Title:
ANTI-VIBRATION RUBBER COMPOSITION AND ANTI-VIBRATION RUBBER MEMBER
Document Type and Number:
WIPO Patent Application WO/2020/202597
Kind Code:
A1
Abstract:
An anti-vibration rubber composition containing the following (C) and (D) components, and a polymer made from the following (A) and (B) components, wherein the ratio of the (A) and the (B) components, by weight, is in a range where (A)/(B)=9/1-2/8. The present invention thereby satisfies characteristics required for an anti-vibration rubber such as reducing dynamic magnification, while also improving workability of the rubber composition with respect to roll kneading, etc. (A) Natural rubber. (B) Polyisoprene rubber. (C) A filler agent. (D) A dihydrazide compound represented by general formula (1). (In general formula (1), R represents a C1-C30 alkylene group, a C3-C30 cycloalkylene group, or a phenylene group.)
Inventors:
OKAHISA MASASHI (JP)
KASAI SEIJI (JP)
KASAI SEIJI (JP)
Application Number:
PCT/JP2019/034462
Publication Date:
October 08, 2020
Filing Date:
September 02, 2019
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
C08L7/00; C08K3/04; C08K3/36; C08K5/24; C08L9/00
Foreign References:
| JP2016084405A | 2016-05-19 | |||
| JP2012082251A | 2012-04-26 | |||
| JP2006104372A | 2006-04-20 | |||
| JP2015224279A | 2015-12-14 | |||
| JP2014501827A | 2014-01-23 | |||
| US4103077A | 1978-07-25 | |||
| CN109251375A | 2019-01-22 |
Attorney, Agent or Firm:
SAITOH Yukihiko et al. (JP)
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