Convoluted boot and constant velocity joint lubricant
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United States of America Patent
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-
Jun 10, 2008
Grant Date -
Jul 31, 2003
app pub date -
Dec 23, 2002
filing date -
Dec 24, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A convoluted boot for constant velocity joints and a constant velocity joint lubricant for use in such a convoluted boot. An additive which is added to the constant velocity joint lubricant and/or to the convoluted boot material is provided. The additive comprises amide waxes and also may include hydrocarbon oils. Use is made, in particular, of monoamides and/or diamides of carboxylic acids with 8 to 50 carbon atoms to form, by diffusion, a lubricating film on the surface of a convoluted boot. Furthermore, oleic acid amide and/or ethylenediamine distearate result in a particularly early formation of a lubricating film on the outer boot surface and thus to a long-term prevention of noise.
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