RUBBER COMPOSITION, TIRE RUBBER COMPOSITION, AND SHOE SOLE RUBBER COMPOSITION

WIPO Patent Application WO/2021/054429

A1

Provided are: a rubber composition for a tire, a shoe sole, or the like, or a rubber composition whereby abrasion resistance and ice grip performance of an article that includes a crosslinked product of the rubber composition can both be enhanced; a tire rubber composition; and a shoe sole rubber composition.　A rubber composition containing a conjugated diene branched copolymer (A), the conjugated diene branched copolymer (A) including two or more types of polymer segments including conjugated diene units having different contents (1,4- bond contents) of conjugated diene units bonded by 1,4- bonds, the difference (∆14 = D14(α1) – D14(α2)) between the mol% 1,4- bond content D14(α1) of a polymer segment (α1) including conjugated diene units having the highest 1,4- bond content and the mol% 1,4- bond content D14(α2) of a polymer segment (α2) including conjugated diene units having the lowest 1,4- bond content being 5 mol% or greater.

JP3009427	[Title of Invention] Toothed Belt
JP2020117601	RUBBER COMPOSITION FOR TIRE
JP6091305	A manufacturing method of a fire retardant melt kneading thing and the polystyrene system resin extrusion foaming object using this

UENO YOSHIKAZU (JP)
KANBARA HIROSHI (JP)
INATOMI ATSUSHI (JP)
TAKAI JUNYA (JP)
MA ZHAOMING (JP)

PCT/JP2020/035409

March 25, 2021

September 18, 2020

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KURARAY CO (JP)

C08L15/00; A43B13/04; B60C1/00; C08C19/00; C08C19/25; C08K3/36; C08L21/00

WO2008041631A1	2008-04-10
WO2014123163A1	2014-08-14

JPS62135506A	1987-06-18
JPH01297412A	1989-11-30
JPH1129660A	1999-02-02
JP2002012702A	2002-01-15
JP2019002028A	2019-01-10
JP2018115239A	2018-07-26
JP2010126540A	2010-06-10

SSINPAT PATENT FIRM (JP)

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