	US 11,987,703 B2
	Rubber composition and tire
Kensuke Washizu, Kobe (JP)
Assigned to Sumitomo Rubber Industries, Ltd., Hyogo (JP)
Appl. No. 17/261,843
Filed by Sumitomo Rubber Industries, Ltd., Hyogo (JP)
PCT Filed Jul. 23, 2019, PCT No. PCT/JP2019/028826 § 371(c)(1), (2) Date Jan. 20, 2021, PCT Pub. No. WO2020/022325, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 2018-141904 (JP), filed on Jul. 27, 2018.
Prior Publication US 2021/0301109 A1, Sep. 30, 2021
Int. Cl. C08L 9/00 (2006.01); B60C 1/00 (2006.01); C08L 9/06 (2006.01); C08L 15/00 (2006.01); C08L 71/02 (2006.01); C08L 71/03 (2006.01)

CPC C08L 9/00 (2013.01) [B60C 1/0016 (2013.01); C08L 9/06 (2013.01); C08L 15/00 (2013.01); C08L 71/02 (2013.01); C08L 71/03 (2013.01)]

14 Claims

1. A tire, comprising:

a tire component, the tire component including:

a rubber composition, having a hardness that reversibly changes with water and satisfying the following relationship (1):

Hardness when dry−Hardness when water-wet≥10 (1)

wherein each hardness represents a JIS-A hardness at 25° C. of the rubber composition,

wherein the hardness when dry is in a range of 55-60, and the hardness when water-wet is in a range of 32-47.