Title:
COMPOSITION FOR SIDE WALL OF TIRE
Document Type and Number:
Japanese Patent JPS581735
Kind Code:
A
Abstract:
PURPOSE: To provide the titled compsn. which has improved reversion, crack resistance and tire side wall bare prevention, consisting of a solution-polymerized SBR star polymer and nautral rubber and/or a synthetic diene rubber.
CONSTITUTION: 80W0pts.wt. natural rubber and/or synthetic diene rubber are/is blended with 20W100pts.wt. solution-polymerized SBR star polymer having a styrene content of 20% or lower and a glass transition point of -50°C or lower.
EFFECT: Bare can be prevented because coating of the surface of green tires with carbon paste is unnecessary. Thus, ozone crack due to the carbon paste can be prevented.
Inventors:
SUGA MASANORI
OKAZAKI TAKUYA
SAKASHITA TATSUO
OKAZAKI TAKUYA
SAKASHITA TATSUO
Application Number:
JP10008381A
Publication Date:
January 07, 1983
Filing Date:
June 27, 1981
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO
International Classes:
C08L7/00; B60C1/00; C08L9/00; C08L9/06; C08L15/00; C08L21/00; (IPC1-7): B60C1/00; B60C13/00; C08L7/00; C08L9/00; C08L9/06
Domestic Patent References:
| JPS57100112A | 1982-06-22 | |||
| JP44004996A |
Attorney, Agent or Firm:
Yasushi Oshima
Next Patent: POLYOLEFIN RESIN COMPOSITION