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Title:
インナーライナー及び空気入りタイヤ
Document Type and Number:
Japanese Patent JP7455024
Kind Code:
B2
Abstract:
To provide an inner liner having sufficient gas barrier properties and bending resistance, and also having excellent adhesion of overlaid ends when made into a roll, and a pneumatic tire comprising the same.SOLUTION: An inner liner has a plurality of gas barrier layers (A layers) 1 containing a gas barrier resin, a plurality of elastomer layers (B layers) 2 containing a styrenic elastomer having a polar group reactable with the gas barrier resin, and a diene rubber layer (D) 6 laminated as at least one outermost layer. The total number of the A and B layers is 9 or more. The A and B layers are laminated alternately one by one. The polar group is selected from the group consisting of a carboxy group and a derivative thereof. The plurality of B layers include a plurality of B1 layers 4 having the A layers adjacent to both faces. The content of the polar groups in the B1 layers is 0.01 mmol/g or more and 0.1 mmol/g or less. The plurality of B1 layers have an iodine value IB1 of 50 g/100 g or more and 300 g/100 g or less.SELECTED DRAWING: Figure 1

Inventors:
Yasuhiro Nonaka
Shoko Nishino
Application Number:
JP2020138211A
Publication Date:
March 25, 2024
Filing Date:
August 18, 2020
Export Citation:
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Assignee:
KURARAY CO.,LTD.
Bridgestone Corporation
International Classes:
B32B25/08; B60C5/14
Domestic Patent References:
JP2012250573A
Foreign References:
WO2010119668A1
Attorney, Agent or Firm:
Yoshinori Ikeda
Kazunori Amano



 
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