Patent ID: 8357255
Filing Date: 2013-01-22
Classification: B29D,B32B,B60C,C08L

Abstract:
1. A pneumatic tire manufacturing method comprising forming a tube-shaped carcass band comprising an annular inner liner layer made of a thermoplastic resin and a thermoplastic elastomer composition produced by blending a thermoplastic resin component with an elastomer component and a carcass layer on a making drum, wherein the inner liner layer is formed of a plurality of layers comprising three layers stacked on one another, and mounting the innermost inner liner layer on the making drum and then expanding the innermost inner liner layer radially by a predetermined amount, wrapping a second inner liner layer directly on the outer circumference of the inner most liner layer and then expanding the second liner layer radially by a predetermined amount, wrapping a third inner liner layer directly on the outer circumference of the second liner layer and then expanding the third liner layer radially by a predetermined amount, and then mounting the carcass layer on the third inner liner layer to form the carcass band mounting the carcass band on a shaping drum and then expanding the carcass band to form a green tire.