Provided are a tire having a small difference in a loss tangent (tan´) at a tire tread outer surface position and that at a middle position, a tread for a retread tire having an even vulcanization degree in a whole tread rubber area, a tire having the tread for the retread tire, and a method for manufacturing the tire. The tire satisfies the following formula: - 0.05 ¤ tan´ a - tan´ b / tan´ b ¤ 0.05 , where (tan´ a ) represents a loss tangent of strain at 2 % at 25 °C in a portion (a) within 1 mm deep from a tire tread outer surface in a direction perpendicular to a tread surface, and (tan´ b ) represents a loss tangent of strain at 2% at 25 °C in a portion (b) within 2 mm from a median center between a tread portion outer surface and a bottom surface in the direction perpendicular to the tread surface.
Tire, tread for retread tire, method for manufacturing the tread for retread tire, retread tire having the tread for retread tire, and method for manufacturing the retread tire
2018-08-28
Patent
Electronic Resource
English
TIRE, RETREAD TIRE, AND RETREAD TIRE MANUFACTURING METHOD
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