公开(公告)号：US20180162165A1

公开(公告)日：2018-06-14

申请号：US15735989

申请日：2016-05-18

Applicant: BRIDGESTONE CORPORATION

Inventor： Akifumi IKUTA

IPC: B60C1/00 ,  C08L7/00 ,  C08K3/04

CPC classification number: B60C1/00 ,  B60C1/0016 ,  B60C11/00 ,  B60C2001/0066 ,  B60C2009/1828 ,  B60C2011/0025 ,  B60C2011/0341 ,  B60C2200/02 ,  C08K3/04 ,  C08K5/25 ,  C08K2003/2296 ,  C08K2201/006 ,  C08L7/00 ,  C08L9/00 ,  C08L91/06

Abstract: Provided is an airplane pneumatic tire whose durability is increased by improvement in heat build-up. The airplane pneumatic tire includes: a tread section having a plurality of circumferential grooves; a carcass toroidally extending from the tread section to a pair of bead sections through a pair of side wall sections; and a belt composed of at least one belt layer arranged on the outer side of a crown portion of the carcass, wherein, when the maximum width of the belt in the tire width direction is defined as W, a rubber having a 25% modulus at 25° C. of not less than 1.2 MPa is arranged in regions of at least 0.2W from each outermost end of the belt toward the tire width direction inner side in the tread section.