Invention Grant
- Patent Title: Rubber composition and pneumatic tire
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Application No.: US16073985Application Date: 2016-11-30
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Publication No.: US10738181B2Publication Date: 2020-08-11
- Inventor: Tatsuya Miyazaki , Naoya Hashimoto , Kouji Kawaguchi
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Hyogo
- Agency: Studebaker & Brackett PC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7b325efa
- International Application: PCT/JP2016/085489 WO 20161130
- International Announcement: WO2017/145480 WO 20170831
- Main IPC: B60C1/00
- IPC: B60C1/00 ; C08K3/36 ; C08K5/17 ; C08K5/20 ; C08L21/00 ; C08C19/25 ; C08C19/44 ; C08F236/10 ; C08L15/00 ; C08C19/22

Abstract:
The present invention provides a rubber composition which has excellent processability owing to its low rubber viscosity during kneading, despite containing a white filler, and which further has excellent fuel economy and excellent abrasion resistance. Also provided is a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition including: a rubber component, a white filler, and a compound represented by the formula (1) below, wherein X represents —CONH— or —COO—; R1 represents a C7-C23 alkyl group or a C7-C23 alkenyl group; R2 represents a C1-C3 alkylene group; and R3 and R4 each independently represent a hydrogen atom, a C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group, and at least one of R3 or R4 is the hydroxyalkyl group.
Public/Granted literature
- US20190040240A1 RUBBER COMPOSITION AND PNEUMATIC TIRE Public/Granted day:2019-02-07
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