Patent ID: 6624233
Filing Date: 2003-09-23
Classification: B60C,C08K,Y02T,Y10T

Abstract:
A low rolling resistance tire for vehicles, comprising:a carcass structure; a belt structure coaxially extending around the carcass structure; and a tread coaxially extending around the belt structure and being externally provided with a rolling surface designed to contact the ground; wherein the tread comprises a vulcanized polymer base comprising at least a first silica-based reinforcing filler, and wherein the first silica-based reinforcing filler has: an average projected area of aggregates, measured before incorporation into the polymer base, lower than 20,000 nm2; a dispersion index in the polymer base greater than or equal to 97%; and an average projected area of the aggregates, measured after incorporation into the polymer base, greater than or equal to 8,500 nm2 and less than or equal to 18,000 nm2.