Bridgestone Corporation

Hideyuki Chiashi

Takuya Ogasawara

Hideki Kitano

Ryuji Nakagawa

Kotaro Hayakawa

Yusuke Hirokawa

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.

Adhesive composition, adhesion method using the same, laminate and tire

There is provided a pneumatic radial tire having favorable steering stability required as a high performance radial tire designed for high performance cars, durability and good cost performance. The pneumatic radial tire is framed by a carcasstoroidally extending between a pair of bead portionsand has at least two layers of crossing belt layers() formed by rubberizing steel cords and disposed around an outside of a crown portion thereof in a radial direction. The steel cord has a single strand structure or a core-single layer sheath structure composed of six to ten steel wires of 0.10 to 0.20 mm in diameter, a number of driven steel cords is 40 cords/50 mm or more and a distance between the adjacent steel cords within the belt layer is 0.3 mm or more.

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Tokyo, Japan

Hideyuki Chiashi