Tubeless pneumatic tire with carcass having butyl-based inner topping rubber layer
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United States of America Patent
Stats
-
May 9, 2006
Grant Date -
Jan 15, 2004
app pub date -
Jul 14, 2003
filing date -
Aug 22, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber. The tubeless pneumatic tire is of lightened weight and exhibits anti-airleak property comparable or superior to that of conventional one even if it is provided with no inner liner.
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