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RUBBER COMPOSITION FOR TIRE SIDEWALL AND PNEUMATIC TIRE 发明申请

2023-07-02 1770 567K 0

专利信息

申请日期 2025-07-10 申请号 US13718265
公开(公告)号 US20130225757A1 公开(公告)日 2013-08-29
公开国别 US 申请人省市代码 全国
申请人 TOYO TIRE RUBBER CO LTD
简介 A rubber composition for a tire sidewall includes 100 parts by mass of a rubber component comprising from 40 to 70% by mass of natural rubber and/or an isoprene rubber, and from 60 to 30% by mass of a butadiene rubber having 96% or more of cis-1, 4 bond content, polymerized using a rare earth element-based catalyst, from 25 to 50 parts by mass of a filler comprising carbon black and/or silica, and from 0.3 to 3 parts by mass of a vulcanization accelerator, wherein the vulcanization accelerator comprises from 0.1 to 1.5 parts by mass of a sulfenimide compound represented by the following formula (1) and a sulfenamide-based vulcanization accelerator; wherein R represents a hydrocarbon group having from 1 to 18 carbon atoms.


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