公开(公告)号：US10442922B2

公开(公告)日：2019-10-15

申请号：US15547845

申请日：2016-02-04

Applicant: BRIDGESTONE CORPORATION

Inventor： Hiroyuki Fudemoto ,  Soichi Kyo ,  Atsuko Honjyo ,  Takahiro Suzuki ,  Naoyuki Sone

IPC: C08L23/12 ,  B60C1/00 ,  C08L53/00 ,  B29D30/38 ,  B29D30/06 ,  C08L23/08 ,  B29K23/00

Abstract: A tire having a circular tire frame formed of a resin material, the resin material including an olefin-based resin composition and having a tensile elastic modulus as defined in JIS K7113 (1995) of from 140 MPa to 570 MPa and an amount of creep as defined in JIS K7115 (1999) of 50 mm or less, and a degree of crystallinity of the polypropylene-based resin being from 24.5% to 32.7%.

公开(公告)号：US10654978B2

公开(公告)日：2020-05-19

申请号：US15513557

申请日：2015-09-24

Applicant: BRIDGESTONE CORPORATION

Inventor： Yuki Itoh ,  Soichi Kyo

IPC: B60C1/00 ,  C08G81/00 ,  C08G69/40 ,  C08G69/14 ,  C08G69/36

Abstract: A tire including a tire frame that is formed of a resin material and has a circular form, the resin material including a thermoplastic elastomer having a hard segment and a soft segment, and a polymer compound that has the same structural unit as the structural unit of the soft segment and which is different from the thermoplastic elastomer, a content of the polymer compound in the tire frame being from 0.20 parts by mass to 2.5 parts by mass with respect to 100 parts by mass of the thermoplastic elastomer contained in the tire frame.