Tire with zoned built-in sealant layer
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United States of America Patent
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Apr 17, 2012
Grant Date -
May 21, 2009
app pub date -
Nov 19, 2007
filing date -
Nov 19, 2007
priority date (Note) -
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Abstract
The present invention relates to a pneumatic tire which contains a built-in zoned puncture sealant layer. The zoned puncture sealant layer is comprised of organoperoxide depolymerized butyl rubber zones comprised of a central primary zone and lateral zones joined together to form a unitary sealant layer. The sealant of the lateral zones of the sealant layer is of a higher storage modulus (G′) than the sealant of the central zone.
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