Tire running tread, useful for winter tires and tires equipped for heavy load vehicles, comprises a rubber composition having diene elastomer, reinforcing filler, vulcanization system and guar gum powder

摘要

Tire running tread (I) comprises a rubber composition (II) having at least one diene elastomer, reinforcing filler and vulcanization system, where (II) comprises a guar gum powder of 10-40 parts by weight for 100 parts of the elastomer. Independent claims are included for: (1) a method for preparing (II) comprising a first phase of mixing thermomechanical constituents of (II), except the vulcanization system, and incorporating the guar gum powder during the first phase of mixing; (2) a tire and a winter tire comprising (I); and (3) a tire, equipped for heavy load vehicles, comprising (I).