Title:
RUBBER COMPOSITION FOR CONVEYOR BELT, AND RUBBER FOR CONVEYOR BELT COVER AND CONVEYOR BELT IN WHICH COMPOSITION IS USED
Document Type and Number:
WIPO Patent Application WO/2014/171419
Kind Code:
A1
Abstract:
The purpose is to manufacture, as a rubber composition that has improved wear resistance and workability and that is suitable for use as a rubber cover for the upper surface of a conveyor belt, a rubber composition containing: a rubber component containing 10 to 40 mass parts of natural rubber and 60 to 90 mass parts of butadiene rubber polymerized using a neodymium-based catalyst; and, in relation to 100 mass parts of the rubber component, 50 to 70 mass parts of carbon black having a nitrogen adsorption specific surface area of 100 m2/g or above, 5 to 15 mass parts of silica, and 5 to 15 mass parts of a resin having a softening point of 120°C or below; no silane coupling agent being contained in the rubber composition. In addition, the purpose is to manufacture a conveyor belt using the rubber composition as a rubber cover.
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Inventors:
ISHIKAWA TETSUYA (JP)
Application Number:
PCT/JP2014/060594
Publication Date:
October 23, 2014
Filing Date:
April 14, 2014
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L9/00; B29D29/06; B65G15/32; C08K3/04; C08K3/36; C08L7/00
Domestic Patent References:
| WO2013088743A1 | 2013-06-20 |
Foreign References:
| JP2003105136A | 2003-04-09 | |||
| JP2009215339A | 2009-09-24 | |||
| JP2006199892A | 2006-08-03 | |||
| JP2000198517A | 2000-07-18 | |||
| JP2002069241A | 2002-03-08 | |||
| JP2006104372A | 2006-04-20 |
Attorney, Agent or Firm:
FUJIMOTO Eisuke et al. (JP)
Eisuke Fujimoto (JP)
Eisuke Fujimoto (JP)
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