Title:
VULCANIZED RUBBER AND PRODUCTION METHOD OF VULCANIZED RUBBER
Document Type and Number:
Japanese Patent JP2020117682
Kind Code:
A
Abstract:
To provide a vulcanized rubber that is excellent in both of visibility of a marking generated on a vulcanized rubber and durability of the vulcanized rubber, and a production method of such vulcanized rubber.SOLUTION: A vulcanized rubber is obtained by vulcanizing an inflammable rubber composition that contains, relative to 100 pts.mass of a rubber component, 2 pts.mass or larger and 150 pts.mass or smaller of carbon black, 0.2 pt.mass or larger of a pigment, and a vulcanizing agent, and has a marking of a color generated by heating the vulcanized rubber with heating means. When the color is expressed as (L*, a*, b*) based on a L*a*b* notation of JIS Z8781, the color is a color of chroma satisfying [(a*)+(b*)]≥10. A production method of the vulcanized rubber comprises a step of generating a marking of the color by heating the vulcanized rubber with heating means.SELECTED DRAWING: None
Inventors:
HATANAKA SHINTARO
MATSUI HIDEKI
OSAWA YASUO
OGIWARA AKIKO
MATSUI HIDEKI
OSAWA YASUO
OGIWARA AKIKO
Application Number:
JP2019174694A
Publication Date:
August 06, 2020
Filing Date:
September 25, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
C08J7/00; B60C1/00; C08J3/24
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kazuyuki Tomita
Mitsutsugu Sugimura
Kazuyuki Tomita