Tire with improved performances having cuts with a protuberance that locally reduce a width of a cut in the tread

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United States of America Patent

PATENT NO 11186124
APP PUB NO 20200376897A1
SERIAL NO

16496526

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Importance

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Abstract

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Passenger vehicle tire, the tread having edge parts (11), provided with a plurality of transversely or obliquely oriented cuts (3) having a width at most equal to 2 mm and a depth at least equal to 75% of the thickness of the tread that is intended to be worn away, more than half of the cuts (3) comprising a protuberance that locally reduces the width of the cut (3) to a width at least equal to 0.2 mm and at most equal to 0.5 mm. The tread material which comes into contact with the road surface in the new state has a Shore A hardness at least equal to 48 and at most equal to 57, a loss at 60° C. at least equal to 12% and at most equal to 20%, a glass transition temperature Tg at least equal to −20° C. and at most equal to −10° C.

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Patent Owner(s)

Patent OwnerAddress
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN23 PLACE DES CARMES-DECHAUX CLERMONT-FERRAND 63000

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bourgeois, Frédéric Clermont-Ferrand, FR 10 37
Hellot, Fabien Clermont-Ferrand, FR 9 28

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