Title:
RADIAL TIRE IMPROVED IN ITS DURABILITY ON BAD LOAD
Document Type and Number:
Japanese Patent JPS6127703
Kind Code:
A
Abstract:
PURPOSE:To increase carbon reinforcement effect as well as make a cross bridge form effective and thereby improve durability of a tire on a bad road by compounding specific carbon black while properly compounding a vulcanizer and a vulcanizing accelerator. CONSTITUTION:Blend rubber comprising 50-90wt.pts. of natural rubber and 50- 10wt.pts. of polyisoprene rubber is employed as a base for a tread rubber composition. 40-60wt.pts. of carbon black of a specific physical property is compounded for 100wt.pts. of such blend rubber. Here, the carbon black of the specific physical property is highly reinforcing carbon black having: a nitrided surface area of 115-150m<2>/g, the amount of absorption of dibutylphthalate of 105- 150m<2>/g, and the degree of coloration more than 110%. In addition, 1.0-1.5wt. pts. of sulfer are compounded for 100wt.pts. of the blend rubber, while 2.2wt.pts. or more of the total compounding amount of a vulcanizing accelerator and the sulfur are employed for 100wt.pts. of the blend rubber.
Inventors:
ENOMOTO TADASHIGE
KAWAKAMI SHINJI
HIRAKAWA HIROSHI
KAWAKAMI SHINJI
HIRAKAWA HIROSHI
Application Number:
JP14674484A
Publication Date:
February 07, 1986
Filing Date:
July 17, 1984
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD
International Classes:
C08L7/00; B60C1/00; B60C11/00; C08K3/00; C08K3/04; C08K3/18; C08K3/22; C08K3/30; C08K5/09; C08K13/02; C08L9/00; C08L21/00; (IPC1-7): B60C1/00; B60C11/00; C08K3/04; C08K3/22; C08K3/30; C08K5/09; C08K13/02; C08L7/00; C08L9/00
Domestic Patent References:
| JPS52101503A | 1977-08-25 | |||
| JPS5513724A | 1980-01-30 | |||
| JPS55132305A | 1980-10-15 | |||
| JPS547450A | 1979-01-20 |
Attorney, Agent or Firm:
Shinichi Ogawa
Previous Patent: A weight detection sensor and a vehicular seat device
Next Patent: PAPER SIZE DISPLAY DEVICE FOR PAPER FEED CASSETTE
Next Patent: PAPER SIZE DISPLAY DEVICE FOR PAPER FEED CASSETTE