Title:
RUBBER COMPOSITION, VULCANIZED RUBBER, RUBBER PRODUCT, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2018/225566
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a rubber composition for a vulcanized rubber having excellent wear resistance, a high elongation at break, and a high strength at break; a vulcanized rubber obtained by vulcanizing the rubber composition; a rubber product; and a tire, wherein the rubber product and the tire contain the rubber composition or the vulcanized rubber. This rubber composition contains a rubber component (A), a foaming agent (B), and a polyhydric alcohol (C) having three or more hydroxyl groups in one molecule, wherein the rubber component (A) contains 30 mass% or more of natural rubber with respect to the total amount of the rubber component, and the content of the polyhydric alcohol (C) is 1-6 parts by mass with respect to 100 parts by mass of the rubber component (A).
Inventors:
SHODA YASUHIRO (JP)
HASHIGUCHI MAKOTO (JP)
SHIONO SAAYA (JP)
HASHIGUCHI MAKOTO (JP)
SHIONO SAAYA (JP)
Application Number:
PCT/JP2018/020396
Publication Date:
December 13, 2018
Filing Date:
May 28, 2018
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L7/00; B60C1/00; C08J9/10; C08K5/053; C08K5/23; C08K5/3477
Domestic Patent References:
| WO2017195409A1 | 2017-11-16 |
Foreign References:
| JPS51125439A | 1976-11-01 | |||
| JPH0984630A | 1997-03-31 | |||
| JP2009062438A | 2009-03-26 | |||
| JPS52128691A | 1977-10-28 | |||
| CN105419123A | 2016-03-23 | |||
| JP2014172379A | 2014-09-22 |
Other References:
See also references of EP 3636703A4
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
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