Title:
PNEUMATIC RADIAL TIRE
Document Type and Number:
Japanese Patent JPH079811
Kind Code:
A
Abstract:
PURPOSE: To improve the durability of the cushion rubber of the edge of a belt layer and further, improve the durability to the separation between belt layers.
CONSTITUTION: Belt layers 4a-4d consisting of metallic cords 4 are provided between a curcus layer 2 and a tread 1, and cushion rubber 6 is inserted between the layers at both ends in width direction of two belt layers 4b and 4c. The cushion rubber 6 is constituted of a rubber composition where organic acid cobalt salt containing boron is mixed by 0.3-2 pts.wt. to 100 pts.wt. of material rubber.
Inventors:
TSUJI MITSUO
IUMI KOICHI
IUMI KOICHI
Application Number:
JP15235993A
Publication Date:
January 13, 1995
Filing Date:
June 23, 1993
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
B60C1/00; B60C9/18; (IPC1-7): B60C9/18; B60C1/00
Domestic Patent References:
| JPH05104678A | 1993-04-27 | |||
| JPH0299406A | 1990-04-11 | |||
| JPS60193701A | 1985-10-02 | |||
| JPS6015444A | 1985-01-26 |
Attorney, Agent or Firm:
Shinichi Ogawa (2 outside)
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