Patent · US Active

Tire tread comprising a thermoplastic elastomer

US10081723B2 · kind B2 · utility

1Cited by

17References

30Claims

0Family size

Assignee

COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN · FR

Inventors

Christophe Chouvel · Clermont-Ferrand, FR
José Carlos Araujo Da Silva · Pont du Château, FR

Key dates

Filing date	Dec 19, 2014
Grant date	Sep 25, 2018
Priority date	—
Expiry date	Jan 5, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2312/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A tire tread comprises a composition based on at least an elastomer matrix comprising a polyisoprene and an unsaturated thermoplastic styrene elastomer which represents at most 50% by weight of the elastomer matrix, a reinforcing filler and a crosslinking system. The unsaturated thermoplastic styrene elastomer comprises at least one rigid styrene segment and at least one flexible isoprene segment, which at least one flexible isoprene segment has a glass transition temperature of less than −20° C. Such a tread exhibits an improved resistance to crack propagation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.