RADIAL TIRE FOR HEAVY VEHICLE WITH IMPROVED DURABILITY

摘要

PURPOSE:To improve durability by forming a space rubber and a soft stiffener rubber with a rubber composition to which a specified quantities of a specific bismaleiamide derivative and a C-nitro-compound are added. CONSTITUTION:A space rubber 7 which is provided on the end part of a belt layer 4 and a soft stiffer rubber 8 which wraps in the end part of a carcass which is folded back at a bead part 1, are formed by a rubber composition which is formed by adding a 0.2-10pts.wt. of bismaleiamide derivative whose general formula is represented by the formula I and a 0.2-5pts.wt. of a C-nitro- compound, to a 100pts.wt. of rubber component consisting of a rubber which is selected from a group consisting of a natural rubber and a diene group synthetic rubber. Due to this formation, durability can be improved.