ELASTOMERIC SEMIFINISHED PRODUCT FOR THE PRODUCTION OF A TYRE LINER, AND TYRE PROVIDED WITH SAID LINER

摘要

A semi-finished product of elastomeric material includes a strip suitable for manufacturing an inner gas-impermeable coating layer of a pneumatic tyre. A right cross-section of the strip includes a profile that tapers axially outwards on at least one edge of the strip. A method for manufacturing a tyre for a vehicle wheel includes forming a layer of liner on a rigid support by laying at least one strip of elastomeric material on the rigid support in axially consecutive turns, laying other semi-finished products suitable for forming other components of the tyre in a radially outer position with respect to the layer of liner, and vulcanizing the layer of liner and other semi-finished products. The at least one strip includes a right cross section including the tapered profile. A tapered portion of a first turn is axially overlapped on an axially adjacent turn that was previously laid on the rigid support.