Title:
SEALANT MATERIAL COMPOSITION
Document Type and Number:
Japanese Patent JP2022029223
Kind Code:
A
Abstract:
To provide a sealant material composition capable of exhibiting good sealability, suppressing flow of a sealant material during travel, securing sufficient adhesiveness to a tire, and satisfactorily maintaining durability of the tire while satisfactorily maintaining these performances over a long period of time.SOLUTION: A sealant material composition constituting a sealant layer 10 arranged on an inner surface of a pneumatic tire contains 0.1-40 pts.mass of sulfur, more than 0 pt.mass and less than 1 pt.mass of a crosslinking aid, and 50-400 pts.mass of a plasticizer component based on 100 pts.mass of a rubber component and has a shear modulus at 20°C of 5-30 kPa, a shear modulus at 80°C of 1-10 kPa, and a maximum value of tanδ measured in a temperature range of 20-100°C of 1.0 or less.SELECTED DRAWING: Figure 1
Inventors:
TAKAHASHI KIYOTO
Application Number:
JP2020132458A
Publication Date:
February 17, 2022
Filing Date:
August 04, 2020
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
C09K3/10; B29C73/22; B60C1/00; B60C19/12
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Daytime Takayoshi
Sakazawa Masao
Daytime Takayoshi
Sakazawa Masao