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.

公开(公告)号：US10703139B2

公开(公告)日：2020-07-07

申请号：US15514531

申请日：2015-09-29

Applicant: BRIDGESTONE CORPORATION

Inventor： Yuki Itoh

IPC: B60C1/00 ,  B60C5/00 ,  B60C5/01 ,  B60C5/14 ,  C08G69/36 ,  C08G69/40 ,  C08L21/00

Abstract: A tire includes a circular tire frame including a resinous material. The resinous material includes a thermoplastic elastomer including a hard segment (HS) and a soft segment (SS), and 55% or more of molecular chain terminals of the thermoplastic elastomer are hard segments (HS).

公开(公告)号：US10654975B2

公开(公告)日：2020-05-19

申请号：US15513989

申请日：2015-09-24

Applicant: BRIDGESTONE CORPORATION

Inventor： Yuki Itoh ,  Yasunori Tarutani

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

Abstract: A tire including a tire skeleton body that is made of a resin material containing a polyamide-based thermoplastic elastomer and has a ring shape, wherein the polyamide-based thermoplastic elastomer includes a hard segment, a soft segment consisting of a constituent unit derived from polypropylene glycol, and a binding portion that binds two or more segments and that consists of a constituent unit derived from a dicarboxylic acid of from 6 to 20 carbons, the polyamide-based thermoplastic elastomer having a weight average molecular weight of from 20,000 to 250,000.

公开(公告)号：US09447208B2

公开(公告)日：2016-09-20

申请号：US14371355

申请日：2013-01-10

Applicant: BRIDGESTONE CORPORATION

Inventor： Yuki Itoh ,  Masaki Yanagioka

IPC: C08F36/06 ,  C08K3/36 ,  C08C19/44 ,  B60C1/00

CPC classification number: C08F36/06 ,  B60C1/0016 ,  C08C19/44 ,  C08F2810/00 ,  C08K3/36 ,  C08K2201/006 ,  Y02T10/862 ,  C08L15/00

Abstract: An object of the present invention is to provide a rubber composition for a tire, capable of achieving both good rolling resistance properties and good wear resistance in a sufficiently compatible manner when the rubber composition is applied to a component member of a tire. Specifically, the present invention provides a rubber composition comprising a rubber composition and hydrated silica, wherein “CTAB” (m2/g) as specific surface area by cetyltrimethylammonium bromide adsorption and “IB” as ink bottle-shaped micropore index, of the hydrated silica, satisfy a specific relationship and “weight loss on ignition” as weight loss when the hydrate silicate is heated at 750° C. for 3 hours and “weight loss on heating” as weight loss when the hydrate silicate is heated at 105° C. for 2 hours satisfy a specific relationship.

Abstract translation: 本发明的目的是提供一种用于轮胎的橡胶组合物，当将橡胶组合物施加到轮胎的构件上时，能够以充分相容的方式实现良好的滚动阻力性能和良好的耐磨性。 具体地说，本发明提供了一种橡胶组合物，其包含橡胶组合物和水合二氧化硅，其中通过十六烷基三甲基溴化铵吸附作为比表面积的“CTAB”（m2 / g）和水合二氧化硅的“IB”作为墨瓶形微孔指数 满足特定关系，当将水合硅酸盐在750℃下加热3小时时，“加热失重”作为重量损失，当将水合硅酸盐加热至105℃时，将其作为重量损失，作为重量损失。 2小时满足具体关系。

公开(公告)号：US09394321B2

公开(公告)日：2016-07-19

申请号：US14547316

申请日：2014-11-19

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji Nakatani ,  Yuki Itoh

IPC: C08C19/25 ,  C07F7/18 ,  B60C1/00 ,  C08L15/00 ,  C08C19/44

CPC classification number: C07F7/1888 ,  B60C1/0016 ,  C07F7/1876 ,  C08C19/25 ,  C08C19/44 ,  C08L15/00

Abstract: Provided are a modifying agent obtained by subjecting a silicon-containing compound having a protected primary amino group and at least two hydrolyzable groups to complete condensation, a method of producing a modified conjugated diene-based polymer, a modified conjugated diene-based polymer obtained by the production method, a rubber composition using the polymer, and a pneumatic tire. The modified conjugated diene-based polymer has excellent low heat generating property and abrasion resistance, and the rubber composition is obtained by using the modified conjugated diene-based polymer and the pneumatic tire is obtained by using the rubber composition.

Abstract translation: 提供了通过使具有被保护的伯氨基和至少两个可水解基团的含硅化合物进行缩合而得到的改性剂，改性共轭二烯系聚合物的制造方法，改性共轭二烯系聚合物 该制造方法，使用该聚合物的橡胶组合物和充气轮胎。 改性共轭二烯类聚合物具有优异的低发热性和耐磨性，通过使用改性共轭二烯系聚合物得到橡胶组合物，通过使用橡胶组合物得到充气轮胎。

公开(公告)号：US09683080B2

公开(公告)日：2017-06-20

申请号：US14779972

申请日：2014-03-27

Applicant: BRIDGESTONE CORPORATION

Inventor： Hiroyuki Fudemoto ,  Yasunori Tarutani ,  Yuki Itoh

IPC: B60C1/00 ,  C08G69/10 ,  B60C5/01 ,  C08G69/40 ,  C08G69/44 ,  B60C9/22 ,  B29D30/06 ,  B60C5/00 ,  B29D30/32

CPC classification number: C08G69/10 ,  B29D30/0678 ,  B29D2030/3285 ,  B60C1/00 ,  B60C1/0041 ,  B60C5/007 ,  B60C5/01 ,  B60C9/2204 ,  C08G69/40 ,  C08G69/44

Abstract: A tire includes a circular tire frame formed of a resin material, the resin material including a polyamide-based thermoplastic elastomer having a weight average molecular weight of from 15,700 to 75,000. Included with the tire may be side portions and a crown portion that serves as an outer peripheral portion that is in communication with the side portions.