• 专利标题:   Tire for vehicle includes bead overlapping portion that is arranged to overlap the bead portion and having first layer containing graphene and second layer adjacent to the first layer and containing rubber.
  • 专利号:   KR2021062355-A, KR2284166-B1
  • 发明人:   KIM W
  • 专利权人:   NEXEN TIRE CORP
  • 国际专利分类:   B60C009/02, B60C009/04
  • 专利详细信息:   KR2021062355-A 31 May 2021 B60C-009/04 202148 Pages: 40
  • 申请详细信息:   KR2021062355-A KR150486 21 Nov 2019
  • 优先权号:   KR150486

▎ 摘  要

NOVELTY - The tire (100) includes a sidewall (180) adjacent to the tread portion (110) and including an area spaced apart from the road surface. A bead is connected to the sidewall and disposed closer to the central axis of the tire than the tread. The bead overlapping portion is arranged to overlap the bead portion and having a first layer containing graphene and a second layer adjacent to the first layer and containing rubber. USE - Tire for vehicle. ADVANTAGE - The tire achieves improved driving characteristics, durability, and fuel efficiency while traversing the road surface. The low thermal expansion coefficient of the first layer containing graphene makes it possible to suppress the increase of the thermal expansion rate of the bead overlapping portion. The tire is prevented from being deformed or damaged, and as a result, the durability of the tire can be improved and the life span can be increased. The weight of the bead overlapping portion can be effectively reduced, improving the strength of the bead portion, improving elasticity, and reducing the weight so as to improve fuel economy of a vehicle equipped with the tire. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic front view of the tire. Tire (100) Tread portion (110) Sidewall (180) Horizontal direction (X) Vertical direction (Z)