- Patent Title: Tire comprising a tread made up of several elastomeric compounds
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Application No.: US14650966Application Date: 2013-12-02
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Publication No.: US10023011B2Publication Date: 2018-07-17
- Inventor: Christophe Gayton , Philippe Gervais , Hichem Rehab
- Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN , MICHELIN RECHERCHE ET TECHNIQUE, S.A.
- Applicant Address: FR Clermont-Ferrand CH Granges-Paccot
- Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN,MICHELIN RECHERCHE ET TECHNIQUE S.A.
- Current Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN,MICHELIN RECHERCHE ET TECHNIQUE S.A.
- Current Assignee Address: FR Clermont-Ferrand CH Granges-Paccot
- Agency: Dickinson Wright PLLC
- Priority: FR1261835 20121210
- International Application: PCT/EP2013/075247 WO 20131202
- International Announcement: WO2014/090621 WO 20140619
- Main IPC: B60C11/00
- IPC: B60C11/00 ; B60C11/03

Abstract:
A tire the tread of which contains at least three circumferential grooves, having at least three radially superposed layers of elastomeric compounds.A first elastomeric compound constituting the first layer forming the radially outer part of the tread has a maximum value of tan(δ)max, greater than 0.110, a second elastomeric compound constituting the second layer radially on the inside has a tan(δ)max at least 10% lower than the first elastomeric compound, the radially innermost third layer of the tread consists of at least two first parts and of at least three second parts axially, each one in contact with at least one of the at least two first parts, the at least two first parts axially centered on a radial plane passing through one of the at least three circumferential grooves consisting of the second compound and the at least three second parts consisting of a third elastomeric compound having a maximum value of tan(δ), denoted tan(δ)max, at least 10% lower than the second elastomeric compound.
Public/Granted literature
- US20170008345A1 TIRE COMPRISING A TREAD MADE UP OF SEVERAL ELASTOMERIC COMPOUNDS Public/Granted day:2017-01-12
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