Title:
COATING RUBBER COMPOSITION FOR CONVEYOR BELT
Document Type and Number:
WIPO Patent Application WO/2015/163168
Kind Code:
A1
Abstract:
A coating rubber composition for a conveyor belt, obtained by blending 15-75 parts by mass of carbon black having a nitrogen adsorption specific surface area of 50 m2/g or less, 25-100 parts by mass of calcium carbonate, and 40 parts by mass or less of an oil per 100 parts by mass of a rubber blend of natural rubber and butadiene rubber and/or SBR. Through this coating rubber composition for a conveyor belt, not only is peeling force as an indicator of adhesion to canvas improved, but power-saving properties can be enhanced while maintaining durability of the conveyor belt. By further blending 5-20 parts by mass of silica in the composition, adhesion of the rubber to canvas during overvulcanization can be ensured while peeling force during normal vulcanization is maintained.
Inventors:
SASAKUMA HIDEHIRO (JP)
SUEFUJI RYOTARO (JP)
KOU KUN (JP)
MIYAJIMA ATSUSHI (JP)
SUEFUJI RYOTARO (JP)
KOU KUN (JP)
MIYAJIMA ATSUSHI (JP)
Application Number:
PCT/JP2015/061261
Publication Date:
October 29, 2015
Filing Date:
April 10, 2015
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08L7/00; B32B25/10; B65G15/34; C08K3/04; C08K3/26; C08L9/00; C08L91/00
Foreign References:
| JP2009292960A | 2009-12-17 | |||
| JP2009040815A | 2009-02-26 |
Attorney, Agent or Firm:
YOSHIDA Toshio et al. (JP)
Toshio Yoshida (JP)
Toshio Yoshida (JP)
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