Invention Grant
- Patent Title: Rubber composition, tire, bisphenyldiamine compound, and anti-aging agent
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Application No.: US15312768Application Date: 2015-05-22
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Publication No.: US10011704B2Publication Date: 2018-07-03
- Inventor: Aya Saiki , Hidehiro Minashima , Yuzaburo Yano , Noriaki Shiina , Kazuhiro Kodama , Mifuyu Ueno , Takashi Sato , Shinya Nakashima , Masaki Abe
- Applicant: OTSUKA CHEMICAL CO., LTD.
- Applicant Address: JP Osaka-shi, Osaka
- Assignee: OTSUKA CHEMICAL CO., LTD.
- Current Assignee: OTSUKA CHEMICAL CO., LTD.
- Current Assignee Address: JP Osaka-shi, Osaka
- Agency: Kenja IP Law PC
- Priority: JP2014-106393 20140522
- International Application: PCT/JP2015/002596 WO 20150522
- International Announcement: WO2015/178037 WO 20151126
- Main IPC: C08K5/18
- IPC: C08K5/18 ; C07C211/55 ; B60C1/00 ; C07C211/51 ; C07C237/04 ; C08K5/20 ; C08L9/00 ; C08L7/00 ; C07C211/53

Abstract:
Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit rubber article surface discoloration. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisphenyldiamine compound represented by formula (I). In formula (I), R1, R2, R5, and R6 each represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of 1-10, or a phenyl group, but R1 and R2 do not both simultaneously represent a hydrogen atom and R5 and R6 do not both simultaneously represent a hydrogen atom, R3 and R4 each represent, independently of one another, an alkyl group having a carbon number of 1-8 or an aralkyl group, A represents an alkylene group having a carbon number of 1-12, and l, m, and n each represent an integer of 0 or 1.
Public/Granted literature
- US20170137604A1 RUBBER COMPOSITION, TIRE, BISPHENYLDIAMINE COMPOUND, AND ANTI-AGING AGENT Public/Granted day:2017-05-18
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