Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RUBBER COMPOSITION FOR HEAVY-DUTY TIRE, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2019/044893
Kind Code:
A1
Abstract:
A rubber composition for heavy-duty tires which exhibits excellent wet grip performance and steering stability, 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 represented by formula (1), 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 greater than or equal to 30 mol% and less than 70 mol%.

Inventors:
KODA Daisuke (36, Towada, Kamisu-sh, Ibaraki 97, 〒3140197, JP)
KANBARA Hiroshi (36, Towada, Kamisu-sh, Ibaraki 97, 〒3140197, JP)
Application Number:
JP2018/031916
Publication Date:
March 07, 2019
Filing Date:
August 29, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KURARAY CO., LTD. (1621, Sakazu Kurashiki-sh, Okayama 01, 〒7100801, 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:
JP2002114874A2002-04-16
JP2015218237A2015-12-07
US20150119528A12015-04-30
JP2004262170A2004-09-24
JP2013023568A2013-02-04
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (Gotanda Yamazaki Bldg. 6F, 13-6 Nishigotanda 7-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
Download PDF: