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.:
Date of Patent:
Jan. 22, 2019
Filed:
May. 29, 2012
Nahoto Hayashi, Kurashiki, JP;
Masao Hikasa, Kibi chuo-cho, JP;
Yusuke Tanaka, Kamisu, JP;
Hideki Kitano, Tokyo, JP;
Takatsugu Tanaka, Tokyo, JP;
Tetsuo Amamoto, Tokyo, JP;
Nahoto Hayashi, Kurashiki, JP;
Masao Hikasa, Kibi chuo-cho, JP;
Yusuke Tanaka, Kamisu, JP;
Hideki Kitano, Tokyo, JP;
Takatsugu Tanaka, Tokyo, JP;
Tetsuo Amamoto, Tokyo, JP;
Kuraray Co., Ltd., Okayama, JP;
BRIDGESTONE CORPORATION, Chuo-ku, Tokyo, JP;
Abstract
Provided is an inner liner for a pneumatic tire including no less than 8 resin-layers, the resin-layer having a layer A constituted with a resin composition containing a resin having gas barrier properties, and a layer B that is adjacent to the layer A and is constituted with a resin composition containing an elastomer, an extensional viscosity ηof the resin composition of the layer A, and an extensional viscosity ηof the resin composition of the layer B as determined at a predetermined temperature both being no less than 1,000 Pa·s, and an extensional viscosity ratio η/ηbeing no less than 0.2 and no greater than 10.