Title:
ADHESIVE SEALANT MATERIAL
Document Type and Number:
Japanese Patent JP2022029222
Kind Code:
A
Abstract:
To provide an adhesive sealant material capable of exhibiting good sealability even under a low-temperature environment, suppressing flow during travel, securing sufficient adhesiveness to a tire, and satisfactorily maintaining these performances over a long period of time.SOLUTION: An adhesive sealant material constituting a sealant layer 10 arranged on an inner surface of a pneumatic tire is composed of a sealant material composition which 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 pts.mass or more of a plasticizer component based on 100 pts.mass of a rubber component. Viscosity V1 measured under a condition of -20°C immediately after vulcanization is set to 20 kPa s or less, and a viscosity difference ΔV between the viscosity V1 and viscosity V2 measured under a condition of -20°C after storage for two weeks in a 30°C environment from immediately after vulcanization is set to 5 kPa s or less.SELECTED DRAWING: Figure 1
Inventors:
TAKAHASHI KIYOTO
Application Number:
JP2020132457A
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