Run flat tire and method for producing same
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
May 4, 2015
filing date -
May 30, 2014
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Abstract
A run flat tire having a side reinforcing rubber part is disclosed. The side reinforcing rubber part is formed by a rubber composition having a ratio (M50H/M50N) of tensile stress (M50H) in 50% elongation at a measurement temperature of 100° C. to tensile stress (M50N) in 50% elongation at a measurement temperature of 23° C. of from 1.0 to 1.3. Ratio (tb10/tp10) of 10% vulcanization time (tb10) at a vulcanization temperature of 160° C. of a rubber composition for a bead filler to 10% vulcanization time (tp10) at a vulcanization temperature of 160° C. of a rubber composition for a covering rubber of a carcass ply is from 0.5 to 1.0.
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