ANTI-VIBRATION RUBBER COMPOSITION AND ANTI-VIBRATION RUBBER MEMBER

Title:

ANTI-VIBRATION RUBBER COMPOSITION AND ANTI-VIBRATION RUBBER MEMBER

Document Type and Number:

WIPO Patent Application WO/2020/066550

Kind Code:

A1

Abstract:

This anti-vibration rubber composition contains: a polymer comprising component (A); and components (B)-(E). The mix ratio of components (B) and (C) is in a range of (B)/(C) = 99/1 to 96/4 in weight ratio. As a result, it becomes possible to achieve a low dynamic-to-static modulus ratio and achieve durability and weather resistance both at high levels. (A): Diene rubber. (B): Silica. (C): Carbon black. (D): Silane coupling agent. (E): A dihydrazide compound represented by general formula (1) (in general formula (1), R represents an alkylene group having 1-30 carbon atoms, a cycloalkylene group having 1-30 carbon atoms, or a phenylene group).

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Inventors:

OKAHISA MASASHI (JP)
KASAI SEIJI (JP)

Application Number:

PCT/JP2019/035149

Publication Date:

April 02, 2020

Filing Date:

September 06, 2019

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Assignee:

SUMITOMO RIKO CO LTD (JP)

International Classes:

C08L9/00; C08K3/04; C08K3/36; C08K5/25; C08K5/548; F16F1/36; F16F15/08; F16F15/124

Domestic Patent References:

WO2016111233A1

2016-07-14

Foreign References:

JP2012513517A	2012-06-14
JP2015224279A	2015-12-14
JP2009256580A	2009-11-05
JP2013144761A	2013-07-25
JP2010174127A	2010-08-12
CN103524793A	2014-01-22

Attorney, Agent or Firm:

SAITOH Yukihiko et al. (JP)

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