Title:
RUBBER COMPOSITION AND TIRE
Document Type and Number:
WIPO Patent Application WO/2021/193076
Kind Code:
A1
Abstract:
Provided is a rubber composition having satisfactory low heat buildup properties and excellent wear resistance. The rubber composition comprises a rubber ingredient and carbon blacks, and is characterized in that the rubber ingredient comprises natural rubber and butadiene rubber, the proportion of the natural rubber being less than 80 mass%, the carbon blacks are contained in an amount of 40-100 parts by mass per 100 parts by mass of the rubber ingredient, and if carbon blacks A, B, and C are defined by given conditions, then said carbon blacks comprise carbon black A and carbon black B and the content of carbon black C therein is zero or is the least of the contents of the carbon blacks A to C.
Inventors:
MITO KEI (JP)
MIYAZAKI TORU (JP)
MIYAZAKI TORU (JP)
Application Number:
PCT/JP2021/009642
Publication Date:
September 30, 2021
Filing Date:
March 10, 2021
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60C1/00; C08K3/04; C08L7/00; C08L9/00
Foreign References:
| JP2000230079A | 2000-08-22 | |||
| JP2008088311A | 2008-04-17 | |||
| JP2014009243A | 2014-01-20 | |||
| JP2011026392A | 2011-02-10 | |||
| JP2015164985A | 2015-09-17 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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