Abstract: Rubber compositions and treads made from such rubber compositions, the rubber composition based upon a cross-linkable rubber composition, the cross-linkable rubber composition having between 15 phr and 45 phr of a modified styrene butadiene rubber, between 55 phr and 85 phr of a polyisoprene rubber and no more than 5 phr of a third diene rubber component. Such rubber compositions may further include between 35 phr and 60 phr of a silica reinforcing filler and a sulfur curing system. The modified styrene butadiene rubber that is useful for the rubber compositions disclosed herein have a glass transition temperature of no more than ?70° C. and is modified with an active moiety that interacts with the silica.

Abstract: The invention provides for a heavy truck tire having a sub-casing, a belt package and a rubber tread, the tread comprising a center zone separating two shoulder zones. The upper shoulder layer consisting of an upper shoulder rubber compound being different from a lower shoulder rubber compound, wherein: the upper shoulder rubber compound has a G*50 of at least 1.3 Mpa and a max tan(?) of at least 0.12; the lower shoulder rubber compound has a max tan(?) not greater than the max tan(?) of a center rubber compound in the center zone being intended to come into contact with the ground; and the center rubber compound has a max tan(?) of at most 0.09.

Abstract: The invention provides for a heavy truck tire (1) having a sub-casing, a belt package (19) and a rubber tread (2), the tread extending axially form a first tread edge (N) to a second tread edge (N?) over a rolling tread width (RTW), the tread comprising a shoulder zone (21) adjacent to each of said first and second edges and a center zone (25) separating the two shoulder zones, each shoulder zone comprising a radially lower shoulder layer (24) and a radially upper shoulder layer (22), the upper shoulder layer being intended to come into contact with the ground and the lower shoulder layer being interposed between the belt package and the upper shoulder layer, the upper shoulder layer consisting of an upper shoulder rubber compound, the lower shoulder layer consisting of a lower shoulder rubber compound being different from the upper shoulder rubber compound, wherein: —the upper shoulder layer extends a distance LI from a tread edge (N, N?) axially inward, the distance LI being greater than 15% and less than 4

Abstract: A PMC fabric yarn, for use in a PMC fabric, has a composition which is a mixture of between 75% to 99% PET, 1% to 20% polymeric siloxane, and with a remainder of the composition being between 0.1% to 5% compatibilizer.