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Title:
RUBBER COMPOSITION FOR HEAVY-DUTY TIRE, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2019/044892
Kind Code:
A1
Abstract:
A rubber composition for heavy-duty tires with which a heavy-duty tire can be produced that exhibits both low heat generation properties and excellent wear resistance, and a tire tread, a bead filler, a tire belt and a heavy-duty tire using said rubber composition in a portion thereof are provided. This rubber composition for a heavy-duty tire contains, for 100 parts by mass of a solid rubber (A), 0.1-50 parts by mass of a modified liquid diene rubber (B) having a functional group derived from a silane compound having a specific structure, and 20-200 parts by mass of a filler (C), wherein the modified liquid diene rubber (B) satisfies (i) and (ii) below. (i) The weight average molecular weight (Mw) is 1,000 to 120,000 (ii) The vinyl content is less than 30 mol%.

Inventors:
KODA DAISUKE (JP)
KANBARA HIROSHI (JP)
Application Number:
PCT/JP2018/031915
Publication Date:
March 07, 2019
Filing Date:
August 29, 2018
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
C08L21/00; B60C1/00; B60C15/06; C08K3/04; C08K3/36; C08K5/54; C08L7/00; C08L9/00; C08L15/00
Domestic Patent References:
WO2018043699A12018-03-08
WO2018043700A12018-03-08
Foreign References:
JP2013249359A2013-12-12
JP2015218237A2015-12-07
JPS61197646A1986-09-01
JP2002114874A2002-04-16
JP2016113588A2016-06-23
JP2014098102A2014-05-29
JPS62112618A1987-05-23
JP2004262170A2004-09-24
JP2013023568A2013-02-04
JP2000219778A2000-08-08
JP2014012768A2014-01-23
JP2011132298A2011-07-07
Other References:
See also references of EP 3677636A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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