Bridgestone Corporation

Takuya Ogasawara

Hideyuki Chiashi

Hideki Kitano

Ryuji Nakagawa

Kotaro Hayakawa

Seiichi Tahara

Misa Aoki

Provided is a rubber composition that achieves both wet performance and low loss property while delivering excellent dry handling performance. A rubber composition comprises: a rubber component; and a styrene-alkylene block copolymer, wherein a total styrene content of the styrene-alkylene block copolymer is 30 mass % or more.

Rubber composition and tire

The laminate according to the present invention includes a thermoplastic resin film-containing layer and a rubber layer, in which the rubber layer contains a modified diene polymer, and the rubber layer has a dynamic storage modulus E' at &#x2212;20&#xb0; C. of 1.0&#xd7;10to 1.0&#xd7;10Pa. This laminate can improve the resistance to the fractures and the cracks of the inner liner.

Laminate, tire, and method for producing tire

A pneumatic tire includes: an inner liner having a thermoplastic resin film, a carcass, and an adhesive layer disposed between the inner liner and the carcass, in which the dynamic storage modulus E's at &#x2212;20&#xb0; C. of the thermoplastic resin film, the adhesive layer, and the carcass are defined as E', E&#x2032;, and E&#x2032;, respectively, and the relationship among E&#x2032;, E&#x2032;, and E&#x2032; satisfies E&#x2032;&#x3e;E&#x2032;&#x3e;E&#x2032;. This pneumatic tire has excellent anti-crack property in a low-temperature environment of the inner liner.

Pneumatic tire

Provided are a pressure-sensitive adhesive composition comprising, as a rubber component, at least two modified rubbers modified with a polar functional group and having different modification rates with each other, a laminate body comprising (A) a resin film layer and (B) a rubber elastic body layer wherein they are adhered via (C) the said pressure-sensitive adhesive composition, and a pneumatic tire having the said laminate body as an inner liner layer; and thus, provided are the pressure-sensitive adhesive composition that can firmly bond between the resin film layer and the rubber elastic body layer while the laminate body obtained therefrom does not generate cracks at low temperature, the laminate body using the said pressure-sensitive adhesive composition, and the pneumatic tire.

Adhesive composition, adhesion method, and pneumatic tire

The present invention provides an adhesive composition that may improve both adhesiveness to a film layer and adhesiveness to a rubber layer, and an adhesion method using the same, as well as a laminate and a tire. The adhesive composition according to the present invention includes a rubber component, at least 80 mass % of which rubber component is an epoxidized natural rubber.

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Tokyo, Japan

Takuya Ogasawara