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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9873238 B1

PDFFull Text
Date of Patent:
Jan. 23, 2018

Filed:

Nov. 30, 2010

Inner liner for pneumatic tire and method for producing the same

Applicants:

Shinji Tai, Okayama, JP;

Hiroshi Kawai, Okayama, JP;

Satoshi Yamakoshi, Okayama, JP;

Kouta Isoyama, Okayama, JP;

Masao Hikasa, Okayama, JP;

Yuwa Takahashi, Tokyo, JP;

Hideki Kitano, Tokyo, JP;

Tetsuo Amamoto, Tokyo, JP;

Takatsugu Tanaka, Tokyo, JP;

Inventors:

Shinji Tai, Okayama, JP;

Hiroshi Kawai, Okayama, JP;

Satoshi Yamakoshi, Okayama, JP;

Kouta Isoyama, Okayama, JP;

Masao Hikasa, Okayama, JP;

Yuwa Takahashi, Tokyo, JP;

Hideki Kitano, Tokyo, JP;

Tetsuo Amamoto, Tokyo, JP;

Takatsugu Tanaka, Tokyo, JP;

Assignees:

KURARAY CO., LTD., Kurashiki-shi, JP;

Bridgestone Corporation, Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Nancy R Johnson

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); B29D 30/06 (2006.01); B32B 25/08 (2006.01); B32B 25/14 (2006.01); B32B 25/16 (2006.01); B32B 27/06 (2006.01); B32B 27/18 (2006.01); B32B 27/28 (2006.01); B32B 27/30 (2006.01); B60C 1/00 (2006.01); B60C 5/14 (2006.01); C09J 109/00 (2006.01); C09J 109/06 (2006.01); C09J 121/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29D 30/0681 (2013.01); B32B 25/08 (2013.01); B32B 25/14 (2013.01); B32B 25/16 (2013.01); B32B 27/06 (2013.01); B32B 27/18 (2013.01); B32B 27/28 (2013.01); B32B 27/30 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); B60C 1/0008 (2013.01); B60C 5/14 (2013.01); C09J 109/00 (2013.01); C09J 109/06 (2013.01); C09J 121/00 (2013.01); B29D 2030/0682 (2013.01); B60C 2005/145 (2013.01); Y10T 428/24942 (2015.01); Y10T 428/269 (2015.01); Y10T 428/3154 (2015.04); Y10T 428/3175 (2015.04); Y10T 428/3192 (2015.04); Y10T 428/31573 (2015.04); Y10T 428/31797 (2015.04); Y10T 428/31913 (2015.04); Y10T 428/31924 (2015.04);
Abstract

Disclosed is an inner liner for a pneumatic tire, the inner liner including no less than 8 resin-layers, the resin-layer having a layer A constituted with a resin composition containing a gas barrier resin, and a layer B constituted with a resin composition containing an elastomer, at least one of the resin compositions included in the layer A and the layer B that are adjacent with each other containing a metal salt, the content of the metal salt being no less than 1 ppm and no greater than 10,000 ppm in terms of metal element equivalent, and an interlayer adhesive force between the layer A and the layer B being no less than 500 g/15 mm. The layer A and the layer B are preferably alternately laminated.

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