Title:
TIRE
Document Type and Number:
Japanese Patent JP2023104871
Kind Code:
A
Abstract:
To provide a tire improved in uneven wear resistance performance.SOLUTION: A tire comprises a tread part in which a direction of mounting on a vehicle is designated. The tread part has an inner tread rubber layer that constitutes an inner end part side of the vehicle when the tread part is mounted on the vehicle and an outer tread rubber layer constituting an outer end part side of the vehicle. The inner tread rubber layer and the outer tread rubber layer are constituted of rubber compositions including rubber components. The rubber components constituting the outer tread rubber layer include copolymers in which aromatic vinyl compounds and conjugated diene compounds are copolymerized and some of the conjugated diene compounds are hydrogenated. Contents of carbon black with respect to 100 pts.mass of the rubber components of the rubber compositions constituting the outer tread rubber layer are larger than contents of carbon black with respect to 100 pts.mass of the rubber components of the rubber compositions forming the inner tread rubber layer.SELECTED DRAWING: None
Inventors:
SUZUKI YUMI
HAMAMURA KENJI
HAMAMURA KENJI
Application Number:
JP2022167859A
Publication Date:
July 28, 2023
Filing Date:
October 19, 2022
Export Citation:
Assignee:
SUMITOMO RUBBER IND
International Classes:
B60C11/00; B60C1/00; B60C5/00; C08K3/02; C08L9/06; C08L57/02
Attorney, Agent or Firm:
Patent Attorney Corporation Asahina Patent Office
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