Patent ID: 7968635
Filing Date: 2011-06-28
Classification: B60C,C08K

Abstract:
1. A tire composition for forming a tire component, the composition formed by combining at least a preformed free-flowing filler composition and at least one vulcanizable rubber selected from natural rubbers, synthetic polyisoprene rubbers, polyisobutylene rubbers, polybutadiene rubbers, and random styrene-butadiene rubbers (SBR); the preformed free-flowing filler composition formed by combining at least an active filler and a first silane; the active filler including at least one of active filler selected from carbon blacks, silicas, silicon based fillers, and metal oxides present in a combined amount of at least 35parts by weight per 100 parts by weight of total vulcanizable rubber, of which at least 10 parts by weight is carbon black, silica, or a combination thereof; and the first silane comprising at least one silated cyclic core polysulfide having the general formula wherein: each occurrence of G each occurrence of G each occurrence of R each occurrence of Y each occurrence of R each occurrence of R each occurrence of R each occurrence of X each occurrence of X each occurrence of the subscripts, a, b, c, d, e, m, n, o, p, and x, is independently given by a, c and e are 1 to about 3; b is 1 to about 5; d is 1 to about 5; m and p are 1 to about 100; n is 1 to about 15; o is 0 to about 10; and x is 1 to about 10; and wherein the tire composition is formulated to be vulcanizable to form a tire component compound having a Shore A Hardness of not less than 40 and not greater than 95 and a glass-transition temperature Tg (E″