Sealing material, tire for a vehicle wheel including the sealing material, and process for producing the tire
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United States of America Patent
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Jan 29, 2008
Grant Date -
Feb 17, 2005
app pub date -
Sep 20, 2002
filing date -
Sep 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sealing material includes the following characteristics: a value of a dynamic elastic modulus, measured at a temperature of 80.degree. C., at a frequency of 1 Hz, and with a deformation of 5%, that is at least 60% lower than a value of the dynamic elastic modulus measured at the temperature of 80.degree. C., at the frequency of 1 Hz, and with a deformation of 1%; and the value of the dynamic elastic modulus, measured at the temperature of 80.degree. C., at the frequency of 1 Hz, and with the deformation of 5%, that is greater than or equal to 0.05 kPa. A tire for a vehicle wheel includes a carcass structure comprising at least one carcass ply and at least one layer of sealing material disposed in a radially inner position with respect to the at least one carcass ply. A process for producing the tire is also disclosed.
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