RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE, AND TIRE

Title:

RUBBER COMPOSITION, RUBBER COMPOSITION FOR TIRE, AND TIRE

Document Type and Number:

WIPO Patent Application WO/2020/235230

Kind Code:

A1

Abstract:

Provided is a rubber composition for producing a vulcanized rubber having excellent cracking resistance and a low heat generation property while maintaining workability. The rubber composition contains a rubber component containing at least one diene rubber, a filler that contains at least silica, a vulcanizer, a compound represented by formula (1), a compound represented by formula (2), and a vulcanization promoter other than the compound represented by formula (1). The total amount of the vulcanization promoter and the compound represented by formula (1) is greater than 1.4 parts by mass per 100 parts by mass of the rubber component.

More Like This:

WO/2001/049781	RUBBER COMPOSITION FOR A TYRE, COMPRISING A COUPLING AGENT (WHITE FILLER/DIENIC ELASTOMER) ACTIVATED BY A HEAT-INITIATED RADICAL STARTER
JP7139947	Rubber composition for tread and tire
JP6539731	A diene elastomer having a silanol functional group at the end of a chain and having a low PI, and a composition containing the same.

Inventors:

NAGANO DAIJIRO (JP)

Application Number:

PCT/JP2020/015205

Publication Date:

November 26, 2020

Filing Date:

April 02, 2020

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Assignee:

BRIDGESTONE CORP (JP)

International Classes:

B60C1/00; C08K3/36; C08K5/40; C08K5/43; C08L7/00

Domestic Patent References:

WO2019107428A1

2019-06-06

Foreign References:

US20100000639A1	2010-01-07
JP2005105154A	2005-04-21

Attorney, Agent or Firm:

OHTANI PATENT OFFICE (JP)

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