公开(公告)号：US20180142085A1

公开(公告)日：2018-05-24

申请号：US15572993

申请日：2016-05-31

Applicant: BRIDGESTONE CORPORATION

Inventor： Masaaki YAMAMOTO

IPC: C08L7/00 ,  C08L9/00 ,  C08K3/04 ,  C08K3/36 ,  C08K5/31

CPC classification number: C08L7/00 ,  C08K3/04 ,  C08K3/36 ,  C08K5/31 ,  C08K2201/006 ,  C08L9/00 ,  F16F15/08 ,  C08K5/548

Abstract: The present invention provides a rubber composition and an anti-vibration rubber composition both comprising: a rubber component containing at least a natural rubber and a high-cis isoprene rubber having a content of cis-1,4 bond of 95% by mass or more; a carbon black having an iodine adsorption number of 35 mg/g or less and a DBP adsorption number of 75 ml/100 g or less; a silica having a nitrogen adsorption specific surface area (the BET method) of 80 m2/g or more and less than 240 m2/g; and a compound represented by the following general formula (1), (wherein m and n each independently represent an integer of 1 or more), and an anti-vibration rubber obtained by curing the rubber composition. The rubber composition and the anti-vibration rubber composition have a low dynamic magnification, are excellent in fatigue property and can retain scorch resistance (work stability).

公开(公告)号：US20170029602A1

公开(公告)日：2017-02-02

申请号：US15303810

申请日：2015-05-13

Applicant: BRIDGESTONE CORPORATION

Inventor： Masaaki YAMAMOTO

IPC: C08L7/00 ,  C08L9/00

CPC classification number: C08L7/00 ,  C08K5/435 ,  C08L9/00 ,  C08L2205/02 ,  C08L2205/06 ,  C08L2312/00

Abstract: The present invention addresses the problem of providing a rubber vibration isolator composition with which low temperature characteristics can be significantly improved while maintaining basic strength characteristics (hardness, tensile elongation, tensile strength), and a rubber vibration isolator obtained by curing said rubber composition. The present invention provides a rubber vibration isolator composition characterized in containing natural rubber, high cis content isoprene rubber, a crosslinking agent and an aromatic sulfonamide having a specified chemical structure. The high cis content isoprene rubber refers to the cis-1,4 bond content being at least 95%.

Abstract translation: 本发明解决了提供一种可以显着改善低温特性同时保持基本强度特性（硬度，拉伸伸长率，拉伸强度）的橡胶隔振器组合物和通过固化所述橡胶组合物获得的橡胶隔振器的问题。 本发明提供一种橡胶隔振器组合物，其特征在于包含天然橡胶，高顺式含量的异戊二烯橡胶，交联剂和具有特定化学结构的芳族磺酰胺。 高顺式含量异戊二烯橡胶是指顺式-1,4键含量至少为95％。