Title:
RUBBER COMPOSITION FOR TIRE SIDE WALL
Document Type and Number:
Japanese Patent JP2016113492
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve the problems in which: an aging prevention agent is prone to migration due to high molecular polarity and causes deterioration of a tire appearance in long-term use; particularly, use of a phenylene diamine-based aging prevention agent makes the drawback significant; whereas, a tire rubber composition comprises a softener for improved workability but it reduces hardness; and an increased content of carbon black causes, therefore, deterioration of crack resistance.SOLUTION: The above described problem is solved by a rubber composition by blending 100 pts.mass of a diene rubber containing a butadiene rubber of 50 pts.mass, 5.0 pts.mass or less of a phenylene diamine-based aging prevention agent and 0.5 to 30 pts.ass of a styrenated phenol compound mainly containing distyrenated phenol or tristyrenated phenol.SELECTED DRAWING: None
Inventors:
KITAMURA OMIMASA
KAMAHORI AYAKO
HIJIKATA KENSUKE
KAMAHORI AYAKO
HIJIKATA KENSUKE
Application Number:
JP2014251051A
Publication Date:
June 23, 2016
Filing Date:
December 11, 2014
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
C08L9/00; B60C1/00; C08K5/13; C08K5/18
Attorney, Agent or Firm:
Shigeru Noda