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Title:
MULTI-LAYERED STRUCTURE, INNER LINER FOR PNEUMATIC TIRE, AND PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2012/164917
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a multi-layered structure having high gas barrier performance and crack resistance as well as excellent fatigue resistance, and to provide an inner liner for a pneumatic tire using the multi-layered structure, as well as a pneumatic tire comprising the inner liner. The present invention is characterized in comprising: a barrier layer (2) made from a polymer material which, at 20°C and 65% RH, has an elongation-at-break according to JIS K 7113 of at most 50%; and an elastomer layer (3) made from a polymer material which, at 20°C and 65% RH, has an elongation-at-break according to JIS K 7113 of at least 100%; the amount of plastic deformation during 100% strain input being greater than the amount of deformation at the proof stress point.

Inventors:
AMAMOTO TETSUO (JP)
HAYASHI NAHOTO (JP)
HIKASA MASAO (JP)
TANAKA YUSUKE (JP)
Application Number:
PCT/JP2012/003510
Publication Date:
December 06, 2012
Filing Date:
May 29, 2012
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
KURARAY CO (JP)
AMAMOTO TETSUO (JP)
HAYASHI NAHOTO (JP)
HIKASA MASAO (JP)
TANAKA YUSUKE (JP)
International Classes:
B32B25/08; B60C5/14
Domestic Patent References:
WO2008029939A12008-03-13
Foreign References:
JPH01314164A1989-12-19
JP2009263653A2009-11-12
JPH0640207A1994-02-15
Other References:
POLYMER, vol. 34, no. 10, 1993, pages 2148 - 2154
S. ANIYA ET AL., ANALYTICAL SCIENCE, vol. 1, 1985, pages 91
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
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