of another snow ski not so treated, wherein the non-functional perfluoropolyether is liquid at a temperature of 5.degree. F.
A method of increasing the lubricity of a snow ski having a sintered base, comprising the step of applying to the base of the ski a solution containing a non-functional perfluoropolyether in an amount effective to increase the lubricity of the skis during subsequent use, wherein the non-functional perfluoropolyether is liquid at room temperature and is selected from the group consisting of:
- F[CF(CF.sub.3)CF.sub.2 O].sub.n CF.sub.2 CF.sub.3 (where n is from 5 to 90),
- CF.sub.3 O(CF(CF.sub.3)CF.sub.2 O).sub.p (CF.sub.2 O).sub.q Rf
- where p+q is from 8 to 45, p/q is from 20 to 100, and Rf is selected from the group consisting of CF.sub.3, C.sub.2 F.sub.5 and C.sub.3 F.sub.7),
- F(CF.sub.2 CF.sub.2 CF.sub.2 O).sub.n CF.sub.2 CF.sub.3 (where n is from 5 to 90), and
- CF.sub.3 O(CF.sub.2 CF.sub.2 O).sub.r (CF.sub.2 O).sub.s CF.sub.3 (where r+s is from 40 to 180 and r/s is from 0.5 to 2.0).
Dependencies are inferred from the claim text.