STRIP, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING PNEUMATIC TIRE

摘要

Adhesive property between an inner liner and a carcass ply is improved together with tire uniformity, thereby reducing crack growth following repeated flection deformation during traveling with a tire. A strip to be wound on an outer circumferential surface of a core body in a circumferential direction to form an inner liner having a shape close to a finished sectional shape of a tire is provided. The strip is formed of a single layer including a first layer arranged in a tire innermost layer or composite layers of the first layer and a second layer disposed adjacently to a carcass ply and made of a thermoplastic elastomer composition. The first layer is a thermoplastic elastomer composition containing a styrene-isobutylene-styrene block copolymer and at least one kind of a tackifier, a butyl-based rubber and a natural rubber. The strip has a strip main body having a thickness (T1) of 0.02 to 1.0 mm and ear portions formed on opposite sides of the strip main body. The ear portions have a thickness (T2) smaller than the thickness (T1) and a width (W2) of 0.5 mm to 5.0 mm.